@article{marchezan_abdala_boitt_ferreira_ceretta_silva_tiecher_gatiboni_thoma_palermo_et al._2024, title={Consecutive Applications of Mineral Fertilizer or Animal Wastes and Effects on soil Phosphorus after Thirteen Years of no-tillage}, volume={2}, ISSN={["0718-9516"]}, DOI={10.1007/s42729-024-01683-3}, journal={JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION}, author={Marchezan, Carina and Abdala, Dalton B. and Boitt, Gustavo and Ferreira, Paulo Ademar Avelar and Ceretta, Carlos Alberto and Silva, Isley Cristiellem Bicalho and Tiecher, Tales and Gatiboni, Luciano Colpo and Thoma, Ana Laura and Palermo, Natalia Moreira and et al.}, year={2024}, month={Feb} }
 @article{hu_wang_williams_dwyer_gatiboni_duckworth_vengosh_2024, title={Evidence for the accumulation of toxic metal(loid)s in agricultural soils impacted from long-term application of phosphate fertilizer}, volume={907}, ISSN={["1879-1026"]}, DOI={10.1016/j.scitotenv.2023.167863}, abstractNote={Phosphate fertilizers may contain elevated concentrations of toxic metals and metalloids and therefore, their excessive application can result in the accumulation of both phosphorus (P) and metal(loid)s in agricultural soils. This study aims to investigate the occurrence, distribution, and potential plant-availability of metal(loid)s originating from phosphate fertilizer in a long-term experimental field at the Tidewater Research Station in North Carolina, where topsoil (10–20 cm deep) and subsoil (up to 150 cm deep) samples were collected from five plots with consistent and individually different application rates of P-fertilizer since 1966. We conducted systematic analyses of P and metal(loid)s in bulk soils, in the plant available fraction, and in four sequentially extracted soil fractions (exchangeable, reducible, oxidizable, and residual). The results show that P content in topsoils were directly associated with the rate of P-fertilizer application (ρ = 1, p < 0.05). Furthermore, P concentrations were highly correlated with concentrations of Cd, U, Cr, V, and As in the bulk topsoil (ρ > 0.58, p < 0.05), as well as the potential plant-available fraction (ρ > 0.67, p < 0.01), indicating the accumulation of the fertilizer-derived toxic metal(loid)s in the topsoil. Significant correlations (p < 0.001) of metal(loid)s concentrations between the bulk soil and the potential plant-available fraction raises the possibility that P-fertilizer application could increase the accumulation of toxic metal(loid)s in plants, which could increase human exposure. Results from sequential leaching experiments revealed that large portions of the trace elements, in particular Cd, occur in the soluble (exchangeable and reducing) fractions of topsoil with higher P-fertilizer input, whereas the levels of redox-sensitive elements (As, V, U, Cr) were higher in the reducible and oxidizable fractions of the soils. Overall, the data presented in this study demonstrate the effect of long-term P-fertilizer application on the occurrence and accumulation of a wide range of toxic metal(loid)s in agricultural topsoil.}, journal={SCIENCE OF THE TOTAL ENVIRONMENT}, author={Hu, Jun and Wang, Zhen and Williams, Gordon D. Z. and Dwyer, Gary S. and Gatiboni, Luke and Duckworth, Owen W. and Vengosh, Avner}, year={2024}, month={Jan} }
 @article{rigon_crusciol_calonego_gatiboni_pavinato_colzato_capuani_rosolem_2024, title={Phosphorus speciation under long-term crop rotation management in a tropical soilKey-words}, volume={1}, ISSN={["1475-2743"]}, url={https://doi.org/10.1111/sum.13006}, DOI={10.1111/sum.13006}, abstractNote={Crop rotation and soil management practices after native tropical forest conversion may impact the dynamics of inorganic and organic phosphorus (Pi and Po) species in the soil. By combining the state‐of‐the‐art spectroscopic methods P K‐edge X‐ray absorption near edge structure (XANES), 31P liquid nuclear magnetic resonance (31P‐NMR), and chemical P fractionation, this study provides important insights on soil P speciation after conversion of native forest to cropland under distinct managements. A field trial was conducted in a weathered tropical soil to assess Pi and Po changes after conversion of native forest to cropland. The crop rotations were managed under no‐tillage (NT) or minimum tillage (MT) since 2003, and repeated annually until 2015, cropped in the fall‐winter and spring seasons, followed by soybean in the summer. Soil XANES analysis in the end revealed that P was predominantly associated with ferrihydrite and hematite, suggesting that P speciation was more strongly influenced by the presence of iron(oxyhydr)oxide than by crop rotations and/or soil management. The conversion of native forest to cropland promoted the mineralization of Po species, leading to re‐adsorption in non‐labile forms and consequently worsening the P cycling in the system. To increase the labile P pools and supply crop P demand, inputs of inorganic fertilizers were required owing to the strong soil P sorption. Our results show that even conservation practices such as MT or NT and complex crop rotations are not sufficient to inhibit the impact of cropland conversion on soil P forms.}, journal={SOIL USE AND MANAGEMENT}, author={Rigon, Joao Paulo Gonsiorkiewicz and Crusciol, Carlos Alexandre Costa and Calonego, Juliano Carlos and Gatiboni, Luciano Colpo and Pavinato, Paulo Sergio and Colzato, Marina and Capuani, Silvia and Rosolem, Ciro Antonio}, year={2024}, month={Jan} }
 @article{pesini_flores_alves_filippi_martins_carmona_tiecher_inda_gatiboni_santos_et al._2024, title={Potassium Rates and Application Methods: Effects on Soil K Availability and Crop Response in Planosols and Ferralsols}, volume={3}, ISSN={["1532-2416"]}, DOI={10.1080/00103624.2024.2323081}, journal={COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS}, author={Pesini, Gustavo and Flores, Joao Pedro Moro and Alves, Lucas Aquino and Filippi, Dionata and Martins, Amanda Posselt and Carmona, Felipe de Campos and Tiecher, Tadeu Luis and Inda, Alberto Vasconcellos and Gatiboni, Luciano Colpo and Santos, Danilo Rheinheimer and et al.}, year={2024}, month={Mar} }
 @article{morales_gatiboni_osmond_vann_kulesza_crozier_hardy_2023, title={Critical soil test values of phosphorus and potassium for soybean and corn in three long-term trials in North Carolina}, volume={1}, ISSN={["1435-0661"]}, url={https://doi.org/10.1002/saj2.20491}, DOI={10.1002/saj2.20491}, abstractNote={Abstract Soil test correlation is continuously necessary to affirm critical soil test values (CSTV) for specific nutrients, as changes in crop management and development of new plant varieties may change CSTVs. The objective of this study was to determine the CSTVs of phosphorus (P) and potassium (K) for soybean [ Glycine max (L.) Merr.] and corn ( Zea mays L.) using three long‐term trials in North Carolina. Soybean was cultivated in 2020 and corn in 2021 in three long‐term trials established on research stations located in the Tidewater, Coastal Plain, and Piedmont regions of NC. In each trial, up to five rates of P (0–88.2 kg P ha −1 ) and K (0–186.8 kg K ha −1 ) were applied annually at planting. Soil and tissue samples were analyzed and yield measured. There was yield response to P in all site‐years. The average CSTVs of P for corn and soybean were 51, 66, and 14 mg kg −1 for the sites at Tidewater, Coastal Plain, and Piedmont regions. The CSTV of P for Piedmont (14 mg kg −1 ) differs greatly from the current recommendation for NC (52 mg kg −1 ). The response to K fertilization was observed only in three site‐years and the CSTVs varied from 49 to 93 mg kg −1 , while the current recommendation is setting the CSTV of K at 85 mg kg −1 . These results indicate it is necessary to develop further studies of soil test correlation for P and K in North Carolina to better estimate the CSTVs for the state.}, journal={SOIL SCIENCE SOCIETY OF AMERICA JOURNAL}, author={Morales, Nelida Agramont and Gatiboni, Luke and Osmond, Deanna and Vann, Rachel and Kulesza, Stephanie and Crozier, Carl and Hardy, David}, year={2023}, month={Jan} }
 @misc{silva_cassol_nicoloso_mumbach_dall'' orsoletta_grando_gatiboni_2023, title={Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil}, volume={47}, ISSN={["1806-9657"]}, url={https://doi.org/10.36783/18069657rbcs20230049}, DOI={10.36783/18069657rbcs20230049}, abstractNote={
 
 Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm
 -3
 ) = 13 + 0.5 * % clay” was proposed.
}, journal={REVISTA BRASILEIRA DE CIENCIA DO SOLO}, author={Silva, Walquiria Chaves and Cassol, Paulo Cezar and Nicoloso, Rodrigo da Silveira and Mumbach, Gilmar Luiz and Dall'' Orsoletta, Daniel Joao and Grando, Douglas Luiz and Gatiboni, Luciano Colpo}, year={2023} }
 @article{tiecher_pace_gatiboni_vann_hardy_fisher_2023, title={Flue-cured tobacco and Cl rates: Implications on yield, quality, and nutrient concentration}, volume={2}, ISSN={["1435-0645"]}, url={https://doi.org/10.1002/agj2.21272}, DOI={10.1002/agj2.21272}, abstractNote={Abstract The increase in flue‐cured tobacco ( Nicotiana tabacum L.) yields in recent decades due to genetic improvements of new cultivars and management technologies may increase the plant demand for Cl, and the increased dry mass may dilute Cl concentration, thereby reducing negative effects. This study evaluated the effect of increasing doses of Cl on tobacco production, quality, and chemical composition of leaves, in four growing environments located at research stations where flue‐cured tobacco is produced in North Carolina. The treatments consisted of 11 rates of Cl (0, 11, 22, 34, 45, 56, 67, 78, 90, 101, and 112 kg ha −1 ) in each growing environment, with four replications in a randomized complete block design. The yield and visual quality, total alkaloids, and reducing sugars concentrations of cured leaf were determined. In addition, the concentration of selected nutrients (N, P, K, Ca, Mg, S, and Cl) and nitrate (NO 3 − ) in tobacco leaves was measured in five different periods. Rates of Cl up to 112 kg ha −1 did not reduce the productivity or quality of flue‐cured tobacco in any environment. The Cl rate required to reach the threshold of 1.0% Cl content in cured leaf was site‐specific, being surpassed even in the control treatment at one location, or with Cl rates higher than 34 and 90 kg ha −1 in two environments. In one environment, the Cl rates increased tobacco yield, probably due the direct effect of Cl as a nutrient. Although the increasing Cl rates increased the reducing sugars concentration, visual quality was not attenuated.}, journal={AGRONOMY JOURNAL}, author={Tiecher, Tales and Pace, Cara Ruth and Gatiboni, Luke and Vann, Matthew and Hardy, David and Fisher, Loren}, year={2023}, month={Feb} }
 @article{james_vann_suchoff_mcginnis_whipker_edmisten_gatiboni_2023, title={Hemp yield and cannabinoid concentrations under variable nitrogen and potassium fertilizer rates}, volume={4}, ISSN={["1435-0653"]}, url={https://doi.org/10.1002/csc2.20966}, DOI={10.1002/csc2.20966}, abstractNote={Abstract With the passing of the 2014 US farm bill, there is more interest in industrial hemp ( Cannabis sativa L. < 0.3% total tetrahydrocannabinol [THC]) grown for cannabinoid production. However, production recommendations that outline fertilizer requirements of cannabidiol (CBD) hemp do not exist. Our primary objective was to identify nitrogen (N) and potassium (K) fertilizer rates for maximizing biomass and CBD yield. A secondary objective was to identify the relationships between N and K rates and total THC and total CBD concentrations. Fertilizer rates from 0 to 224 kg N and 0 to 185 kg K ha −1 were tested separately at four general locations in North Carolina. Two locations were used in 2019 and 2020, while the other two were used only in 2020. Dry weight yield was predicted to increase linearly from 1822 to 3384 kg biomass ha −1 as N rate increased from 0 to 86.8 kg ha −1 . Nitrogen rates above 86.8 kg ha −1 were not predicted to increase biomass. Likewise, as N rate increased from 0 to 84.2 kg N ha −1 , CBD yield was predicted to increase linearly from 204 to 389 kg CBD ha −1 . Additional N was not predicted to increase CBD yield. The CBD and THC concentrations showed a slight bell‐shaped response curve over increasing N rates, ranging from 11.33% to 12.11% and 0.473% to 0.509%, respectively. Potassium application did not affect yield nor CBD and THC concentrations. Results from this work indicate that N is a more limiting factor than K for maximizing CBD hemp biomass production.}, journal={CROP SCIENCE}, author={James, Maggie S. and Vann, Matthew C. and Suchoff, David H. and McGinnis, Michelle and Whipker, Brian E. and Edmisten, Keith L. and Gatiboni, Luciano C.}, year={2023}, month={Apr} }
 @article{tilley_jordan_vann_gatiboni_heiniger_stevens_ambrose_2023, title={Influence of planting pattern on corn response to sub-surface drip irrigation}, volume={9}, ISSN={["2374-3832"]}, DOI={10.1002/cft2.20247}, abstractNote={NoneThis article is protected by copyright. All rights reserved}, number={2}, journal={CROP FORAGE & TURFGRASS MANAGEMENT}, author={Tilley, M. Scott and Jordan, David L. and Vann, Rachel A. and Gatiboni, Luke and Heiniger, Ronnie W. and Stevens, Brian and Ambrose, Derek}, year={2023}, month={Dec} }
 @article{grando_gatiboni_mumbach_silva_souza_pietroski_pessotto_iochims_2023, title={Slope and pig slurry rate may increase the transfer of chemical elements by surface water runoff}, volume={32}, ISSN={["1520-6483"]}, DOI={10.1002/tqem.22004}, abstractNote={Abstract There is a need to evaluate the interference of pig slurry rate and the terrain slope in the chemical elements losses from the soil. This work aimed to quantify water and chemical element losses by surface runoff due to terrain slope and pig slurry rate (PS) in two soils with contrasting textures. Two trials were evaluated in 2018 and 2019 in Cambisol and Nitisol. Rates of 0, 22.5, 45, and 90 m 3 ha −1 yr −1 of PS were applied superficially in sites with slopes ranging from 10% to 35%. Perennial forage grass Tifton 85 ( Cynodon dactylon ) was grown as summer crop and ryegrass ( Lolium multiflorum ) was sown in the cold seasons in a field environment. Were determined the runoff, the volume of water, and chemical elements (Al, Ca, P, Mg, Cd, Cr, Cu, Mn, Fe, Pb, and Zn) lost by the surface runoff after natural rainfall. Increasing land slope elevated water losses substantially, on average 23.4 times in Cambisol and 10.8 times in Nitisol. This increase resulted in average increases of 27.6 and 12.4 times in the losses of the chemical elements analyzed for Cambisol and Nitisol, respectively. There was a reduction in water losses by surface runoff due to increased PS rates applied in both sites. The increased PS rate affected the losses of Cr and Cu in Cambisol and P, Mg, Cd, and Cu in Nitisol. The clayey soil potentiated the water and chemical elements losses by surface runoff in relation to the soil with lower clay content. Regardless of the soil, water and chemical element losses are maximized at higher slopes.}, number={4}, journal={ENVIRONMENTAL QUALITY MANAGEMENT}, author={Grando, Douglas Luiz and Gatiboni, Luciano Colpo and Mumbach, Gilmar Luiz and Silva, Walquiria Chaves and Souza, Abelino Anacleto and Pietroski, Marizane and Pessotto, Patricia Pretto and Iochims, Daniel Alexandre}, year={2023}, month={Jun}, pages={281–292} }
 @article{tiecher_fontoura_ambrosini_araujo_alves_bayer_gatiboni_2023, title={Soil phosphorus forms and fertilizer use efficiency are affected by tillage and soil acidity management}, volume={435}, ISSN={["1872-6259"]}, url={https://doi.org/10.1016/j.geoderma.2023.116495}, DOI={10.1016/j.geoderma.2023.116495}, abstractNote={Liming combined with no-tillage (NT) can increase the efficiency of P use by accumulating soil P in more available forms and improving root exploration due to the absence of toxic Al3+. This study aimed to evaluate the long-term effect of different combinations of soil tillage managements and liming in a subtropical Oxisol on the accumulation of P forms, legacy P index, and P use efficiency. A long-term experiment was used, established in 1987 testing (i) conventional tillage with lime (lime-CT) and control (control-CT), (ii) NT with lime (lime-NT) and control (control-NT), and (iii) occasional tillage with lime (lime-OT). The NPK fertilization was the same for all treatments. The accumulated grain yield and P use efficiency of 56 crops between 1987 and 2019 were evaluated. In 2019, soil samples were collected in the 0–5, 5–10, and 10–20 cm layers and submitted to a sequential chemical fractionation of P, P indexes, and soil acidity parameters. The results reveal that is necessary to correct acidity to increase crop yields and P use efficiency, regardless of the soil management used. This increase is enhanced when soil acidity correction by liming is combined with the use of conservation systems such as NT. Furthermore, after liming with incorporation, liming can be done on the soil surface, without the need to repeat the operation of lime incorporation, ensuring high efficiency of P use even after more than four decades.}, journal={GEODERMA}, author={Tiecher, Tales and Fontoura, Sandra M. V. and Ambrosini, Vitor G. and Araujo, Esraelda A. and Alves, Lucas A. and Bayer, Cimelio and Gatiboni, Luciano C.}, year={2023}, month={Jul} }
 @article{tiecher_gatiboni_osmond_hardy_2023, title={Soil sampling depth effect on critical soil test values of phosphorus for conservation agriculture}, volume={9}, ISSN={["2374-3832"]}, url={https://doi.org/10.1002/cft2.20251}, DOI={10.1002/cft2.20251}, abstractNote={The critical soil test value (CSTV) of phosphorus (P) is the threshold where it is possible to obtain 95–100% of the maximum crop yield. Although the P buildup in the topsoil of conservation tillage may affect this threshold, the effect of soil sampling depth on CSTV value have not been determined for conservation tillage in the southern United States. The objective of this study was to evaluate CSTV of P using different soil layers from two long‐term experiments managed under varying P rates, planted to corn/soybean rotation under minimum tillage (Tidewater) or no‐tillage (Piedmont) in North Carolina. Soil samples were taken from depths of 0–2, 2–4, 4–8, and 8–12 inches. The CSTV for different soil layers was calculated using a quadratic‐plateau model with Mehlich‐3 P and relative yield of soybean and corn (2021‐2022). The CSTV decreased as the soil sampling depth increased. The CSTV of P at the Tidewater site was 128, 111, 86, and 74 lb ac−1, and at the Piedmont site was 28, 20, 16, and 15 lb ac−1 for the 0–2, 0–4, 0–8, and 0‐12‐inches soil layers, respectively. Using multiple sampling layers or using deeper layers did not improve the quality of CSTV measurement. The current sampling depths used in North Carolina are appropriate for minimum tillage (0‐8 inches) and no tillage (0‐5 inches), as similar quality models were obtained using either soil layers in both sites. However, it is important to be cautious when changing the sampling depth, as this affect the CSTV value.This article is protected by copyright. All rights reserved}, number={2}, journal={CROP FORAGE & TURFGRASS MANAGEMENT}, author={Tiecher, Tales and Gatiboni, Luke and Osmond, Deanna and Hardy, David}, year={2023}, month={Dec} }
 @article{respess_austin_gatiboni_osmond_2022, title={Assessing the Agricultural Conservation Planning Framework toolbox in a Southern Piedmont landscape of the United States}, volume={77}, ISSN={["1941-3300"]}, DOI={10.2489/jswc.2022.00138}, abstractNote={The Agricultural Conservation Planning Framework (ACPF) is a geospatial decision support tool that was developed and is used in many areas of the Midwest of the United States to help with the prioritization and placement of conservation practices within agricultural watersheds. We evaluated the utility and extensibility of ACPF in two US Geological Survey 12-digit scale hydrologic units in the Southern Piedmont of North Carolina. The Southern Piedmont consists of less row crop agriculture and more pasture systems than the Midwest and has generally lower pollutant loads. Also, agricultural fields are comparatively smaller, irregularly shaped, and more sparsely distributed. For this study, local conservation experts were interviewed about conservation practices and their appropriate locations in the landscape. Interviewees demonstrated an extensive working knowledge of the land and producers on over 90% of the farmland. Many of the conservation practices identified by the local experts were “soil health” practices, such as cover crops or nutrient management, and are assumed in use before running ACPF. Results revealed that many of the conservation practices output by ACPF were not identified by the local experts in the Southern Piedmont watersheds due to their limited use in pasture conservation, conservation priorities, and landscape characteristics. Row crop agriculture was sparsely distributed in each study watershed and comprised less than 2% of the total catchment area. Contour buffer strips and grassed waterways were the conservation practices most identified by ACPF and were sited in 75% of cropped fields. A greater number of crop-related conservation practices (48 versus 15) were identified by ACPF than by local experts; however 80% of the conservation practices identified by the experts were outside the scope of ACPF and were mainly nutrient management or soil health practices. To evaluate ACPF for broader utility in the Southern Piedmont, alternative interpretations for existing outputs were considered: (1) ACPF “proxies” were identified to compare locally accepted practices with ACPF outputs that perform a similar function (e.g., strip cropping rather than contour buffer strips) and, (2) placing locally used conservation practices (e.g., exclusion fencing) based on existing ACPF data layers (hydrologically enforced flow paths). Alternative uses and interpretations surrounding ACPF outputs and data layers may provide opportunities for conservation planning outside the scope and intended use of ACPF in the Southern Piedmont.}, number={5}, journal={JOURNAL OF SOIL AND WATER CONSERVATION}, author={Respess, Z. M. and Austin, R. and Gatiboni, L. and Osmond, D.}, year={2022}, pages={441–449} }
 @article{tiecher_gatiboni_santos_bissani_martins_gianello_dick_bortoluzzi_escosteguy_silva_et al._2022, title={Base saturation is an inadequate term for Soil Science}, volume={46}, ISSN={["1806-9657"]}, url={https://doi.org/10.36783/18069657rbcs20220125}, DOI={10.36783/18069657rbcs20220125}, abstractNote={Bases are chemical species that donate electrons, accept protons, or release hydroxyls (OH -) in aqueous solution.In Soil Science, "base saturation", "exchangeable bases" or "basic cations" has been widely used to distinguish Ca 2+ , Mg 2+ , Na + , and K + from H + and Al 3+ cations.This terminology is confusing since none of these cations are truly a base in chemistry sense.However, in the absence of the proposition of a correct term, the term "base saturation" remains in use nowadays, causing confusion among students, professionals, and even among professors and researchers in Soil Science, as it leads to the erroneous interpretation that the soil acidity can be corrected by adding these cations to the soil.Here, we present the historical background of this nomenclature and a theoretical foundation that justifies the abolition of the use of these terms in Soil Science.We consider that the most correct is to call it "Ca-Mg-K-Na saturation", which, despite being long, would refer directly and without any misinterpretation of the terminology.In Soil Fertility, the "base saturation" is often calculated only as a function of the sum of Ca, Mg, and K, since the Na content is negligible in most tropical and subtropical soils.Thus, one could use the term "Ca-Mg-K saturation".Likewise, it is also suggested to abolish the use of the term "sum of bases" and use the term "sum of Ca-Mg-K" or "sum of Ca-Mg-K-Na" instead when necessary.}, journal={REVISTA BRASILEIRA DE CIENCIA DO SOLO}, author={Tiecher, Tales and Gatiboni, Luke and Santos, Danilo Rheinheimer and Bissani, Carlos Alberto and Martins, Amanda Posselt and Gianello, Clesio and Dick, Deborah Pinheiro and Bortoluzzi, Edson Campanhola and Escosteguy, Pedro Alexandre Varella and Silva, Leandro Souza and et al.}, year={2022} }
 @article{kulesza_burns_woodley_gatiboni_shupe_hicks_2022, title={Distribution and Fractionation of Zinc and Copper in Poultry Litters Across North Carolina}, volume={5}, ISSN={["1532-2416"]}, DOI={10.1080/00103624.2022.2072866}, abstractNote={ABSTRACT Zinc (Zn) and copper (Cu) are necessary micronutrients for crop production. However, excess Zn and Cu applied through land application of manures can result in Zn and Cu toxicity, reducing yields. With many integrators and little information on the formulation of poultry feeds in North Carolina (NC), it is difficult to predict the fractionation of Zn and Cu in litters generated at facilities, as the form of Zn and Cu determines mobility and bioavailability. Therefore, statewide data from the NC Department of Agriculture and Consumer Services was analyzed to determine regional variation of total Zn and Cu. The results showed a significant effect of the region on the total Zn and Cu among the three production regions in the state. Additionally, 11 broilers and broiler breeder litter samples were analyzed to determine the distribution of Zn and Cu in acid soluble, reducible, oxidizable, and residual fractions. Total Zn and Cu averaged 675 mg/kg and 629 mg/kg, respectively. There was a significant interaction between the region and Zn concentration in the fractions. However, there was no region interaction when converted to a percentage of the sum of the fractions, indicating Zn partitions similarly across a wide range of concentrations and 37%, 40%, 21%, and 0.6% was found in the acid soluble, reducible, oxidizable, and residual fractions, respectively. Region did not have an effect on Cu fractionation, with 26%, 8%, 67%, and 2% of Cu in the acid-soluble, reducible, oxidizable, and residual fractions, respectively. Results indicate greater bioavailability and mobility potential for Zn as compared to Cu.}, journal={COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS}, author={Kulesza, Stephanie and Burns, Joseph and Woodley, Alex and Gatiboni, Luciano and Shupe, Maggie and Hicks, Kristin}, year={2022}, month={May} }
 @article{dall'orsoletta_mumbach_brignoli_gatiboni_2022, title={Elemental sulfur recommendation for pH reduction in soils from Soutnern Brazil}, volume={26}, ISSN={["1807-1929"]}, url={https://doi.org/10.1590/1807-1929/agriambi.v26n3p212-218}, DOI={10.1590/1807-1929/agriambi.v26n3p212-218}, abstractNote={ABSTRACT The elemental sulfur (S0) application may reduce soil pH, benefiting plants adapted to acid conditions and lessening problems of overliming. Nevertheless, there is no official recommendation for its application. The objective of the study was to quantify the S0 doses required to reduce the pH of soils from Southern Brazil. The experiment was carried out in the laboratory in a factorial scheme (5 × 5), with a completely randomized design and three replicates. The treatments consisted of five soils, and five doses of S0, corresponding to 0, 50, 100, 150, and 200% of the estimated dose need to reach pH 4.0. The applied doses of S0 resulted in reduction of pH and base saturation (V%) and increase of potential acidity (H + Al). These effects, however, were reduced due to the low rate of oxidation of the S0 applied (0.76-3.36%). The soil variables correlated with S0 oxidation were Mg2+ (0.86***), Al3+ (-0.82***), H + Al (-0.89***), V% (0.68***) and aluminum saturation (m%) (-0.87***). In the evaluated soils the oxidation of 50 kg ha-1 of S0 was required to reduce one unit of pH in H2O.}, number={3}, journal={REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL}, author={Dall'Orsoletta, Daniel J. and Mumbach, Gilmar L. and Brignoli, Fernando M. and Gatiboni, Luciano C.}, year={2022}, month={Mar}, pages={212–218} }
 @article{alves_oliveira denardin_farias_flores_filippi_bremm_faccio carvalho_martins_gatiboni_tiecher_2022, title={Fertilization strategies and liming in no-till integrated crop–livestock systems: effects on phosphorus and potassium use efficiency}, url={https://doi.org/10.36783/18069657rbcs20210125}, DOI={10.36783/18069657rbcs20210125}, abstractNote={: In an integrated crop-livestock system (ICLS), system fertilization exploits the nutrient cycling imposed by animal grazing and increases the system efficiency. An increasingly popular approach to fertilization in southern Brazil is anticipating P and K requirements for soybeans into the pasture phase. This can increase the use efficiency of these nutrients in ICLS based on meat production in winter and soybean in summer. This study aimed to evaluate the effect of fertilization strategy, grazing and soil acidity correction on herbage and animal production, soybean yield, P and K contents in soil and plant tissue, and P and K use and economic efficiency. In 2017, a field experiment was established on an Acrisol ( Argissolo Vermelho distrófico ) double-cropped with soybean and Italian ryegrass under no-tillage. Herbage and animal production, soybean yield, available P and K contents, and P and K plant tissue status were determined. Available P and K in the soil were unaffected by grazing and fertilization strategy. Conversely, system fertilization and liming increased the P and K contents of aboveground Italian ryegrass biomass. Additionally, the available K budget in the soil was 2.7 times smaller in the integrated system with system fertilization than in the specialized system with conventional fertilization, possibly due to K fixation in non-exchangeable forms. By contrast, the available P budget in the soil was not affected by treatments and was positive with all systems. The use of ICLS increased economic return, and P and K use efficiency for protein production. System fertilization did not affect soybean yield, but it increased the total herbage production of Italian ryegrass. Despite this, sheep live weight did not increase. Using ICLS in combination with system fertilization provides an effective nutrient management strategy with a higher potential for sustainable food production when compared with conventional fertilization.}, journal={Revista Brasileira de Ciência do Solo}, author={Alves, Lucas Aquino and Oliveira Denardin, Luiz Gustavo and Farias, Gustavo Duarte and Flores, João Pedro Moro and Filippi, Dionata and Bremm, Carolina and Faccio Carvalho, Paulo César and Martins, Amanda Posselt and Gatiboni, Luciano Colpo and Tiecher, Tales}, year={2022}, month={May} }
 @article{brignoli_gatiboni_mumbach_dall'orsoletta_souza_grando_2022, title={Gypsum in Improving the Use of Phosphate Fertilization for Soybean Crops}, volume={12}, ISSN={["1532-2416"]}, url={https://doi.org/10.1080/00103624.2022.2159039}, DOI={10.1080/00103624.2022.2159039}, abstractNote={ABSTRACT The improvement of the chemical conditions of the soil in the subsurface is indicated as an alternative to increasing soybean yields because it is related to greater efficiency of water and nutrient use, such as phosphorus (P). The study aimed to evaluate the soil chemical changes and the soybean yield due to the application of P and gypsum. For this, a field experiment was conducted between 2017 and 2020 under a Humic Cambisol in Southern Brazil. The treatments were composed of four corrective rates of P2O5 (0, 50, 100, and 200 kg ha−1) associated or not with agricultural gypsum (0 and 1400 kg ha−1). In the first year of evaluation, there was an increase in soybean yield with gypsum, and rates of P. In the absence of P correction, root length density was higher in the 20–30 cm layer. There was a linear increase in P available in the topsoil (0–10 cm) as a function of the nutrient rate. With gypsum application, there was an increase in calcium (Ca) and reduction of magnesium (Mg) in the 0–10 cm layer, besides the increase of sulfate (S-SO4 2-) in all layers. The application of agricultural gypsum promotes chemical changes in the soil at depths of up to 40 cm and gains in soybean yield, even without altering the efficiency of P use by plants.}, journal={COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS}, author={Brignoli, Fernando Marcos and Gatiboni, Luciano Colpo and Mumbach, Gilmar Luiz and Dall'Orsoletta, Daniel Joao and Souza, Abelino Anacleto and Grando, Douglas Luiz}, year={2022}, month={Dec} }
 @article{souza junior_mumbach_almeida_grando_gatiboni_brunetto_ernani_2022, title={Potassium buffering capacity and corrective potassium fertilizer recommendations in soils from Southern Brazil}, volume={46}, ISSN={["1806-9657"]}, url={https://doi.org/10.36783/18069657rbcs20220010}, DOI={10.36783/18069657rbcs20220010}, abstractNote={: Soils with low potassium (K) availability require corrective fertilization for grain crops. The recommended rate to increase K availability up to the critical level depends on the soil K buffering capacity (KBC). This study aimed to quantify the KBC and recalculate the rates necessary to reach the K critical level in 23 soils from Southern Brazil. Soil samples were incubated with six K rates, that were thus grouped according to CEC pH7.0 : below 7.5 cmol c dm -3 (0, 30, 60, 90, 120 and 180 kg K 2 O ha -1 ); from 7.6 to 15 cmol c dm -3 (0, 30, 60, 120, 180 and 240 kg K 2 O ha -1 ) and from 15.1 to 30 cmol c dm -3 (0, 30, 60, 120, 240 and 360 kg K 2 O ha -1 ). The soil test K (STK) was extracted by Mehlich-1 and the fertilizer rates necessary to increase the STK by 1 mg dm -3 were quantified. The KBC values were correlated with a suite of soil testing metrics. The relationship between the cation exchange capacity (CEC pH7.0 ) and KBC was modeled, and a linear-plateau equation presented the best fit. The K rates were calculated using the following equation: K rate = (Critical Level - STK) × KBC and were compared with the current rate indicated by the Local Soil Fertility Committee. The K fertilizer rates by KBC were about 2.5 times higher than the values currently indicated, and the largest differences were observed in soils with low STK and high CEC pH7.0 .}, journal={REVISTA BRASILEIRA DE CIENCIA DO SOLO}, author={Souza Junior, Abelino Anacleto and Mumbach, Gilmar Luiz and Almeida, Edila and Grando, Douglas Luiz and Gatiboni, Luciano Colpo and Brunetto, Gustavo and Ernani, Paulo Roberto}, year={2022} }
 @article{morais_comin_lourenzi_tiecher_soares_loss_gatiboni_bortolini_ferreira_santos_et al._2022, title={Proposition of critical thresholds for copper and zinc transfer to solution in soils}, volume={194}, ISSN={["1573-2959"]}, DOI={10.1007/s10661-022-10278-3}, abstractNote={Several studies have reported increased copper (Cu) and zinc (Zn) levels in agricultural soils worldwide, mainly due to organic waste and successive leaf fungicide applications in crops. However, the critical transfer thresholds in soils, which can indicate the real risk of environmental contamination and toxicity to plants, remain poorly understood. This study aimed to define the maximum Cu and Zn adsorption capacity (MAC) and threshold (T-Cu and T-Zn) in different soils in Southern Brazil, which present different clay and organic matter (OM) levels. Bw (Oxisol) and A horizon (Inceptisol) samples were used to obtain soils with clay and OM contents ranging from 4 to 70% and from 0.5 to 9.5%, respectively. Cu and Zn adsorption curves were plotted for MAC determination purposes. Based on Cu and Zn MAC values, different concentrations of these elements were applied to the soils for subsequent quantification of available Cu and Zn levels (Mehlich-1 and water). T-Cu in soils with different clay contents ranged from 81 to 595 mg Cu kg -1 , whereas T-Zn, from 195 to 378 mg Zn kg -1 . T-Cu in soils with different OM levels ranged from 97 to 667 mg Cu kg -1 , whereas T-Zn, from 226 to 495 mg Zn kg -1 . T-Cu can be calculated through the equation: T-Cu = 75 × (%CL 0.34 ) × (%OM 0.39 ), whereas T-Zn: T-Zn = 2.7 × (CL) + 126 (by taking into consideration the clay content) and T-Zn = - 9.3 × (%OM) 2  + 92.4 × (%OM) + 66 (by taking into consideration OM content). T-Cu and T-Zn can be used by researchers, inspection bodies, technical assistance institutions, and farmers as safe indicators to monitor the potential for environmental contamination.}, number={9}, journal={ENVIRONMENTAL MONITORING AND ASSESSMENT}, author={Morais, Gildean Portela and Comin, Jucinei Jose and Lourenzi, Cledimar Rogerio and Tiecher, Tadeu Luis and Soares, Claudio Roberto Fonseca Sousa and Loss, Arcangelo and Gatiboni, Luciano Colpo and Bortolini, Juliana Gress and Ferreira, Guilherme Wilbert and Santos, Eduardo Maciel Haitzmann and et al.}, year={2022}, month={Sep} }
 @article{boitt_marchezan_ceretta_brunetto_lourenzi_girotto_ferreira_basso_gatiboni_condron_2022, title={The fate of pig slurry phosphorus applied to a sandy loam soil under no-till cropping in southern Brazil}, volume={422}, ISSN={["1872-6259"]}, DOI={10.1016/j.geoderma.2022.115931}, abstractNote={• We investigated and quantified the phosphorus (P) fate in a cropping system. • After 8 years, total P inputs to a sandy soil were up to 2511 kg ha −1 . • Vertical movement of P in soil was confined to the top 35 cm layer. • Mass balance indicated that 59–81% of P added was accumulated in the soil pool. • P accounted in grain and runoff were similar, while leaching was a minor P loss. Repeated phosphorus (P) inputs can lead to the accumulation of surplus P in soil with enhanced potential risk of transfer and accelerated eutrophication of aquatic environments. Intensive pork production in Rio Grande do Sul in southern Brazil results in the generation of large quantities of P-rich waste in the form of pig slurry, which is used to fertilise crops. The aim of this study was to assess and quantify the impact of repeated application of pig slurry P over 8 years (2000–2007) on the fate of P in a sandy loam soil maintained under a mixed cropping regime. In a replicated field trial, pig slurry was applied at three rates (20, 40, and 80 m 3 ha −1 ), which resulted in cumulative P inputs over the 8-year period of 628, 1256, and 2511 kg P ha −1 . Slurry inputs of 20, 40, and 80 m 3 ha −1 resulted in the accumulation of 368, 936, and 2039 kg P ha −1 in soil to 60 cm, respectively. A combination of soil storage (59–81 %), crop removal (7–14 %), and total P transfer in surface runoff (5–15 %) accounted for most of the P applied in pig slurry over 8 years. Our results highlight the potential environmental impacts of runoff P losses in long-term waste-amended and intensively managed subtropical coarse-textured soils. Measures to minimise soil erosion and P transfers from land to water bodies are of utmost importance.}, journal={GEODERMA}, author={Boitt, Gustavo and Marchezan, Carina and Ceretta, Carlos Alberto and Brunetto, Gustavo and Lourenzi, Cledimar Rogerio and Girotto, Eduardo and Ferreira, Paulo Ademar Avelar and Basso, Claudir Jose and Gatiboni, Luciano Colpo and Condron, Leo}, year={2022}, month={Sep} }
 @article{gatiboni_condron_2021, title={A rapid fractionation method for assessing key soil phosphorus parameters in agroecosystems}, volume={385}, ISSN={["1872-6259"]}, DOI={10.1016/j.geoderma.2020.114893}, abstractNote={A wide variety of soil phosphorus (P) fractionation schemes have been developed and used extensively for over 60 years, however, most are laborious and provide limited information on key parameters such as P mobility and adsorption. We propose an alternative multi-stage extraction technique that it is possible to complete in one day. This involves separate analysis of three subsamples, including assessment of inorganic P (Pi) adsorption capacity, P fractions (sequential extraction with 1 M CaCl2, Mehlich-3, 0.5 M NaOH, 1 M HCl, and total P (H2SO4-H2O2 digestion)). This provides data on potentially mobile Pi, plant-available Pi, moderately plant-available Pi, organic P, occluded P, the degree of P saturation, together with a “legacy P index”. Assessment of these parameters involved comparing two contrasting soils that had received similar P inputs as pig manure over two years. Results showed that P inputs significantly increased all soil P fractions, with concomitant significant increases in P saturation and legacy P. The findings of this study demonstrated the potential value in using the proposed methodology to provide a comprehensive suite of physico-chemical soil P data. This information may facilitate investigation and quantification of the impacts of land management and inputs on the dynamics and bioavailability of soil P in agroecosystems, although further assessment and validation is required.}, journal={GEODERMA}, author={Gatiboni, Luciano C. and Condron, Leo M.}, year={2021}, month={Mar} }
 @article{tilley_jordan_heiniger_vann_crozier_gatiboni_2021, title={A survey of twin-row cropping systems in North Carolina}, volume={7}, ISSN={["2374-3832"]}, DOI={10.1002/cft2.20099}, abstractNote={Abstract}, number={1}, journal={CROP FORAGE & TURFGRASS MANAGEMENT}, author={Tilley, M. Scott and Jordan, David L. and Heiniger, Ronnie W. and Vann, Rachel and Crozier, Carl R. and Gatiboni, Luke}, year={2021} }
 @article{somavilla_caner_silva_bastos_moro_schaefer_gatiboni_santos_2021, title={Chemical pattern of vegetation and topsoil of rangeland fertilized over 21 years with phosphorus sources and limestone}, volume={205}, ISSN={["1879-3444"]}, DOI={10.1016/j.still.2020.104759}, abstractNote={The Pampa's rangeland in South America is underused or replaced by annual crops or forest cultivation with higher economic returns. Our goal was to test the long term effects of phosphorus fertilizer and limestone applications on P availability, aluminum neutralization in deep soil layer and rangeland productivity. For this, three rates of three phosphorus sources combined with limestone were applied in a 21 year field trial. The dry matter (between 2016 and 2019) and nutrient accumulation in plant shoot were measured. The topsoil was divided in four layers (0–2.5, 2.5–5.0, 5.0–7.5, and 7.5–10.0 cm), and chemical properties were determined. Rock phosphate application at rate 249 kg ha−1 of P increased the soil P content along the soil profile down to 7.5 cm. After 21 years of liming, the neutralizing front reached depths greater than 10 cm and the reacidification was not significant. In these conditions, the contents of exchangeable Ca, Mg and Al and pH are greater than, and Al saturation is lower than without limestone. The effect of fertilization and limestone amendments are however limited in time and there was no response of rangeland dry matter production after more than four years after the last fertilization.}, journal={SOIL & TILLAGE RESEARCH}, author={Somavilla, Andre and Caner, Laurent and Silva, Isley Cristiellem and Bastos, Marilia Camotti and Moro, Leticia and Schaefer, Gilmar Luiz and Gatiboni, Luciano Colpo and Santos, Danilo Rheinheimer}, year={2021}, month={Jan} }
 @article{grando_gatiboni_dall'orsoletta_schmitt_mumbach_souza junior_brignoli_2021, title={Development and validation of a siphoning prototype for surface runoff evaluation}, volume={50}, ISSN={["1537-2537"]}, url={https://doi.org/10.1002/jeq2.20266}, DOI={10.1002/jeq2.20266}, abstractNote={Abstract}, number={5}, journal={JOURNAL OF ENVIRONMENTAL QUALITY}, publisher={Wiley}, author={Grando, Douglas Luiz and Gatiboni, Luciano Colpo and Dall'Orsoletta, Daniel Joao and Schmitt, Djalma Eugenio and Mumbach, Gilmar Luiz and Souza Junior, Abelino Anacleto and Brignoli, Fernando Marcos}, year={2021}, month={Aug} }
 @article{pessotto_gatiboni_orsoletta_mumbach_iochims_2021, title={Increased vegetation ground cover reduces water, sediment and phosphorus losses in Cambisol treated with swine slurry}, url={https://doi.org/10.5965/223811712032021222}, DOI={10.5965/223811712032021222}, abstractNote={This study aims to evaluate the influence of the ground cover rate by crop residues and the rain time elapsed after the application of liquid swine slurry (LSS) under losses of water, sediments, and phosphorus (P). The study was carried out under a Humic Cambisols. Two areas were delimited: with and without the application of LSS. Each area was subdivided into four levels of crop residues: 5%, 35%, 65%, and 95%. Vegetable residues present in the area, from corn and black oat, were used. Three collecting gutters of 0.60 m² were installed in each subplot. Simulated rain was carried out on these, and the runoff volume collected for quantification and determination of losses. With LSS application, increase in the cover rate by crop residues reduces 0.3 mm h-1 the runoff volume and 1.67 mg m-2 reactive soluble P (H2O-P). The sediment losses in the first collection after the beginning of the rain were 23 times lower in the soil with 95% ground cover than in the soil with 5% ground cover. The loss of total P (total-P) decreases with the increase of the ground cover of the soil and increases in the same way with the increase of the time.}, journal={Revista de Ciências Agroveterinárias}, author={Pessotto, Patrícia Pretto and Gatiboni, Luciano Colpo and Orsoletta, Daniel João Dall and Mumbach, Gilmar Luiz and Iochims, Daniel Alexandre}, year={2021}, month={Dec} }
 @article{slaton_lyons_osmond_brouder_culman_drescher_gatiboni_hoben_kleinman_mcgrath_et al._2021, title={Minimum dataset and metadata guidelines for soil-test correlation and calibration research}, volume={11}, ISSN={["1435-0661"]}, url={https://doi.org/10.1002/saj2.20338}, DOI={10.1002/saj2.20338}, abstractNote={Abstract Soil‐test correlation and calibration data are essential to modern agriculture, and their continued relevance is underscored by the expansion of precision farming and the persistence of sustainable soil management priorities. In support of transparent, science‐based fertilizer recommendations, we seek to establish a core set of required and recommended information for soil‐test P and K correlation and calibration studies, a minimum dataset, building on previous research. The Fertilizer Recommendation Support Tool (FRST) project team and collaborators are developing a national database that will support a soil‐test‐based nutrient management decision aid tool. The FRST team includes over 80 scientists from 37 land‐grant universities, two state universities, one private university, three federal agencies, two private not‐for‐profit organizations, and one state department of agriculture. The minimum dataset committee developed and vetted a robust set of factors fo minimum dataset consideration that includes information on soil sample collection and processing, soil chemical and physical properties, experimental design and statistical analyses, and metadata about the trial, production system, and field management. The minimum dataset provides guidelines for essential information to meet the primary objective of knowledge synthesis, including meta‐analysis and systemic reviews, but permits researchers the flexibility to satisfy local, state, and regional objectives. Ultimately, this consensus‐driven effort seeks to establish a standard that ensures the maximum utility and impact of modern correlation and calibration studies for developing crop nutrition recommendations that improve productivity and profitability for the crop producer, while reducing environmental impacts of nutrient losses.}, journal={SOIL SCIENCE SOCIETY OF AMERICA JOURNAL}, publisher={Wiley}, author={Slaton, Nathan A. and Lyons, Sarah E. and Osmond, Deanna L. and Brouder, Sylvie M. and Culman, Steve W. and Drescher, Gerson and Gatiboni, Luciano C. and Hoben, John and Kleinman, Peter J. A. and McGrath, Joshua M. and et al.}, year={2021}, month={Nov} }
 @article{tiecher_brunetto_rheinheimer_gatiboni_comin_schmitt_tiecher_ambrosini_2021, title={Phosphorus accumulation in a southern Brazilian Ultisol amended with pig manure for nine years}, volume={78}, ISSN={["1678-992X"]}, url={https://doi.org/10.1590/1678-992x-2019-0157}, DOI={10.1590/1678-992X-2019-0157}, abstractNote={: This study evaluated P pools after nine years of successive application of either pig slurry (PS) or deep pig litter (DL) in a no-till Ultisol from southern Brazil. The experiment was established in Dec 2002 with the treatments control, application of 90 and 180 kg N ha –1 N as PS and as DL. In Mar 2010, soil samples were taken at six layers up to 30 cm deep. Total organic and inorganic P were assessed by the ignition method, and P compounds classes were evaluated by 31 P-NMR spectroscopy. Total soil P increased proportionally with the P amount applied via DL and PS. Only DL application increased soil organic P, mainly at the highest dose and in the uppermost soil layers. The application of high doses of manure to these soils under no-till to meet crop N demands significantly increased P accumulation at the soil surface, especially with DL. This, in turn, increases the risk of contamination of water bodies due to P transfer from soil to rivers via runoff. The ignition method overestimates organic P compared to P-NMR. The highest proportion of organic P estimated by the ignition and P-NMR methods, at surface layers in the control suggests that inorganic P is added to the plots treated, increasing inorganic P and decreasing organic P. Moreover, with no P additions to the control, inorganic soil P is removed by plants, causing an apparent increase in the organic P proportion.}, number={3}, journal={SCIENTIA AGRICOLA}, publisher={FapUNIFESP (SciELO)}, author={Tiecher, Tales and Brunetto, Gustavo and Rheinheimer, Danilo and Gatiboni, Luciano Colpo and Comin, Jucinei Jose and Schmitt, Djalma Eugenio and Tiecher, Tadeu Luis and Ambrosini, Vitor Gabriel}, year={2021} }
 @article{gatiboni_junior_dall'orsoletta_mumbach_kulesza_abdala_2021, title={Phosphorus speciation in soils with low to high degree of saturation due to swine slurry application}, volume={282}, ISSN={["1095-8630"]}, url={https://doi.org/10.1016/j.jenvman.2020.111553}, DOI={10.1016/j.jenvman.2020.111553}, abstractNote={Soils with continuous application of swine slurry (SS) may present high phosphorus (P) content and high risk for environmental pollution. The aim of this study was to characterize the forms of phosphorus accumulation in 15 fields with increasing degrees of P saturation (DPS) in a watershed with a high density of swine farming. Soil samples collected from 0 to 10 cm were chemically characterized for water soluble phosphorus (WSP), DPS, Hedley chemical fractionation, and chemical speciation by P K-edge XANES. WSP increased linearly to a value of 137% of DPS, with subsequent stabilization at 2.7 mg kg−1. Only the inorganic fractions of the chemical fractionation changed with increasing DPS. Phosphorus forms considered labile increased up to 144% of DPS, with subsequent stabilization. The moderately labile fraction 0.1 M NaOH and non-labile 1 M HCl increased exponentially. Phosphorus K-edge XANES analysis demonstrated that P associated to apatite, amorphous aluminum minerals, and goethite were the main forms of P found and only the latter had a correlation with DPS (−0.57*). With increasing DPS, there are changes in the dynamics of P in the soil, with a reduction in forms associated to Fe and an increase in forms linked to Al. The forms linked to Al buffer the WSP and are recovered in the first inorganic fractions of the Hedley chemical fractionation.}, journal={JOURNAL OF ENVIRONMENTAL MANAGEMENT}, author={Gatiboni, Luciano Colpo and Junior, Abelino Anacleto de Souza and Dall'Orsoletta, Daniel Joao and Mumbach, Gilmar Luiz and Kulesza, Stephanie Brooke and Abdala, Dalton Belchior}, year={2021}, month={Mar} }
 @article{gatiboni_schmitt_tiecher_veloso_santos_kaminski_brunetto_2021, title={Plant uptake of legacy phosphorus from soils without P fertilization}, volume={119}, ISSN={["1573-0867"]}, DOI={10.1007/s10705-020-10109-2}, number={1}, journal={NUTRIENT CYCLING IN AGROECOSYSTEMS}, author={Gatiboni, Luciano Colpo and Schmitt, Djalma Eugenio and Tiecher, Tales and Veloso, Murilo G. and Santos, Danilo Rheinheimer and Kaminski, Joao and Brunetto, Gustavo}, year={2021}, month={Jan}, pages={139–151} }
 @article{ranieri_sponsel_kizer_rojas‐pierce_hernández_gatiboni_grunden_stapelmann_2021, title={Plasma agriculture: Review from the perspective of the plant and its ecosystem}, url={https://doi.org/10.1002/ppap.202000162}, DOI={10.1002/ppap.202000162}, abstractNote={Abstract}, journal={Plasma Processes and Polymers}, author={Ranieri, Pietro and Sponsel, Nicholas and Kizer, Jon and Rojas‐Pierce, Marcela and Hernández, Ricardo and Gatiboni, Luciano and Grunden, Amy and Stapelmann, Katharina}, year={2021}, month={Jan} }
 @article{mumbach_gatiboni_dall'orsoletta_schmitt_grando_souza junior_brignoli_iochims_2021, title={Refining phosphorus fertilizer recommendations based on buffering capacity of soils from southern Brazil}, volume={45}, ISSN={["0100-0683"]}, url={https://doi.org/10.36783/18069657rbcs20200113}, DOI={10.36783/18069657rbcs20200113}, abstractNote={ABSTRACT The phosphorus (P) rates recommended for corrective fertilization-P of soils from southern Brazil may be insufficient to reach the critical level for optimal plant growth. This study aimed to quantify the fertilizer-P rates for total correction fertilization with varying soil buffering capacity in the states of Rio Grande do Sul (RS) and Santa Catarina (SC). Soil samples from 0.00-0.10 and 0.10-0.20 m layers were collected from 41 locations distributed in both states. Twelve P rates were applied to each [...]}, journal={REVISTA BRASILEIRA DE CIENCIA DO SOLO}, author={Mumbach, Gilmar Luiz and Gatiboni, Luciano Colpo and Dall'Orsoletta, Daniel Joao and Schmitt, Djalma Eugenio and Grando, Douglas Luiz and Souza Junior, Abelino Anacleto and Brignoli, Fernando Marcos and Iochims, Daniel Alexandre}, year={2021} }
 @article{alves_tiecher_flores_filippi_gatiboni_bayer_pias_marquez_bordignon_goulart_et al._2021, title={Soil chemical properties and crop response to gypsum and limestone on a coarse-textured Ultisol under no-till in the Brazilian Pampa biome}, volume={25}, ISSN={["2352-0094"]}, DOI={10.1016/j.geodrs.2021.e00372}, abstractNote={Abstract The primary aim of this work was to assess the effect of rates of gypsum used alone and in combination with limestone on (a) soil nutrient contents and acidity, and (b) soybean and maize yields, on a subtropical coarse-textured Ultisol with a low cation exchange capacity (CEC) under no-tillage (NT). For this purpose, a field experiment using different rates of gypsum (0.0, 0.5, 1.0, 2.0 and 4.0 Mg ha−1) with or without limestone at 2.0 Mg ha−1 was started in August 2013. The experimental design was completely randomized blocks with three replications. The soil was sampled in five different layers (0–5, 5–10, 10–20, 20–40 and 40–60 cm) after 52 months, and crop yield was assessed in the seasons 2014/2015 and 2016/2017 for maize, and 2015/2016 and 2017/2018 for soybean. Surface application of limestone increased soil pH and base saturation in the 0–10 cm soil layer without exceeding the critical levels or having a significant effect on crop yield. Gypsum only altered the concentration of exchangeable Mg2+ in the soil, which decreased with increasing Ca2+/Mg2+ ratio in the subsurface layers as the amendment rate was increased. As a result, gypsum reduced maize yield in the first harvest after application, possibly by making the soil deficient in Mg2+, and the negative effects on microbial biomass. No similar effect was observed in the subsequent years. Applying gypsum to soils with low CEC and acidity in the subsurface layers not only fails to increase crop yield but also may induce Mg deficiency.}, journal={GEODERMA REGIONAL}, author={Alves, Lucas Aquino and Tiecher, Tadeu Luis and Flores, Joao Pedro Moro and Filippi, Dionata and Gatiboni, Luciano Colpo and Bayer, Cimelio and Pias, Osmar Henrique de Castro and Marquez, Antonio Augusto and Bordignon, Vinicio and Goulart, Rafael Ziani and et al.}, year={2021}, month={Jun} }
 @article{dall'orsoletta_gatiboni_mumbach_schmitt_boitt_smyth_2021, title={Soil slope and texture as factors of phosphorus exportation from pasture areas receiving pig slurry}, volume={761}, ISSN={["1879-1026"]}, DOI={10.1016/j.scitotenv.2020.144004}, abstractNote={Phosphorus (P) loss from agricultural areas to waterbodies is a worldwide concern. However, the effect of soil source and transport factors, such as clay (C) content and slope (S), on the magnitude of the P transport in Brazilian subtropical soils is still understudied. The objectives of this study were i) to quantify the loss of P fractions by runoff in areas receiving pig slurry application and with variations in S and C content; ii) propose an environmental critical limit model of P (P-threshold) for Brazilian subtropical soils. Thus, two series of experiments were conducted from 2016 to 2018, one under a Nitisol with 642 g kg−1 of C and another under a Cambisol with 225 g kg−1 of C. The treatments were four P rates (0, 56, 112 and 224 kg P ha−1 year−1) superficially applied as pig slurry, on Tifton (Cynodon sp) pasture, and three S (10, 20 and 30% in the Nitisol and 15, 25 and 35% in Cambisol). P losses increased in both soils as the S and P rates rose. The Nitisol showed P losses three times higher than the Cambisol. Soil S above 25% promotes P losses at a rate three times higher than in soil below this limit. Therefore, we propose a P-threshold model for Mehlich-1 extractable P levels for Brazilian subtropical soils as: “P-threshold = (42.287 + C) − (0.230 S + 0.0123 C S)” in soils with a S ≤ 25% and “P-threshold = (42.287 + C) − (−0.437 S + 0.039 C S)” in soils with a S >25%, where both C and S are shown in percentage. The soil clay content and slope are aggravating factors to the P transfer process, thus must be considered in suitable models to predict the P losses risk.}, journal={SCIENCE OF THE TOTAL ENVIRONMENT}, author={Dall'Orsoletta, D. J. and Gatiboni, L. C. and Mumbach, G. L. and Schmitt, D. E. and Boitt, G. and Smyth, T. J.}, year={2021}, month={Mar} }
 @article{mumbach_gatiboni_bona_schmitt_corrêa_gabriel_dall'orsoletta_iochims_2020, title={Agronomic efficiency of organomineral fertilizer in sequential grain crops in southern Brazil}, url={https://doi.org/10.1002/agj2.20238}, DOI={10.1002/agj2.20238}, abstractNote={The use of organomineral fertilizers in agriculture instead of mineral fertilizers is a way to add organic compounds to the soil, potentially improving its properties and crop production. Our objective was to evaluate the agronomic efficiency of an organomineral fertilizer manufactured from poultry litter and mineral fertilizers. The experiment was carried out in a Humic Cambisol in the subtropical region of Brazil, with high organic matter content, low phosphorus content, and very high potassium content. The study consisted of six treatments: mineral fertilizer (monoammonium phosphate, KCl}, journal={Agronomy Journal}, author={Mumbach, Gilmar L. and Gatiboni, Luciano C. and Bona, Fabiano D. and Schmitt, Djalma E. and Corrêa, Juliano C. and Gabriel, Camila A. and Dall'Orsoletta, Daniel J. and Iochims, Daniel A.}, year={2020}, month={Jul} }
 @article{gomes_stedille_milani_montibeller-silva_costa_gatiboni_mantovani_bortoluzzi_2020, title={Edaphic filters as abiotic drivers of Myrtaceae assemblages in subtropical Araucaria Forest}, volume={454}, ISSN={["1573-5036"]}, url={https://doi.org/10.1007/s11104-020-04645-7}, DOI={10.1007/s11104-020-04645-7}, number={1-2}, journal={PLANT AND SOIL}, publisher={Springer Science and Business Media LLC}, author={Gomes, Juliano Pereira and Stedille, Lilian Iara Bet and Milani, Jacanan Eloisa de Freitas and Montibeller-Silva, Karina and Costa, Newton Clovis Freitas and Gatiboni, Luciano Colpo and Mantovani, Adelar and Bortoluzzi, Roseli Lopes da Costa}, year={2020}, month={Sep}, pages={187–206} }
 @article{gatiboni_brunetto_pavinato_george_2020, title={Editorial: Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future}, volume={8}, ISSN={["2296-6463"]}, DOI={10.3389/feart.2020.619935}, abstractNote={Phosphorus (P) is an essential nutrient for higher plants and the primary source of this nutrient is from soil. However, many soils globally are P deficient and phosphate fertilizer input is necessary for agricultural production. Part of applied P is accumulated in the soil in non-labile forms due to its chemical high-affinity reactions and occlusion to soil minerals and organic matter, known as “legacy P.” Continued fertilizer applications beyond plant requirements have led to a build-up of legacy P in soils. Unfortunately, this imbalanced P input: output ratio is necessary in most cases to maintain satisfactory yields in conventional agricultural systems, ultimately promoting environmental concerns such as eutrophication, if transferred to water bodies. Moreover, as economically viable phosphate rock is finite and non-renewable, agricultural systems need to be redesigned for a better balance (input output) of P and postpone a future scarcity scenario. In this Research Topic we have collected contributions from North America, South America and Australasia, highlighting the impacts of legacy P on agricultural and environmental sustainability. Moreover, some agronomic approaches are described which have the potential to enable the use of legacy P more effectively and allow more accurate predictions on the ability to reduce legacy P on the environment, while maintaining sustainable production of crops.}, journal={FRONTIERS IN EARTH SCIENCE}, author={Gatiboni, Luke and Brunetto, Gustavo and Pavinato, Paulo S. and George, Timothy S.}, year={2020}, month={Nov} }
 @article{gatiboni_nicoloso_mumbach_souza junior_dall'orsoletta_schmitt_smyth_2020, title={Establishing environmental soil phosphorus thresholds to decreases the risk of losses to water in soils from Rio Grande do Sul, Brazil}, volume={44}, ISSN={["1806-9657"]}, url={https://doi.org/10.36783/18069657rbcs20200018}, DOI={10.36783/18069657rbcs20200018}, abstractNote={ABSTRACT The overloading of soil with manure or mineral fertilizers enhances phosphorus (P) availability, promoting its loss to water bodies and increasing the risk of eutrophication. In this sense, the establishment of an environmental P threshold is a simple and useful tool to classify soils regards its risk of P losses. Here we propose a P-threshold for soils from the state of Rio Grande do Sul (RS) in Brazil, with the soil clay content as the principal variable of the [...]}, journal={REVISTA BRASILEIRA DE CIENCIA DO SOLO}, author={Gatiboni, Luciano Colpo and Nicoloso, Rodrigo da Silveira and Mumbach, Gilmar Luiz and Souza Junior, Abelino Anacleto and Dall'Orsoletta, Daniel Joao and Schmitt, Djalma Eugenio and Smyth, Thomas Jot}, year={2020} }
 @article{souza kulmann_stefanello_arruda_sans_parcianello_hindersmann_pasquetti berghetti_araujo_gatiboni_brunetto_2020, title={Nitrogen supply methods affect the root growth dynamics in Eucalyptus grandis}, volume={473}, ISSN={["1872-7042"]}, DOI={10.1016/j.foreco.2020.118320}, abstractNote={Sandy soils presenting low organic matter levels do not provide enough N to meet Eucalyptus sp. demands. Nitrogen fertilizers can be applied to soil surface, although N losses tend to happen and to decrease the amounts of this component used by plants. Alternatively, N can be applied to planting pits at seedling transplantation time or to small holes dug close to the plants. However, aspects such as the impact of different N supply modes applied to the soil on the growth parameters of root systems and the way these supply modes can affect morphological and physiological parameters of the shoot remain poorly known. The aim of the current study is to assess shoot and root growth in Eucalyptus grandis trees grown in soil subjected to different N supply modes. Eucalyptus grandis clones (GPC 23) were subjected to three N supply modes, namely: control (without N application) (C), N application to soil surface (SN) and N application to the pit (PN). Plant height, stem diameter, N concentration and chlorophyll a fluorescence in leaves, morphological parameters of the root system (total root surface area and mean root diameter), total length of active roots and total number of living and dead roots were analyzed. The PN supply mode has led to the highest mineral N levels (NH4+ and NO3−) in the soil, as well as increased the total length of active roots, the number of living roots and the root surface area in soil layers 20–40 cm and 40–60 cm. This process has enabled greater N uptake by plants, which, in its turn, has increased N concentrations in leaves, favored photosynthetic processes and resulted in taller plants presenting greater stem diameter. The SN supply method did not increase the mineral N in the soil, and it restricted the total length of active roots in soil layer (0–20 cm) and resulted in higher mean root diameter.}, journal={FOREST ECOLOGY AND MANAGEMENT}, author={Souza Kulmann, Matheus Severo and Stefanello, Lincon Oliveira and Arruda, Wagner Squizani and Sans, Gabriel Alberto and Parcianello, Carolina Fogliarini and Hindersmann, Jacson and Pasquetti Berghetti, Alvaro Luis and Araujo, Maristela Machado and Gatiboni, Luciano Colpo and Brunetto, Gustavo}, year={2020}, month={Oct} }
 @article{mumbach_gatiboni_dall'orsoletta_schmitt_pessotto_oliveira_2020, title={Phosphorus Extraction with Soil Test Methods Affected by Soil P Sorption Capacity}, volume={20}, ISSN={["0718-9516"]}, DOI={10.1007/s42729-020-00259-1}, number={4}, journal={JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION}, author={Mumbach, Gilmar Luiz and Gatiboni, Luciano Colpo and Dall'Orsoletta, Daniel Joao and Schmitt, Djalma Eugenio and Pessotto, Patricia Pretto and Oliveira, Clovisson Menotti}, year={2020}, month={Dec}, pages={1882–1890} }
 @article{abdala_gatiboni_schmitt_mumbach_dall'orsoletta_bonfada_veiga_2020, title={Phosphorus speciation and iron mineralogy in an oxisol after 11 years of pig slurry application}, volume={743}, ISSN={["1879-1026"]}, DOI={10.1016/j.scitotenv.2020.140487}, abstractNote={Application of phosphate fertilizers beyond plants needs favors phosphorus (P) accumulation in soils, which may alter its reactivity and chemical speciation. The objective of this study was to assess the changes in P speciation in a Brazilian oxisol that received consecutive applications of varying rates of pig slurry (PS) over 11 years. The soils were treated with PS at rates of 50, 100 and 200 m3 ha−1 year−1, whereas a control plot received P and potassium (K) to replenish the amounts removed by harvest. The soils were sampled and characterized for its P sorption capacity (PSC) as determined by Langmuir sorption isotherms, P partitioning by sequential chemical fractionation (SCF), P chemical speciation via P K-edge XANES and iron (Fe) mineralogy via Fe K-edge EXAFS spectroscopies. Increases in applied PS rates were accompanied by increases in PSC at the 0 to 2.5 and 0 to 10 cm soil layers. P accumulation was observed to be restricted up to the depth of 20 cm, regardless of the PS rate applied. The P K-edge XANES analysis indicated that P accumulation in the topmost soil layers, occurred predominantly associated with Fe-(hydr)oxide minerals. In this soil layer (0 to 2.5 cm), the organic P pool was of particular importance likely due to no-tillage. A dramatic change in Fe mineralogy in the topmost soil layer was observed across the studied soils, with the predominance of hematite in the reference soil and in the control plot, whereas the occurrence of goethite and ferrihydrite was followed by the application of PS.}, journal={SCIENCE OF THE TOTAL ENVIRONMENT}, author={Abdala, D. B. and Gatiboni, L. C. and Schmitt, D. E. and Mumbach, G. L. and Dall'Orsoletta, D. J. and Bonfada, E. B. and Veiga, M.}, year={2020}, month={Nov} }
 @article{gatiboni_da silva_mumbach_schmitt_iochims_stahl_vargas_2020, title={Use of exchangeable and nonexchangeable forms of calcium, magnesium, and potassium in soils without fertilization after successive cultivations with Pinus taeda in southern Brazil}, volume={20}, ISSN={["1614-7480"]}, DOI={10.1007/s11368-019-02460-x}, number={2}, journal={JOURNAL OF SOILS AND SEDIMENTS}, author={Gatiboni, Luciano Colpo and Da Silva, Walquiria Chaves and Mumbach, Gilmar Luiz and Schmitt, Djalma Eugenio and Iochims, Daniel Alexandre and Stahl, James and Vargas, Cristiane Ottes}, year={2020}, month={Feb}, pages={665–674} }
 @article{schmitt_gatiboni_heidemann_dall’orsoletta_boitt_brunetto_2019, title={Phosphorus fractions in soil cultivated with vineyards after 62 years of poultry litter addition}, volume={54}, url={https://doi.org/10.1590/s1678-3921.pab2019.v54.00817}, DOI={10.1590/s1678-3921.pab2019.v54.00817}, abstractNote={Abstract: The objective of this work was to evaluate changes in phosphorus fractions in a Humic Cambisol cultivated with vineyards, after 62 years of additional fertilization with poultry litter. Soil samples were collected from two vineyards (V1 and V2) and a forested area adjacent to them. A total of 1,365 and 910 kg ha-1 P were applied to V1 and V2, respectively, throughout the past 62 years. Samples were collected at 0-10, 10-20, 20-30, and 30-40-cm soil depths for the analysis of soil physicochemical properties. The addition of poultry litter to the soil of the vineyards increased the contents of inorganic P (Pi) in all fractions, except in the residual fraction (residual-P), mainly at the 0-10-cm soil depth, in comparison with the forested area. The addition of poultry litter as fertilizer does not affect the organic P (Po) stock in the Humic Cambisol, it only increases the Pi contents of the soil.}, journal={Pesquisa Agropecuária Brasileira}, publisher={FapUNIFESP (SciELO)}, author={Schmitt, Djalma Eugênio and Gatiboni, Luciano Colpo and Heidemann, Joice Crescêncio and Dall’Orsoletta, Daniel João and Boitt, Gustavo and Brunetto, Gustavo}, year={2019} }
 @article{gatiboni_schmitt_cassol_comin_heidemann_brunetto_silveira nicoloso_2019, title={Samples disturbance overestimates phosphorus adsorption capacity in soils under long-term application of pig slurry}, volume={65}, url={https://doi.org/10.1080/03650340.2018.1562274}, DOI={10.1080/03650340.2018.1562274}, abstractNote={ABSTRACT Grinding soil for analysis causes the destruction of aggregates and may expose adsorption sites that would not be available for adsorption in the soil with preserved structure. The study aimed to evaluate the adsorption of P in three soils with and without preserved structure, submitted to pig slurry (PS) application for a long time. Three soils (Acrisol, Ferralssol and Nitisol) with contrasting textures and P contents, with and without PS were selected and samples were collected with and without preserved structure in the 0–10 and 10–20 cm layers. The undisturbed soil columns were submitted to continuous flow, for 10–24 h, of 300 mg L−1 P solution and, at regular intervals, aliquots of the resulting solution were collected and the P content was determined. These data were adjusted exponential models to estimate the maximum adsorption of P. The maximum capacity of P adsorption of the soils were 1.4 to 14 times higher in the milled soil samples, making it clear that the destruction of the soil structure, and consequently the porosity and the preferential paths of percolation of the liquids in the soil leads to an overestimation of the soil capacity to adsorb the P applied to the surface.}, number={9}, journal={Archives of Agronomy and Soil Science}, publisher={Informa UK Limited}, author={Gatiboni, Luciano Colpo and Schmitt, Djalma Eugênio and Cassol, Paulo Cezar and Comin, Jucinei José and Heidemann, Joice Crescêncio and Brunetto, Gustavo and Silveira Nicoloso, Rodrigo}, year={2019}, month={Jul}, pages={1262–1272} }
 @article{predebon_gatiboni_mumbach_schmitt_dall’orsoletta_brunetto_2018, title={Accuracy of methods to estimate potential acidity and lime requirement in soils of west region of Santa Catarina}, volume={48}, url={https://doi.org/10.1590/0103-8478cr20160935}, DOI={10.1590/0103-8478cr20160935}, abstractNote={portuguesO estudo objetivou comparar dois metodos de avaliacao de acidez potencial (H+Al) e de estimativa da necessidade de calagem (NC) para solos da regiao Oeste de Santa Catarina (SC). Quatorze solos foram incubados com 7 doses de calcario durante 120 dias, obtendo-se ao final os valores reais de H+Al a pH 7,0 e a NC dos solos. Esses valores serviram de referencia para avaliar a exatidao dos metodos de estimativa do H+Al: tampao SMP e acetato de calcio a pH 7,0 e a exatidao dos metodos de estimativa da NC: indice SMP e saturacao por bases (V%). Em media, o H+Al foi subestimado em 6 e 40% pelos metodos SMP e acetato de calcio, respectivamente, sendo mais problematico nos solos de maior tamponamento. Ja a NC foi subestimada em 20 e 30% pelo Indice SMP e V%, respectivamente. O indice SMP estimou melhor a NC que o metodo V%, principalmente em solos de maior tamponamento. Palavras-chave: SMP; acetato de calcio; saturacao por bases; calagem EnglishThe objective of this study was to compare two methods of evaluation of potencial acidity (H+Al) and two methods to estimate liming requirement (LR) for soils from the west region of Santa Catarina State, Brazil. Fourteen soils were incubated with 7 lime rates for 120 days, obtaining the real values of H+Al at pH 7.0 and LR. These values were used as reference to evaluate the accuracy of two H+Al estimating methods: SMP buffer and calcium acetate at pH 7.0, and to evaluate the accuracy of two LR methods: base saturation (BS) and SMP index. On average, H+Al was underestimated in 6 and 40% by SMP and calcium acetate methods, respectively, especially in soils with high buffer capacity. The LR was underestimated in 20 and 30% by SMP index and BS, respectively. The SMP Index showed a better LR estimative than BS, especially in soils with high buffer capacity. Key words: SMP; calcium acetate; base saturation; liming}, number={4}, journal={Ciência Rural}, publisher={FapUNIFESP (SciELO)}, author={Predebon, Rodrigo and Gatiboni, Luciano Colpo and Mumbach, Gilmar Luiz and Schmitt, Djalma Eugenio and Dall’Orsoletta, Daniel João and Brunetto, Gustavo}, year={2018}, month={Apr} }
 @article{brunetto_comin_miotto_moraes_sete_schmitt_gatiboni_melo_morais_2018, title={Copper and zinc accumulation, fractionation and migration in vineyard soils from Santa Catarina State, Brazil}, volume={77}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85041708009&partnerID=MN8TOARS}, DOI={10.1590/1678-4499.2016391}, abstractNote={The purpose of this study was to evaluate Cu and Zn migration and fractions in sandy soil of vineyards. In Urussanga (SC), Brazil, soil samples were collected from a 4-year-old and 15-yearold vineyard, and from a forested area. In the soils, the chemical characteristics of Cu and Zn were analyzed by the EDTA method, which determines the fraction available in soil; 3050B method of the USEPA for total concentrations, which represents the pseudosoil contents in the soil; and chemical fractionation, which estimates soluble fraction, exchangeable fraction, fraction associated with clay minerals, fraction associated with organic matter and residual fraction. The results show that there is accumulation of Cu and Zn in sandy soils cultivated with grapevines and with frequent fungicide applications. These higher levels were found in soils with longer cultivation time (15 years old), but were restricted to the superficial layers of the soil. Most of the Cu was extracted by EDTA method, and it may be considered as available to plants. The EDTA also extracted a small part of Zn. Most of the Cu in the vineyard soils can be characterized by low geochemical mobility, but in the uppermost soil layers of the oldest vineyard, there was an increase in Cu content associated with soil organic matter. Most of the Zn in the vineyard soil was associated with minerals, which indicates low mobility and also low potential for toxicity to plants and microorganisms. Key words: availability, chemical fractionation, toxicity, environmental contamination, Vitisvinifera.}, number={1}, journal={Bragantia}, author={Brunetto, G. and Comin, J.J. and Miotto, A. and Moraes, M.P. and Sete, P.B. and Schmitt, D.E. and Gatiboni, L.C. and Melo, G.W.B. and Morais, G.P.}, year={2018}, pages={141–151} }
 @article{dall’orsoletta_gatiboni_schmitt_arruda_heidemann_2018, title={Do enzyme inhibitors dicyandiamide and NBPT influence the microbial immobilization of phosphorus in Humic Cambisol?}, volume={22}, url={https://doi.org/10.1590/1807-1929/agriambi.v22n11p788-792}, DOI={10.1590/1807-1929/agriambi.v22n11p788-792}, abstractNote={ABSTRACT The application of nitrogen fertilizers, both organic and mineral, can cause nitrate losses by leaching. To minimize this effect, enzyme inhibitors are used. However, the effects on microbial biomass, which is the most sensitive and dynamic compartment of nutrients in the soil, as well as its effect on nutrients such as phosphorus (P) are unknown. This study aimed to evaluate the influence of the enzyme inhibitor (EI) on soil microbial phosphorus (Pm) when mineral fertilizer (NPK) or liquid swine manure (LSM) was applied in corn cultivation. The experiment was installed in a Humic Cambisol in Lages – SC, Brazil (27° 47’ 08” S; 50° 18’ 09” W) in the 2012/2013 season. The treatments consisted of: i) NPK; ii) NPK + EI; iii) LSM; iv) LSM + EI, applied before sowing of corn, and v) control (without application of fertilizer and enzyme inhibitor) arranged in a randomized block design, under no-tillage system. Soil samples were collected from the 0-0.10 m layer at 0, 10, 25, 58, 90, 135 and 202 days after application of the treatments. The Pm content was not affected by the enzyme inhibitor application but was influenced throughout the crop cycle in response to water balance and corn cultivation.}, number={11}, journal={Revista Brasileira de Engenharia Agrícola e Ambiental}, publisher={FapUNIFESP (SciELO)}, author={Dall’Orsoletta, Daniel J. and Gatiboni, Luciano C. and Schmitt, Djalma E. and Arruda, Bruna and Heidemann, Joice C.}, year={2018}, month={Nov}, pages={788–792} }
 @article{boitt_schmitt_gatiboni_wakelin_black_sacomori_cassol_condron_2018, title={Fate of phosphorus applied to soil in pig slurry under cropping in southern Brazil}, volume={321}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85041931194&partnerID=MN8TOARS}, DOI={10.1016/j.geoderma.2018.02.010}, abstractNote={Strongly weathered soils (such as Oxisols), are inherently phosphorus (P) limiting and highly P-sorptive thus requiring continued P inputs for productive agriculture. Constant P inputs result in accumulation of soil P with increasing risk of eutrophication of waterways. The state of Santa Catarina is the largest pork producer in Brazil. Production is concentrated in confined systems, with large generation of nutrient rich waste, commonly utilised as fertiliser. The objective of this work was to investigate and quantify the impact of long-term P inputs in pig slurry to a high P-sorbing Oxisol under cropping in southern Brazil. Fifteen years of pig-slurry addition resulted in P accumulation and vertical movement down the soil profile in proportion to application rates, but significant effects were confined to the 0–20 cm soil layer. Phosphorus accumulated mainly in inorganic forms. Slurry input rates of 25, 50, 100, and 200 m3 ha−1 y−1 resulted in accumulations of 25, 57, 106, and 159 kg P ha−1 y−1 (0–40 cm), of which only 8, 10, 23, and 28 kg P ha−1 y−1 were organic P forms. Mass balance showed that between 62 and 94% of the P inputs in slurry were accounted for in grain exports (7–35%), soil storage (58–83%), minimal amounts were estimated in crop residues (<1%), while the remainder (6–38%) was presumed to have been lost in drainage by overland flow.}, journal={Geoderma}, author={Boitt, G. and Schmitt, D.E. and Gatiboni, L.C. and Wakelin, S.A. and Black, A. and Sacomori, W. and Cassol, P.C. and Condron, L.M.}, year={2018}, pages={164–172} }
 @article{schmitt_gatiboni_orsoletta_brunetto_2018, title={Formation of ternary organic acids-Fe-P complexes on the growth of wheat (Triticum aestivum)}, url={https://doi.org/10.1590/1807-1929/agriambi.v22n10p702-706}, DOI={10.1590/1807-1929/agriambi.v22n10p702-706}, abstractNote={ABSTRACT Phosphorus (P) reacts with chemical and mineralogical constituents in the soil, mainly in tropical and subtropical soils. Therefore, strategies have been used to reduce the adsorption of P to the soil, among them, the formation of complexes that could decrease P adsorption to the soil. Two experiments were carried out to evaluate the formation of organic acid-Fe-P complexes in the laboratory and the efficiency of these complexes on the growth of wheat plants (T. aestivum) grown under greenhouse conditions. In experiment 1, seven low-molecular-weight organic acids (OA) were selected and a protocol for the formation of complexes between organic acid and Fe3+ at pH 4.0 was performed. After stirring, P was added to the organic acid-Fe complex to form the ternary complex. The remaining P was evaluated to determine the amount of P in the complex. In experiment 2, the three OAs which had the largest amount of complexes were selected, together with a treatment with soluble P and a control. Wheat was grown in potted soil in a greenhouse for 34 days. The amount of ternary organic acid-Fe-P complexes formed varied from 5 to 42% of the added P. However, when these complexes were added to the soil, in treatments with greater amount of complex formed there was lower growth of wheat. Thus, the ternary complex with organic acid-Fe-P has little effect on the performance of wheat plants.}, journal={Revista Brasileira de Engenharia Agrícola e Ambiental}, author={Schmitt, Djalma E. and Gatiboni, Luciano C. and Orsoletta, Daniel J. D. and Brunetto, Gustavo}, year={2018}, month={Oct} }
 @article{brunetto_oliveira_ambrosini_rosa couto_sete_santos junior_loss_silva_gatiboni_2018, title={Nitrogen availability in an apple orchard with weed management}, volume={48}, url={https://doi.org/10.1590/0103-8478cr20160895}, DOI={10.1590/0103-8478cr20160895}, abstractNote={EnglishWeed management in apple orchards (Malus domestica) can affect the leaching of nitrogen (N) in soil. The study aimed to evaluate the potential leaching of N forms in soil of an apple orchard with different weed management treatments. The experiment was conducted in an apple orchard implanted in 2008. In October 2011, 80 plants were selected and the following treatments were implemented: no weed management (NM), desiccation of weeds on the tree row with herbicide use (DR) and mechanical mowing of weeds on the tree row (MR). Yield was evaluated in the 2011/2012, 2012/2013 and 2013/2014 crop seasons. In May 2012 porous cup lysimeters were installed in the NM, DR and MR treatments. In the solution collected at 0.20m, NH4 +-N and NO3 --N were analyzed sixteen times and mineral N concentration was calculated. The highest concentrations of NO3 --N and mineral N occurred in soil solution with DR, which increases availability of the nutrient to apple trees, but also enhances the potential losses. Weed management and N flow in the solution did not affect apple yield. Key words: mineral N; nitrate; ammonia; Malus domestica portuguesO manejo de plantas espontâneas em pomares de macieira (Malus domestica) pode afetar a lixiviacao de nitrogenio (N) do solo. O trabalho objetivou avaliar a lixiviacao de formas de N em solo sob pomar de macieiras com diferentes manejos de plantas espontâneas. O experimento foi conduzido em um pomar de macieira implantado em 2008. Em outubro de 2011, foram selecionadas 80 plantas e implantados os tratamentos: sem manejo das plantas espontâneas (SM); dessecamento das plantas espontâneas na linha de plantio com uso de herbicidas (DL) e rocada mecânica das plantas espontâneas na linha de plantio (RL). Nas safras 2011/2012, 2012/2013 e 2013/2014 foi avaliada a produtividade. Em maio de 2012 foram instalados lisimetros com capsula porosa nos tratamentos SM, DL e RL; e na solucao coletada a 0,20m em dezesseis epocas foram analisados NH4 +-N e NO3 --N, e calculado o teor de N-mineral. Os maiores teores de NO3 --N e mineral-N ocorreram na solucao no solo com DL, o que aumenta a disponibilidade do nutriente as macieiras, mas tambem potencializa as perdas. O manejo de plantas espontâneas e o fluxo de N na solucao nao afetaram a produtividade de maca. Palavras-chave: perda de N; nitrato; amonio; Malus domestica}, number={5}, journal={Ciência Rural}, publisher={FapUNIFESP (SciELO)}, author={Brunetto, Gustavo and Oliveira, Bruno Salvador and Ambrosini, Vítor Gabriel and Rosa Couto, Rafael and Sete, Paula Beatriz and Santos Junior, Elano and Loss, Arcângelo and Silva, Lincon Oliveira Stefanello and Gatiboni, Luciano Colpo}, year={2018}, month={May} }
 @article{arruda_dall’orsoletta_heidemann_gatiboni_2018, title={Phosphorus dynamics in the rhizosphere of two wheat cultivars in a soil with high organic matter content}, volume={64}, url={https://doi.org/10.1080/03650340.2017.1407028}, DOI={10.1080/03650340.2017.1407028}, abstractNote={ABSTRACT Soil organic matter (SOM) is a key of most nutrient cycling and its content influences labile phosphorus (P) pool. In order to promote P availability from SOM, some plant strategies could be important to increase organic P mineralization, which may change among cultivars of the same crop. This study evaluated phosphorus dynamics in the rhizosphere of two wheat cultivars in soil with high organic matter content. Experiment was established in a greenhouse using a Humic Cambisol in a randomized block design using Quartzo and Abalone as wheat cultivars and harvested 20 days after seedling. Pots with a horizontal mesh (25 µm) were used to isolate the soil from roots. At harvest, the soil under the mesh was sliced in five distances from the rhizoplane (0–3; 3–6; 6–10; 10–20; 20–30 mm). Organic P was the buffer to maintain P dynamics in the rhizosphere and there was phosphorus depletion in the first slice near the rhizoplane due to the root effect, regardless the cultivar. Quartzo showed high labile inorganic P, presumably due to the high amount of root hairs, which increased the acid phosphatase activity and consequently root P uptake. Quartzo was more efficient in changing rhizosphere regarding the P acquisition.}, number={7}, journal={Archives of Agronomy and Soil Science}, publisher={Informa UK Limited}, author={Arruda, Bruna and Dall’orsoletta, Daniel João and Heidemann, Joice Crescencio and Gatiboni, Luciano Colpo}, year={2018}, month={Jun}, pages={1011–1020} }
 @article{withers_rodrigues_soltangheisi_de carvalho_guilherme_benites_gatiboni_de sousa_nunes_rosolem_et al._2018, title={Transitions to sustainable management of phosphorus in Brazilian agriculture}, volume={8}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85041665400&partnerID=MN8TOARS}, DOI={10.1038/s41598-018-20887-z}, abstractNote={Brazil's large land base is important for global food security but its high dependency on inorganic phosphorus (P) fertilizer for crop production (2.2 Tg rising up to 4.6 Tg in 2050) is not a sustainable use of a critical and price-volatile resource. A new strategic analysis of current and future P demand/supply concluded that the nation's secondary P resources which are produced annually (e.g. livestock manures, sugarcane processing residues) could potentially provide up to 20% of crop P demand by 2050 with further investment in P recovery technologies. However, the much larger legacy stores of secondary P in the soil (30 Tg in 2016 worth over $40 billion and rising to 105 Tg by 2050) could provide a more important buffer against future P scarcity or sudden P price fluctuations, and enable a transition to more sustainable P input strategies that could reduce current annual P surpluses by 65%. In the longer-term, farming systems in Brazil should be redesigned to operate profitably but more sustainably under lower soil P fertility thresholds.}, number={1}, journal={Scientific Reports}, author={Withers, P.J.A. and Rodrigues, M. and Soltangheisi, A. and De Carvalho, T.S. and Guilherme, L.R.G. and Benites, V.D.M. and Gatiboni, L.C. and De Sousa, D.M.G. and Nunes, R.D.S. and Rosolem, C.A. and et al.}, year={2018} }
 @article{rosa couto_martini_gatiboni_filho_martins_lazzari_júnior_comin_withers_schenato_et al._2018, title={Vulnerability to contamination by phosphorus in a zero-order basin with a high density of pigs and a history of slurry addition: extrapolation of an index}, volume={77}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85042328324&partnerID=MN8TOARS}, DOI={10.1007/s12665-018-7301-1}, number={4}, journal={Environmental Earth Sciences}, author={Rosa Couto, R. and Martini, L.C.P. and Gatiboni, L.C. and Filho, P.B. and Martins, S.R. and Lazzari, C.J.R. and Júnior, V.M. and Comin, J.J. and Withers, P.J.A. and Schenato, R.B. and et al.}, year={2018} }
 @article{ammonia volatilization with swine slurry injection and use of nitrification inhibitor_2017, volume={64}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85023208208&partnerID=MN8TOARS}, DOI={10.1590/0034-737X201764030012}, abstractNote={The injection of nitrogen sources into the soil and use of nitrification inhibitor can improve the efficiency of applied nitrogen and minimize losses to the environment. The objective of this study was to evaluate the effect of swine slurry (SS) and urea in two modes of application in the soil (injected and surface), and the use of nitrification inhibitor on NH3 volatilization in a controlled environment, upon varying soil texture and soil pH conditions. The experiment was conducted under controlled conditions, or a Rhodic Kandiudox and Typic Hapludult soil in a completely randomized design in a 4 x 2 x 2 x 2 factorial design with three replications. The study evaluated four fertilizers (urea, SS, SS +nitrification inhibitor (dicyandiamide-DCD) and control), two pH conditions (natural and limed) and two forms of fertilizer application (injected and surface), and two soils. The SS rate used was 21 m3 ha-1, and the rate of the inhibitor was 10 kg ha-1. The evaluations consisted in daily accumulated ammonia volatilization up to 14 days, and the percentage of soil nitrogen loss. The injection of fertilizers reduced emissions of ammonia in both soils and, limed soil had higher N losses by volatilization. The inhibitor did not increase the emission of ammonia in both soils.}, number={3}, journal={Revista Ceres}, year={2017}, pages={307–314} }
 @article{dias_gatiboni_miquelutti_brunetto_campos_2017, title={Boron in preventing of shoot dieback on eucalyptus benthamii grown in soil with different water regimes}, volume={18}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85031824252&partnerID=MN8TOARS}, number={3}, journal={Scientia Agraria}, author={Dias, L.P.R. and Gatiboni, L.C. and Miquelutti, D.J. and Brunetto, G. and Campos, D.J.P.}, year={2017}, pages={37–43} }
 @article{tiecher_tiecher_mallmann_zafar_ceretta_lourenzi_brunetto_gatiboni_santos_2017, title={Chemical, biological, and biochemical parameters of the soil P cycle after Long-Term pig slurry application in No-Tillage system}, volume={41}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85033691273&partnerID=MN8TOARS}, DOI={10.1590/18069657rbcs20170037}, abstractNote={ABSTRACT In Southern Brazil, agricultural soils are often treated over long periods with annual pig slurry (PS) applications, and their influence on soil nutrient dynamics should be monitored. This study aimed to evaluate the P forms accumulated in the soil and some biological and biochemical parameters of the P cycle after 19 successive PS applications over eight years, in a no-tillage (NT) system. Pig slurry was applied at rates of 0, 20, 40, and 80 m3 ha-1 per crop. Several [...]}, journal={Revista Brasileira de Ciencia do Solo}, author={Tiecher, T. and Tiecher, T.L. and Mallmann, F.J.K. and Zafar, M. and Ceretta, C.A. and Lourenzi, C.R. and Brunetto, G. and Gatiboni, L.C. and Santos, D.R.}, year={2017} }
 @article{pértile_albuquerque_gatiboni_costa_luciano_2017, title={Corrective Potential of Alkaline Residue (Dregs) from Cellulose Industry in an Acid Soil Cultivated Under No-tillage}, volume={48}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85038097843&partnerID=MN8TOARS}, DOI={10.1080/00103624.2017.1407427}, abstractNote={ABSTRACT The use of alkaline residues from cellulose industry can increase soil fertility and crop productivity, but some of these residues, such as dregs, can also reduce soil physical quality. This study aimed to evaluate the effects of the dregs compared to lime as corrective for soil acidity applied on the surface under no-tillage. The treatments applied, half in 2004 and half in 2006, were: without corrective; dregs rates of 3.25, 6.5 and 13 Mg ha−1 and dolomitic lime rates of 5.25 and 10.5 Mg ha−1. After 5.5 years since the first application, soil chemical and physical attributes were determined, as well as soybean yield in 2010 and bean yield in 2011. Positive effects were observed on the soil chemical attributes with the application of dregs or lime, such as increased pH, calcium content, cation exchange capacity, and base saturation, and decreased the aluminum saturation. However, it was observed increase in sodium content and calcium/magnesium ratio with the application of dregs, however without impairing the soil physical quality. The soybean and bean yield increased in a similar way using dregs or lime. These results indicate the possibility of using dregs as corrective of soil acidity.}, number={16}, journal={Communications in Soil Science and Plant Analysis}, publisher={Informa UK Limited}, author={Pértile, Patricia and Albuquerque, Jackson Adriano and Gatiboni, Luciano Colpo and Costa, André and Luciano, Rodrigo Vieira}, year={2017}, pages={1868–1880} }
 @article{dias_gatiboni_brunetto_arruda_costa_2017, title={Distribution and morphology of root system of Eucalyptus dunnii in response to phosphorus fertilization,Distribuicaõ e morfologia do sistema radicular de Eucalyptus dunnii em resposta à aplicacaõ de fósforo}, volume={16}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85035007121&partnerID=MN8TOARS}, DOI={10.5965/223811711632017203}, abstractNote={use of soluble phosphates and rock phosphates is a normal practice in Eucalyptus fertilization. As the phosphorus fertilizer is located near the plant, phosphorus (P) may interfere with the growth and morphology of the root system. The objective of this work was to evaluate the growth and morphological characteristics of root system of Eucalyptus dunnii using soluble and rock phosphate. Samples were collected in 2013 from an experiment established in 2010 in the city of Otacilio Costa, SC. Samples were collected from four treatments: 1) control without P; 2) fertilization with 60 kg ha-1 of P2O5 in the form of phosphate rock; 3) 75 kg ha-1 of P2O5 in the form of triple superphosphate and; 4) 60 kg ha-1 rock phosphate P2O5 plus 75 kg ha-1 P2O5 soluble phosphate (these doses being chosen because it represents the usual practice in the reforestation of the region). The collection of roots occurred 28 months after planting of the seedlings and application of treatment with a 40 mm in diameter and 100 mm high probe. The soil and root samples were collected at three distances from the shaft (10, 60 and 120 cm) and two layers (0-10 and 10-20 cm). The roots were separated in two diameter classes: 0 to 2 mm and 2 to 5 mm. Dry matter of roots were characterized, root radius, length, volume and root area. Rock phosphate did not stimulate root growth and the soluble phosphate was the source that improved growth and development of fine roots in Eucalyptus dunnii, with the highest concentration of these roots being located near the shaft and in the most superficial layer of soil.}, number={3}, journal={Revista de Ciencias Agroveterinarias}, author={DIas, L.P.R. and Gatiboni, L.C. and Brunetto, G. and Arruda, B. and Costa, M.M.}, year={2017}, pages={203–213} }
 @article{piccin_kaminski_ceretta_tiecher_gatiboni_bellinaso_marchezan_souza_brunetto_2017, title={Distribution and redistribution of phosphorus forms in grapevines}, volume={218}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85013042353&partnerID=MN8TOARS}, DOI={10.1016/j.scienta.2017.02.023}, abstractNote={Increased phosphorus (P) available in soil can modify the partitioning of P forms in annual and perennial organs of grapevines throughout the growing season. This study was to evaluate the distribution and redistribution of P forms in organs of grapevines grown in soils with different contents of available P. The study was conducted in two vineyards installed in the city of Santana do Livramento, state of Rio Grande do Sul (RS), in southern Brazil. The treatments were vineyard 1 (V1) with 11.8 mg kg−1 of available P in soil and vineyard 2 (V2) with 34.6 mg kg−1. The cultivar of both vineyards is Tannat (Vitis vinifera L.) grafted on SO4 (Vitis berlandieri × Vitis riparia) rootstock. Plant density per hectare was 2525 (1.2 m × 3.2 m) on a spur pruned cordon system. The grapevines were uprooted and partitioned into roots, trunks, arms, spurs, new-year shoots, leaves and clusters (when present) at flowering (F), veraison (V), harvest (H) and dormancy (D). The organs were dried, prepared and subjected to chemical fractionation of P, to estimate fractions of total acid-soluble P (PST), acid-soluble inorganic P (PSI), acid-soluble organic P (PSO) (by difference between TSP and PSI), phospholipids P (PLIP), P associated with RNA (PRNA), P associated with DNA (PDNA) and residual P (PRES). P in grapevines of V1 and V2 accumulated mainly in the PSI fraction in leaves and clusters, which was collected at F, V and H, and in PSO fraction in roots, collected at D. Part of the root PSI was redistributed at F to the leaves and clusters in vines of V1. Vines grown in V2 accumulated more P in PSO form in roots and tended to redistribute less PSI to the leaves and clusters after F. Grapevines accumulated P in roots, both in soils with low and high available P contents, and P was subsequently redistributed and accumulated in leaves and clusters in inorganic form.}, journal={Scientia Horticulturae}, author={Piccin, R. and Kaminski, J. and Ceretta, C.A. and Tiecher, T. and Gatiboni, L.C. and Bellinaso, R.J.S. and Marchezan, C. and Souza, R.O.S.D. and Brunetto, G.}, year={2017}, pages={125–131} }
 @article{de freitas alves_cassol_sacomori_gatiboni_ernani_aita_panisson_ferreira_2017, title={Influence of fertilization with swine manure and mineral fertilizer added by nitrification inhibitor on corn yield and nutrition,Influéncia da adubação com dejeto suíno e adubo mineral adicionada de inibidor de nitrificação sobre a produtividade e a nutrição do milho}, volume={16}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85029900705&partnerID=MN8TOARS}, DOI={10.5965/223811711612017002}, abstractNote={Swine production in Santa Catarina is remarkable because of both the large number of animals as well as the high volume of swine slurry (DLS) generated. The DLS has fertilizer value, but its excessive or improper use can pollute surface and groundwater as well as contribute to the emission of greenhouse gases. An experiment was carried out in the Santa Catarina plateau to evaluate the incorporation into the soil and the addition of nitrification inhibitor as ways to increase the efficiency of DLS and mineral fertilizer (NPK) as sources of nitrogen (N) and other nutrients for corn. The treatments were the DLS and NPK fertilizers, the presence and absence of dicyandiamide (DCD), a control and the surface (Sup) or incorporated (Inc) applications and were arranged in a randomized block design with split plots and four replicates. The incorporation of fertilizer increased the N content in leaves, shoot dry matter and grain yields and the accumulation of N and K in the dry matter and P in corn grain. The DCD in general did not affect grain yield, except in superficial application of the DLS where their presence increased the yield compared to its absence. The DLS and mineral NPK fertilizers have similar efficiency that increases with incorporation into the soil compared to the surface application.}, number={1}, journal={Revista de Ciencias Agroveterinarias}, author={De Freitas Alves, C.T. and Cassol, P.C. and Sacomori, W. and Gatiboni, L.C. and Ernani, P.R. and Aita, C. and Panisson, J. and Ferreira, A.K.T.}, year={2017}, pages={2–10} }
 @article{piccin_couto_bellinaso_gatiboni_de conti_rodrigues_somavilla_kulmann_brunetto_2017, title={Phosphorus forms in leaves and their relationships with must composition and yield in grapevines}, volume={52}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85021711550&partnerID=MN8TOARS}, DOI={10.1590/S0100-204X2017000500005}, abstractNote={The objective of this work was to evaluate phosphorus forms in grape leaves and their relationships with must composition and yield in grapevines grown in a Typic Hapludalf with different available P contents. Two experiments were carried out with Vitis vinifera cultivars, one with 'Tannat' and the other with 'Cabernet Franc' grapes. Experiment 1 consisted of two vineyards of 'Tannat', with the following P content in the soil: V1, 11.8 mg kg -1  P; and V2, 34.6 mg kg -1 P. Experiment 2 consisted of two vineyards of 'Cabernet Franc', with the following P content in the soil: V1, 16.0 mg kg -1 P; and V2, 37.0 mg kg -1 P. Leaves were collected at flowering (FL) and veraison (V), and, after their preparation, P forms were evaluated. Yield and must composition were assessed. The highest yield was observed in V2 of experiment 1 and in V2 of experiment 2. Total P content and P forms in leaves at FL and V have no relationship with yield parameters; however, total P content in leaves has a relationship with anthocyanin content in the must of 'Tannat' grapevines. Therefore, P fractionation in leaves predicts neither grapevine yield nor must composition.}, number={5}, journal={Pesquisa Agropecuaria Brasileira}, author={Piccin, R. and Couto, R.R. and Bellinaso, R.J.S. and Gatiboni, L.C. and De Conti, L. and Rodrigues, L.A.T. and Somavilla, L.M. and Kulmann, M.S.S. and Brunetto, G.}, year={2017}, pages={319–327} }
 @article{schmitt_brunetto_santos_wagner_sete_souza_ambrosini_santos_tiecher_comin_et al._2017, title={Phosphorus fractions in apple orchards in Southern Brazil}, volume={76}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85025447955&partnerID=MN8TOARS}, DOI={10.1590/1678-4499.173}, abstractNote={ABSTRACT: Phosphorus (P) applications at dosages higher than the necessary may cause P buildup in the soil labile fractions and, consequently, pollution of water sources. This study aimed to assess accumulation of P fractions as well as the parameters of adsorption isotherms in soil profiles having a history of application of phosphate fertilizers and cultivated with apple trees. Soil samples were collected from an area with no history of cultivation and 2 apple orchards cultivated for 8 (P8) and 18 (P18) years, in the city of Urubici, Santa Catarina, southern Brazil. Soil samples were air dried, sieved in a 2-mm mesh, and subjected to chemical analyses (P adsorption) besides P chemical SOIL AND PLANT NUTRITION - Article Phosphorus fractions in apple orchards in southern Brazil Djalma Eugenio Schmitt 1 , Gustavo Brunetto 2 *, Elaine dos Santos 3 , Winicius de Lima Wagner 3 , Paula Beatriz Sete 4 , Monique Souza , Vitor Gabriel Ambrosini 5 , Matheus Ademir dos Santos 3 , Tales Tiecher 2}, number={3}, journal={Bragantia}, author={Schmitt, D.E. and Brunetto, G. and Santos, E. and Wagner, W.L. and Sete, P.B. and Souza, M. and Ambrosini, V.G. and Santos, M.A. and Tiecher, T. and Comin, J.J. and et al.}, year={2017}, pages={422–432} }
 @article{gatiboni_vargas_albuquerque_almeida_stahl_chaves_brunetto_dall?orsoletta_rauber_2017, title={Phosphorus fractions in soil after successive crops of Pinus taeda L. Without fertilization,Frações de fósforo após cultivos sucessivos de Pinus taeda L. Sem fertilização}, volume={47}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85020830093&partnerID=MN8TOARS}, DOI={10.1590/0103-8478cr20160595}, abstractNote={Pinus cultivation without fertilization is a common practice in southern Brazil, which can induce a decline in the availability of phosphorus (P) in the soil. The purpose of this study was to evaluate the changes in phosphorus fractions in a Humic Cambisol subjected to continuous Pinus taeda L. cultivation without fertilization. Two forest stands were evaluated, after 16 years of Pinus cultivation (1 st crop) and 49 years (3 rd crop), when soil samples were collected (layers 0-10, 10-20, 20-40, 40-60, and 60-80cm) from six trenches per forest. In soil samples, the P contained in organic (Po) and inorganic (Pi) forms was determined by sequential chemical fractionation. Labile inorganic P fractions remained unchanged after the different cultivation periods. However, the labile organic fractions declined from the first to the third cycle (from 70.6 to 39.8mg dm -3 in the 0-10cm layer), indicating that these forms influence the buffering capacity of labile Pi. The moderately labile organic P acted as a P drain, increasing its percentage of the total, from 34.7 to 56.3%, from the first to the third crop. Soil cultivation for 49 years with Pinus taeda resulted in a reduction of the organic P content, indicating that for this soil use, this P form should be used to diagnose P availability and fertilization requirements.}, number={7}, journal={Ciencia Rural}, author={Gatiboni, L.C. and Vargas, C.O. and Albuquerque, J.A. and Almeida, J.A. and Stahl, J. and Chaves, D.M. and Brunetto, G. and dall?Orsoletta, D.J. and Rauber, L.P.}, year={2017} }
 @article{couto_ferreira_ceretta_lourenzi_facco_tassinari_piccin_conti_gatiboni_schapanski_et al._2017, title={Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition}, volume={76}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85016601217&partnerID=MN8TOARS}, DOI={10.1590/1678-4499.006}, abstractNote={Applications for long periods of organic animal waste as a source of nutrients to crops can contaminate the soil and the surface and subsurface waters. This study aimed to evaluate how the utilization of organic waste, after successive applications, affects P fractions in the soil and consequently environmental contamination. In an experiment conducted for 8 years, totaling 12 applications with pig slurry manure (PSM), liquid cattle manure (LCM), swine deep bedding (SDB), and mineral fertilizer (NPK), 460; 505; 1.111; and 535 kg P∙ha−1 were added to the soil through PSM, LCM, SDB, and NPK, respectively. In September 2012, soil samples were collected in the layers 0.0 – 0.04; 0.04 – 0.08; 0.08 – 0.12; 0.12 – 0.16; 0.16 – 0.20 m, prepared and subjected to a sequential chemical fractionation of P. The 12 applications of pig slurry, liquid cattle manure, swine deep bedding and NPK fertilizer for eight years (urea + triple superphosphate + potassium chloride) provided accumulations of P fractions in the soil that were above the necessary for a proper nutrition to plants considering the available P fractions (AER + organic NaHCO3 + inorganic NaHCO3) in the soil. In addition, they showed that the use of swine deep bedding, followed by pig slurry, means higher levels of available P fractions in the soil. In this sense, the establishment of a dosage of organic waste to meet the nitrogen need of crops is not an environmentally appropriate parameter. It may cause P accumulation in the soil, increased absorption ability of plants and soil support, contributing to environmental contamination.}, number={1}, journal={Bragantia}, author={Couto, R.R. and Ferreira, P.A.A. and Ceretta, C.A. and Lourenzi, C.R. and Facco, D.B. and Tassinari, A. and Piccin, R. and Conti, L. and Gatiboni, L.C. and Schapanski, D. and et al.}, year={2017}, pages={155–166} }
 @article{oliveira_gatiboni_brunetto_miquelluti_valicheski_2017, title={Response of beet fertilization with nitrogen, sulfur and micronutrients in a Cambisol,Resposta da beterraba a adubação com nitrogênio, enxofre e micronutrientes em um Cambissolo Háplico}, volume={35}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85017375962&partnerID=MN8TOARS}, DOI={10.1590/S0102-053620170110}, abstractNote={RESUMO Há poucos trabalhos no Brasil para calibrar a adubação de macro e micronutrientes para a cultura da beterraba na Região Sul do país. Neste trabalho, foram conduzidos dois experimentos, um a campo e um em casa-de-vegetação com os objetivos de: a) em condições de campo avaliar a resposta da beterraba a doses de nitrogênio (N), na presença ou ausência de dose única dos nutrientes enxofre (S), boro (B), zinco (Zn) e molibdênio (Mo); b) em casa-de-vegetação avaliar a resposta das plantas aos nutrientes S, B, Zn e Mo. O experimento 1 foi conduzido em um Cambissolo Háplico, com 270 g/kg de argila e 33 g/kg de matéria orgânica. Os tratamentos foram constituídos de doses de N (0, 50, 100, 150 e 200 kg/ha de N) na presença ou ausência de adubação com S, Zn, B e Mo nas doses 50; 2; 1 e 0,01 kg/ha, respectivamente, em esquema fatorial 5x2 e delineamento em blocos ao acaso, com quatro repetições. No experimento 2 usou-se o mesmo solo do experimento 1, em casa-de-vegetação em vasos de 3,0 kg de solo. Foram testados seis tratamentos (testemunha, adição de S, de B, de Zn, ou de Mo e adição mista de S, Zn, B e Mo), em delineamento inteiramente casualisado com cinco repetições. As doses dos nutrientes testados foram as mesmas usadas no experimento 1, e os demais nutrientes (P e K) foram adicionados em todos tratamentos seguindo as recomendações técnicas da cultura. Aos 60 dias após o transplante, as plantas de ambos experimentos foram colhidas e separadas em folhas e raízes para a determinação da matéria fresca e seca e determinação de N, S, B e Zn no tecido vegetal. Houve efeito significativo para o fator N com as plantas atingindo a máxima produtividade com aplicação de 100 kg/ha de N, na presença de S, Zn, B e Mo, cuja adição praticamente dobrou a produção de raízes. O experimento em casa-de-vegetação comprovou que o enxofre foi o responsável pelo aumento da produção observada no experimento 1.}, number={1}, journal={Horticultura Brasileira}, author={Oliveira, R.J.P. and Gatiboni, L.C. and Brunetto, G. and Miquelluti, D.J. and Valicheski, R.R.}, year={2017}, pages={63–68} }
 @article{dall?orsoletta_rauber_schmitt_gatiboni_orsolin_2017, title={Urea coated with poultry litter as an option in the control of nitrogen losses,Ureia recoberta com cama de aviário como opção no controle de perdas de nitrogênio}, volume={21}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85019895613&partnerID=MN8TOARS}, DOI={10.1590/1807-1929/agriambi.v21n6p398-403}, abstractNote={into NO3 did not vary between the sources, except for the control, but it differed between soil moisture contents, with equilibrium estimated at 31 and 38 days, in the treatments with 80 and 100% FC, respectively. The urea + litter has N losses by NH3 volatilization and speed of transformation of the soil mineral N similar to those of the other sources, and can be used to substitute them. Ureia recoberta com cama de aviário como opção no controle de perdas de nitrogênio R E S U M O A volatilização de amônia (NH3) e lixiviação de nitrato (NO3 -) são os principais processos de perda de nitrogênio (N) no solo. O objetivo do estudo foi avaliar perdas de N por volatilização de NH3 e as transformações do N mineral no solo com ureia recoberta com cama de aviário (ureia + cama) comparativamente a outras fontes de N, em duas condições de umidade. O experimento foi conduzido em ambiente controlado com arranjo fatorial 5 x 2 com quatro repetições sendo cinco fontes de N (ureia, SuperN®, Kimcoat®, ureia + cama e testemunha sem fertilizante) e dois teores de umidade [80 e 100% da capacidade de campo (CC)]. O total de NH3 volatilizada não diferiu entre as fontes independente da condição de umidade do solo variando de 10,8 a 13,2% do total de N aplicado. A transformação do NH4 + em NO3 não variou entre as fontes, exceto a testemunha mas diferiu entre as umidades do solo com equilíbrio estimado aos 31 e 38 dias, nos tratamentos com 80 e 100% CC, respectivamente. A ureia + cama apresenta perdas de N por volatilização de NH3 e velocidade de transformação do N mineral do solo semelhante às demais fontes podendo ser utilizada em substituição a essas.}, number={6}, journal={Revista Brasileira de Engenharia Agricola e Ambiental}, author={Dall?Orsoletta, D.J. and Rauber, L.P. and Schmitt, D.E. and Gatiboni, L.C. and Orsolin, J.}, year={2017}, pages={398–403} }
 @article{oliveira_gatiboni_valicheski_miquelluti_brunetto_2016, title={Calibration of phosphorus and potassium fertilization for beet in vale do Itajaí region,Calibração da adubação fosfatada e potássica para beterraba na região do Vale do Itajaí}, volume={34}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84963516544&partnerID=MN8TOARS}, DOI={10.1590/S0102-053620160000200010}, abstractNote={RESUMO: Estudos sobre adubação na cultura de beterraba ainda são necessários em algumas regiões de Santa Catarina. Assim, o objetivo foi avaliar a resposta da cultura da beterraba a doses de fósforo (P) e potássio (K) em Cambissolo Háplico, que é o tipo de solo predominante em 70% da região do Alto Vale do Itajaí. O experimento foi conduzido em Rio do Sul-SC em dois cultivos, sendo o primeiro cultivo instalado em blocos inteiramente casualizados no esquema fatorial 4x4 (0, 200, 400 e 600 kg/ha de P2O5) e (0, 150, 300 e 450 kg/ha de K2O) com 3 repetições. No segundo cultivo, foi avaliada a reposição de P e K, onde cada parcela do primeiro cultivo foi dividida em três, sendo aplicados 0, 33 e 66% das doses iniciais dos nutrientes. Após 60 dias do transplantio foram avaliados diâmetro de raízes, e massa fresca e seca de folhas e raízes. No primeiro cultivo, houve efeito significativo (α= 5%) para o fator P para massa seca e fresca de raiz e diâmetro de raiz e não houve efeito do K, mas a exportação foi elevada, atingindo 172,27 kg/ha de K com a dose 418 kg/ha de K2O. A máxima produção ocorreu com 379 kg/ha de P2O5, sendo que o exportado foi de 21,30 kg/ha de P na massa seca de raízes e folhas. No segundo cultivo, a beterraba respondeu à aplicação de P e K, sendo a máxima produtividade obtida com as maiores doses de P e K (450 kg/ha de K2O e 600 kg/ha de P2O5) e de reposição (300 kg/ha de K2O e 400 kg/ha de P2O5). Conclui-se que a beterraba é uma cultura muito exigente em fertilização com P e K, respondendo a doses maiores do que aquelas recomendadas pelos manuais de adubação utilizados na região.}, number={2}, journal={Horticultura Brasileira}, author={Oliveira, R.J.P. and Gatiboni, L.C. and Valicheski, R.R. and Miquelluti, D.J. and Brunetto, G.}, year={2016}, pages={210–215} }
 @article{oliveira_brunetto_loss_gatiboni_kürtz_müller júnior_lovato_oliveira_souza_comin_2016, title={Cover crops effects on soil chemical properties and onion yield}, volume={40}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84975801305&partnerID=MN8TOARS}, DOI={10.1590/18069657rbcs20150099}, abstractNote={Cover crops contribute to nutrient cycling and may improve soil chemical properties and, consequently, increase crop yield. The aim of this study was to evaluate cover crop residue decomposition and nutrient release, and the effects of these plants on soil chemical properties and on onion (Allium cepa L.) yield in a no-tillage system. The experiment was carried out in an Inceptisol in southern Brazil, where cover crops were sown in April 2012 and 2013. In July 2013, shoots of weeds (WD), black oats (BO), rye (RY), oilseed radish (RD), oilseed radish + black oats (RD + BO), and oilseed radish + rye (RD + RY) were cut at ground level and part of these material from each treatment was placed in litter bags. The litter bags were distributed on the soil surface and were collected at 0, 30, 45, 60, 75, and 90 days after distribution (DAD). The residues in the litter bags were dried, weighed, and ground, and then analyzed to quantify lignin, cellulose, non-structural biomass, total organic carbon (TOC), N, P, K, Ca, and Mg. In November 2012 and 2013, onion crops were harvested to quantify yield, and bulbs were classified according to diameter, and the number of rotted and flowering bulbs was determined. Soil in the 0.00-0.10 m layer was collected for chemical analysis before transplanting and after harvesting onion in December 2012 and 2013. The rye plant residues presented the highest half-life and they released less nutrients until 90 DAD. The great permanence of rye residue was considered a protection to soil surface, the opposite was observed with spontaneous vegetation. The cultivation and addition of dry residue of cover crops increased the onion yield at 2.5 Mg ha-1.}, journal={Revista Brasileira de Ciencia do Solo}, author={Oliveira, R.A. and Brunetto, G. and Loss, A. and Gatiboni, L.C. and Kürtz, C. and Müller Júnior, V. and Lovato, P.E. and Oliveira, B.S. and Souza, M. and Comin, J.J.}, year={2016} }
 @article{deiss_moraes_dieckow_franzluebbers_gatiboni_sassaki_carvalho_2016, title={Soil phosphorus compounds in integrated crop-livestock systems of subtropical Brazil}, volume={274}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84962787224&partnerID=MN8TOARS}, DOI={10.1016/j.geoderma.2016.03.028}, abstractNote={Soil phosphorus (P) utilization may be affected by agricultural complexity, in particular when combining annual crops and livestock grazing on the same land area and at overlapping times. Our objectives were to qualify and quantify soil organic and inorganic P compounds using sodium hydroxide-ethylenediaminetetraacetic acid (NaOH-EDTA) extraction and 31P nuclear magnetic resonance spectroscopy (31P NMR) in response to increasing complexity with integrated crop-livestock systems (ICLS) in subtropical Brazil. Soil at a depth of 0–5 cm was collected from three long-term (7 to 12 years) cropping studies with and without ruminant grazing of cover crops. All sites were managed under no tillage, and treatments with livestock were managed with moderate grazing intensity. In these agro-ecosystems, grazing compared with no-grazing had greater soil P content as total and bioavailable orthophosphate and lower soil organic P and fewer monoesters, including inositol phosphates. Grazing increased P bioavailability and reduced recalcitrant organic P concentration in soil; therefore, cropping systems that integrate livestock (ICLS) can be a sustainable alternative to improve P use in farming systems of subtropical Brazil.}, journal={Geoderma}, author={Deiss, L. and Moraes, A. and Dieckow, J. and Franzluebbers, A.J. and Gatiboni, L.C. and Sassaki, G.L. and Carvalho, P.C.F.}, year={2016}, pages={88–96} }
 @article{rosa couto_benedet_comin_filho_martins_gatiboni_radetski_valois_ambrosini_brunetto_2015, title={Accumulation of copper and zinc fractions in vineyard soil in the mid-western region of Santa Catarina, Brazil}, volume={73}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84939991941&partnerID=MN8TOARS}, DOI={10.1007/s12665-014-3861-x}, number={10}, journal={Environmental Earth Sciences}, author={Rosa Couto, R. and Benedet, L. and Comin, J.J. and Filho, P.B. and Martins, S.R. and Gatiboni, L.C. and Radetski, M. and Valois, C.M. and Ambrosini, V.G. and Brunetto, G.}, year={2015}, pages={6379–6386} }
 @article{simonete_ernani_moro_teixeira-gandra_gatiboni_2015, title={Effectiveness of chemical methods in predicting phosphorus availability to flood irrigated rice in Soils of Santa Catarina State, Brazil,Eficiência de métodos analíticos na predição da disponibilidade de fósforo para arroz irrigado em solos catarinenses}, volume={39}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84943222989&partnerID=MN8TOARS}, DOI={10.1590/01000683rbcs20140797}, abstractNote={The soils used to grow irrigated rice in the State of Santa Catarina have different mineralogical and chemical characteristics from the soils used for calibration studies of the Mehlich-1 extractant, for estimating soil phosphorus availability to plants. Thus, the aim of this study was to evaluate the effectiveness of Mehlich-1, Mehlich-3, Resin, Olsen and EDTA extractants in predicting P availability to flood irrigated rice in soils of State of Santa Catarina. The experiment was carried out in a greenhouse in 2014 with five soils collected from croplands previously planted to rice. Four rates of P were applied to the soils, corresponding to 0, ¼, ½, and 1.0 times the amount of P needed to reach 0.2 mg L-1 P in the soil solution (based on the maximum P adsorption capacity of each soil). Experimental units consisted of 8.0 L pots containing 3.5 kg of soil (dry base). Triplicates of each treatment were arranged in a completely randomized experimental design. Five days after mixing P with the soils, soil samples were collected to quantify P by five chemical methods (Mehlich-1, Mehlich-3, Resin, Olsen, and EDTA). The pots were then flooded and cultivated with six rice seedlings for 46 days. Shoot dry matter and P uptake were quantified. Linear correlations between P extracted from the soils and P taken up by the plants were used to evaluate the effectiveness of the chemical methods in predicting P availability. The amount of P taken up by rice plants varied according to soil type and increased with increases in the P rate. The EDTA method recovered the highest amount of P from the soils relative to the amount applied, followed by Olsen. Soil P extracted by EDTA and Mehlich-3 best correlated with the amount of P uptake by rice plants. Arranging soils according to their characteristics related to P adsorption improves the effectiveness of all methods in predicting P availability to rice cultivated in flood irrigated soils.}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Simonete, M.A. and Ernani, P.R. and Moro, L. and Teixeira-Gandra, C.F.A. and Gatiboni, L.C.}, year={2015}, pages={1151–1160} }
 @article{couto_santos_comin_martini_gatiboni_martins_filho_brunetto_2015, title={Environmental vulnerability and phosphorus fractions of areas with pig slurry applied to the soil}, volume={44}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84920993351&partnerID=MN8TOARS}, DOI={10.2134/jeq2014.08.0359}, abstractNote={The application of pig slurry as a fertilizer can cause soil and water contamination. Intrinsic characteristics of the environment may enhance this effect and influence the vulnerability of the agricultural system. The goal of this study was to evaluate the accumulation of soil P fractions in areas treated with pig slurry and in forest areas and to propose an evaluation of the areas' vulnerability to P contamination. Soil samples were collected from 10 areas with pig slurry applied to the soil and one in forest without a history of pig slurry application, all located in the Coruja and Bonito rivers microbasin at Braço do Norte, Santa Catarina, southern Brazil. Samples were prepared and subjected to P chemical fractionation. Two versions of the P index method, based on soil P forms or only on P extracted by Mehlich-1, were used to evaluate the environmental risk of the studied areas. Estimated soil losses were lower for the forest and natural pasture and highest in areas with black oat ( Schreb.)-corn ( L.) crop cultivation. Concentrations of P fractions, especially of organic and inorganic P extracted by 0.1 and 0.5 mol L NaOH and NaHCO and of inorganic P extracted by anion exchange resin and HCl, were higher in areas with a longer history and higher frequency of pig slurry applications. Vulnerability to P contamination was mainly influenced by soil P concentrations and soil losses in the studied areas. The P index based on Hedley's fractionation P forms resulted in a more accurate risk scoring of the studied areas than the P index based on the concentration of available P extracted by Mehlich-1.}, number={1}, journal={Journal of Environmental Quality}, author={Couto, R.R. and Santos, M. and Comin, J.J. and Martini, L.C.P. and Gatiboni, L.C. and Martins, S.R. and Filho, P.B. and Brunetto, G.}, year={2015}, pages={162–173} }
 @article{sete_de melo_oliveira_freitas_dal magro_ambrosini_trapp_comin_gatiboni_brunetto_2015, title={Loss of soil nitrogen and peach yield with the addition of organic compost,Perdas de nitrogênio do solo e resposta do pessegueiro à adição de composto orgânico}, volume={45}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84926378810&partnerID=MN8TOARS}, DOI={10.1590/0103-8478cr20131232}, abstractNote={The application of organic compost to the soil can increase the production of peach, although part of the N may be lost by leaching and volatilization. The aim of this study was to evaluate the nutritional status, yield of peaches, leaching of N forms and volatilization of NH3-N in a peach orchard with the addition of compost produced from agroindustrial juice waste, poultry slaughterhouse residues and sawdust. The orchard was established in 2009, and in july 2010, 2011 and 2012 the quantities of 0, 3, 6, 12 and 24L of organic compost per m2 were applied on a peach orchard and the total nutrient content in leaves and production was evaluated. In 2012, using lysimeters installed at 20 and 40cm deep in the soil, it was measured the forms of N in the solution in the treatments of 0 and 24L of compost. The volatilization of NH3-N was assessed in all the treatments up to 478h after compost application on the soil. The application of compost on the soil surface increased the content of K and N in whole leaves, increasing fruit production. The compost application at flowering increased the concentration of nitrate in the soil solution at a depth of only 20cm. The ammonia emission increased especially with the augmenting dose of compost applied, and in periods of higher temperature}, number={4}, journal={Ciencia Rural}, author={Sete, P.B. and De Melo, G.W.B. and Oliveira, B.S. and Freitas, R.F. and Dal Magro, R. and Ambrosini, V.G. and Trapp, T. and Comin, J.J. and Gatiboni, L.C. and Brunetto, G.}, year={2015}, pages={651–657} }
 @article{rogeri_ernani_louren?o_cassol_gatiboni_2015, title={Mineralization and nitrification of nitrogen from poultry litter applied to soil,Mineralização e nitrificação do nitrogênio proveniente da cama de aves aplicada ao solo}, volume={19}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84931337591&partnerID=MN8TOARS}, DOI={10.1590/1807-1929/agriambi.v19n6p534-540}, abstractNote={The fertilizer or pollutant effect of the nitrogen present in animal wastes depends on the mineralization of the organic N forms as well as nitrification, in addition to other factors. The objective of this study was to quantify both mineralization and nitrification rates of N applied to the soil from poultry litter. The experiment was carried out in a greenhouse using samples of a Humic Haplumbrept containing 55 g kg-1 of organic matter, 400 g kg-1 of clay and pH 6.0. Treatments consisted of combination of rates of poultry litter (equivalent to 0, 4, 8 and 16 Mg ha-1) and a single rate of urea, all incorporated in soil or applied on surface. Mineral N (N-NH4+ and N-NO3-) in the soil was determined at 2, 6, 12, 19, 26, 32 and 48 days after treatment application. The concentrations of ammonium decreased and that of nitrate increased over time due to nitrification, which was faster when poultry litter was incorporated to the soil in comparison to surface applied. Mineral soil N recovery from the amount of total N applied as poultry litter was small regardless of the application form: after 48 days, mineral N was 22 and 15.7% for application rates of 4 and 16 Mg ha-1, respectively.}, number={6}, journal={Revista Brasileira de Engenharia Agricola e Ambiental}, author={Rogeri, D.A. and Ernani, P.R. and Louren?o, K.S. and Cassol, P.C. and Gatiboni, L.C.}, year={2015}, pages={534–540} }
 @article{morais_gatiboni_2015, title={Phosphorus availability and microbial immobilization in a Nitisol with the application of mineral and organo-mineral fertilizers}, volume={87}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84949942986&partnerID=MN8TOARS}, DOI={10.1590/0001-3765201520140008}, abstractNote={The aim of this study was to evaluate P availability, P and C contained in the microbial biomass, and enzymatic activity (acid phosphatases and β-glucosidases) in a Nitisol with the application of mineral and organo-mineral fertilizers. The experiment was performed in a protected environment with control over air temperature and soil moisture. The experimental design was organized in a "5 x 4" factorial arrangement with five sources of P and four times of soil incubation. The sources were: control (without P), triple superphosphate, diammonium phosphate, natural Arad reactive rock phosphate, and organo-mineral fertilizer. The experimental units consisted of PVC columns filled with agricultural soil. The columns were incubated and broken down for analysis at 1, 20, 40, and 60 days after application of the fertilizers. In each column, samples were taken at the layers of 0-2.5, 2.5-5.0, and 5.0-15.0 cm below the zone of the fertilizers. The application of soluble phosphates and organo-mineral fertilizer temporarily increased P availability in the zone near the fertilizers (0-2.5 cm), with maximum availability occurring at approximately 32 days. Microbial immobilization showed behavior similar to P availability, and the greatest immobilizations occurred at approximately 30 days. The organo-mineral fertilizer was not different from soluble phosphates.}, number={4}, journal={Anais da Academia Brasileira de Ciencias}, author={Morais, F.A. and Gatiboni, L.C.}, year={2015}, pages={2289–2299} }
 @article{de oliveira_erich_gatiboni_ohno_2015, title={Phosphorus fractions and organic matter chemistry under different land use on Humic Cambisols in Southern Brazil}, volume={5}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84933510755&partnerID=MN8TOARS}, DOI={10.1016/j.geodrs.2015.06.001}, abstractNote={The Araucaria moist forest was once widespread in southern Atlantic Brazil but today, due to agriculture and timber harvesting, only remnants remain, mainly in mountainous regions of southern Brazil. This study combines Hedley sequential extraction to determine phosphorus (P) fractionation with 31P NMR, fluorescence spectroscopy, and ESI-FT-ICR-MS to examine soil P and organic matter chemistry at five different Araucaria moist forest sites, including two natural sites, grassland and native forest, and three altered sites, two apple orchard sites (fertilized apple rows and unfertilized soil between apple rows) and a pine plantation site without fertilization. This study examined how land use change has altered soil chemistry compared to native vegetation, focusing specifically on P and C fractions. Although the native grassland site contained the highest amount of soil C, the sites were similar in total P. The largest extractable fraction at all sites was NaOH-extractable organic P (Po), and the quantity of Po (0.1 M plus 0.5 M extractions) did not differ significantly among the soils. The 31P NMR analysis revealed that the majority of NaOH-extractable P was present as either inorganic P (Pi) orthophosphate (49%) or Po monoesters (34%). Pi orthophosphate was highest in pine plantation and apple orchard in the row sites (66 and 67% of P detected, respectively) and lowest in native grassland (20% of P detected), while Po was highest in the native grassland soil (75% of P detected). In our samples ~ 1% or fewer of labile C compounds contained P, while 5–6% of adsorbed C compounds contained both N and P. Using 31P NMR and ESI-FT-ICR-MS approaches, we found evidence of chemical changes in native soil P and organic matter due to land use change, specifically loss of organic forms of P and increased organic matter aromaticity in apple soils compared to native soils. This research shows that the conversion of native grasslands to apple orchards led to a decrease in organic matter quality and Po depletion while conversion to pine plantations has a low impact on these parameters. These analytical techniques are promising approaches to improving our understanding of both P and C chemistry and the effects of land use changes on coupled biogeochemical cycles.}, journal={Geoderma Regional}, author={De Oliveira, C.M.B. and Erich, M.S. and Gatiboni, L.C. and Ohno, T.}, year={2015}, pages={140–149} }
 @article{dias_gatiboni_brunetto_simonete_bicaratto_2015, title={Relative efficiency of rock phosphates in fertilization of planting seedlings eucalyptus dunnii maiden and eucalyptus benthamii maiden etcambagem in soil with and without liming,EficiÊncia relativa de fosfatos naturais na adubaÇÃo de plantio de mudas de eucalyptus dunnii maiden e eucalyptus benthamii maiden etcambagem em solo sem e com calagem}, volume={25}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84926443556&partnerID=MN8TOARS}, number={1}, journal={Ciencia Florestal}, author={Dias, L.P.R. and Gatiboni, L.C. and Brunetto, G. and Simonete, M.A. and Bicaratto, B.}, year={2015}, pages={37–48} }
 @article{gatiboni_smyth_schmitt_cassol_oliveira_2015, title={SOIL PHOSPHORUS THRESHOLDS IN EVALUATING RISK OF ENVIRONMENTAL TRANSFER TO SURFACE WATERS IN SANTA CATARINA, BRAZIL}, volume={39}, ISSN={["0100-0683"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84943328551&partnerID=MN8TOARS}, DOI={10.1590/01000683rbcs20140461}, abstractNote={The State of Santa Catarina, Brazil, has agricultural and livestock activities, such as pig farming, that are responsible for adding large amounts of phosphorus (P) to soils. However, a method is required to evaluate the environmental risk of these high soil P levels. One possible method for evaluating the environmental risk of P fertilization, whether organic or mineral, is to establish threshold levels of soil available P, measured by Mehlich-1 extractions, below which there is not a high risk of P transfer from the soil to surface waters. However, the Mehlich-1 extractant is sensitive to soil clay content, and that factor should be considered when establishing such P-thresholds. The objective of this study was to determine P-thresholds using the Mehlich-1 extractant for soils with different clay contents in the State of Santa Catarina, Brazil. Soil from the B-horizon of an Oxisol with 800 g kg-1 clay was mixed with different amounts of sand to prepare artificial soils with 200, 400, 600, and 800 g kg-1 clay. The artificial soils were incubated for 30 days with moisture content at 80 % of field capacity to stabilize their physicochemical properties, followed by additional incubation for 30 days after liming to raise the pH(H2O) to 6.0. Soil P sorption curves were produced, and the maximum sorption (Pmax) was determined using the Langmuir model for each soil texture evaluated. Based on the Pmax values, seven rates of P were added to four replicates of each soil, and incubated for 20 days more. Following incubation, available P contents (P-Mehlich-1) and P dissolved in the soil solution (P-water) were determined. A change-point value (the P-Mehlich-1 value above which P-water starts increasing sharply) was calculated through the use of segmented equations. The maximum level of P that a soil might safely adsorb (P-threshold) was defined as 80 % of the change-point value to maintain a margin for environmental safety. The P-threshold value, in mg dm-3, was dependent on the soil clay content according to the model P-threshold = 40 + Clay, where the soil clay content is expressed as a percentage. The model was tested in 82 diverse soil samples from the State of Santa Catarina and was able to distinguish samples with high and low environmental risk.}, number={4}, journal={REVISTA BRASILEIRA DE CIENCIA DO SOLO}, author={Gatiboni, Luciano Colpo and Smyth, Thomas Jot and Schmitt, Djalma Eugenio and Cassol, Paulo Cezar and Oliveira, Clovisson Menotti}, year={2015}, pages={1225–1234} }
 @article{oliveira_ernani_gatiboni_pegoraro_2014, title={Chemical changes and evaluation of available P near the granules of triple superphosphate and diammonium phosphate in acid soils,Alterações químicas e avaliação de P disponível na região adjacente aos grânulos de superfosfato triplo e diamônio fosfato em solos ácidos}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84908691632&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832014000500018}, abstractNote={Phosphorus has low mobility in the soil. Thus, its concentration near the granules of phosphate fertilizers in the soil is very high, which may affect P availability and the soil chemical composition in these regions. This study was carried out to evaluate the soil chemical composition near the granules of calcium or ammonium phosphates and P mobility in two Brazilian acid soils. The experiment was carried out in 2009 and treatments consisted of a combination of triple superphosphate (TSP) or diammonium phosphate (DAP) with KCl, in addition to a control with only KCl. Each experimental unit was constituted by PVC columns (12 cm long and 10 cm in diameter), subsequently filled with 1.20 kg of soil (dry base). The amount of TSP, DAP and KCl applied to each experimental unit was 10.47, 9.56 and 7.33 g respectively, which, considering a soil volume of 2 x 103 m3, would be equivalent to 200 kg ha-1 of P2O5 and 200 kg ha-1 of K2O. Forty-five days after fertilizers application the soil volume in each centimeter distant from the granules was chemically quantified. For P, nine consecutive extractions were performed using the methods of Mehlich-1 and anion exchangeable resin (AER). DAP increased pH and decreased exchangeable Al near the granules while SFT increased both, Ca and Mg. The amount of cumulative P extracted varied with phosphate fertilizers, distance from the granules, soil type and extraction method. In the 0 to 1.0 cm layer distant from the granules TSP gave the highest P values, that reached up to 10,276 mg dm-3; in the two following layers (1.0 to 2,0 and 2.0 to 3.0 cm), this occurred with DAP. Mehlich-1 always quantified more P than AER in the soil near the phosphate fertilizers. The movement of P in both soils occurred until the fourth centimeter away from the granules and the soil chemical composition in these regions varied with the phosphate fertilizer, soil type, extraction method and distance from the granules, which needs to be better studied.}, number={5}, journal={Revista Brasileira de Ciencia do Solo}, author={Oliveira, J.P.M. and Ernani, P.R. and Gatiboni, L.C. and Pegoraro, A.}, year={2014}, pages={1526–1536} }
 @article{lopes_campos_silveira_gatiboni_miquelutti_cassol_freitas medeiros_2014, title={Cu and Zn adsorption in an Oxisol treated with pig slurry,Adsorção de Cu e Zn num Latossolo Vermelho tratado com dejetos suínos}, volume={61}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84920443191&partnerID=MN8TOARS}, DOI={10.1590/0034-737X201461060016}, abstractNote={Cu and Zn adsorption in an Oxisol treated with pig slurry Cooper and zinc derived from pig slurry can accumulate in the soil, posing risks to human and animal health. The objective of this study was to determine the adsorption capacity and the competition of Cu and Zn in Oxisols that received continued applications of 200 m 3 ha -1 year -1 of pig slurry for seven years and to compare with soil under natural conditions. To evaluate the adsorption, Cu and Zn solutions were applied to the soil at concentrations of 0, 25, 50, 100, 150, 200, 400, 1.200 μmol L -1 ; soil:solution ratio of 1:100.Merck Certipur standard solution 1.000 mg L -1 was utilized to construct the levels of Zn and Cu. The adsorption of Cu showed a sigmoid behavior (S-type isotherm) in soil with no slurry application and linear behavior (C-type isotherm) in soil with pig slurry . The maximum adsorption of Cu in soil without pig slurry was 3,021 mg kg -1 . For Zn, all the isotherms showed linear behavior. The maximum adsorption capacity of Cu and Zn was not reached in soil with slurry. These results show that the studied Oxisol has a high capacity to retain Zn and Cu from pig slurry .}, number={6}, journal={Revista Ceres}, author={Lopes, C. and Campos, M.L. and Silveira, C.B. and Gatiboni, L.C. and Miquelutti, D.J. and Cassol, P.C. and Freitas Medeiros, I.}, year={2014}, pages={997–1005} }
 @article{oliveira_tiecher_quadros_trindade_gatiboni_brunetto_santos_2014, title={Forms of soil phosphorus in natural pastures subjected to additions of phosphates,Formas de fósforo no solo sob pastagens naturais submetidas à adição de fosfatos}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84905164825&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832014000300018}, abstractNote={A maioria das pastagens naturais no bioma Campos no sul do Brasil cresce em solos com baixa disponibilidade de fosforo (P), mas com altos teores de P total e de P orgânico. Este trabalho objetivou avaliar as alteracoes nas formas de P no solo, ao longo de um ciclo de crescimento de pastagens naturais, decorrentes da aplicacao de fontes de fosfato. Em tres experimentos instalados em areas de pastagem natural, foi aplicado P nas formas de hiperfosfato de Gafsa, superfosfato triplo e testemunha, arranjados em blocos casualizados com tres repeticoes. Nos experimentos instalados no municipio de Candiota, RS, em pastagens naturais sob Luvissolo Umbrico e Neossolo Litolico, foram aplicados 100 kg ha-1 de P2O5 em setembro de 2010. Na pastagem sob Argissolo Vermelho no municipio de Santa Maria, RS, foram aplicados 180, 90, 100 e 100 kg ha-1 de P2O5 nos anos de 1997, 1998, 2002 e 2010, respectivamente. Amostras de solo foram coletadas (0-10 cm) ao longo da estacao de crescimento da pastagem (0, 55, 116, 171 e 232 dias, apos aplicacao do fosfato em Candiota; e 0, 50, 83, 129, 159 e 186 dias, apos aplicacao do fosfato em Santa Maria). Foram analisados os teores de P disponivel por resina de troca anionica, o P imobilizado na biomassa microbiana do solo, o P extraido por NaOH 0,1 mol L-1, o P orgânico total e o P total. Os teores de P disponivel aumentaram rapidamente com a aplicacao de fosfato soluvel, mas no final do periodo de avaliacao esses se equivaleram ao do fosfato natural, que foi semelhante a testemunha. A aplicacao de fertilizantes fosfatados sob pastagens naturais com baixa disponibilidade de P aumentou a importância das fracoes inorgânicas labeis as plantas, tornando-as menos dependentes da mineralizacao das fracoes orgânicas. As fracoes orgânicas, inclusive o P microbiano, nao sao bons indicadores da biodisponibilidade de P em pastagens naturais sob Argissolos, Neossolos e Luvissolos do sul do Brasil fertilizadas com fosfatos.}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Oliveira, L.B. and Tiecher, T. and Quadros, F.L.F. and Trindade, J.P.P. and Gatiboni, L.C. and Brunetto, G. and Santos, D.R.}, year={2014}, pages={867–878} }
 @article{de oliveira_gatiboni_miquelluti_smyth_almeida_2014, title={Maximum phosphorus adsorption capacity and binding energy constant of an oxisol fitting different langmuir models,Capacidade máxima de adsorção de fósforo e constante de energia de ligação em latossolo bruno em razão de diferentes ajustes do modelo de langmuir}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84922278978&partnerID=MN8TOARS}, number={6}, journal={Revista Brasileira de Ciencia do Solo}, author={De Oliveira, C.M.B. and Gatiboni, L.C. and Miquelluti, D.J. and Smyth, T.J. and Almeida, J.A.}, year={2014}, pages={1805–1815} }
 @article{martins_comin_gatiboni_soares_couto_brunetto_2014, title={Nitrogen mineralization of cover plant litter, intercropped or not, in a soil with a history of onion plantation,Mineralizac¸a&tild;o do nitrogeˆnio de plantas de cobertura, solteiras e consorciadas, depositadas sobre um solo com histo´rico de cultivo de cebola}, volume={61}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84907250855&partnerID=MN8TOARS}, DOI={10.1590/0034-737X201461040020}, abstractNote={Nitrogen mineralization of cover plant litter, intercropped or not, in a soil with a histor y of onion plantation The decomposition of winter cover plants on the soil surface can increase nitrogen (N) availability during the onion crop cycle. The objective of this study was to evaluate N mineralization of cover plant litter , intercropeed or not, in a soil with a history of onion plantation. Soil was collected, prepared, placed in acrylic containers. Dry mass of black oats, rye, oilseed radish, black oats + oilseed radish and rye + oilseed radish were added into soil surface and incubated for 90 days. Soil was sampled and contents of total N, NO 3 - -N and NH 4 + -N were determined at time zero and at 18, 36, 54, 72 and 90 days after incubation. Values of mineral N, net mineral N, mineralized N and total N - mineralized N were}, number={4}, journal={Revista Ceres}, author={Martins, R.P. and Comin, J.J. and Gatiboni, L.C. and Soares, C.R.F. and Couto, R.R. and Brunetto, G.}, year={2014}, pages={587–596} }
 @article{dias_gatiboni_ernani_miquelluti_chaves_brunetto_2014, title={Partial substitution of soluble phosphate by rock phosphate in the planting of Eucalyptus benthamii and Eucalyptus dunnii in southern Brazil,Substituição parcial de fosfato solúvel por natural na implantação de Eucalyptus benthamii e Eucalyptus dunnii no planalto sul catarinense}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84903307068&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832014000200016}, abstractNote={Phosphorus fertilization is important for the initial growth of eucalyptus. Soluble phosphate (SP) sources are commonly used for this purpose because they offer fast dissolution in the soil, but these sources have higher costs than rock phosphate (RP), which has lower solubility. The aim of this study was to evaluate the use of RP as a partial substitute for SP for the initial supply of P to Eucalyptus benthamii and E. dunnii. Two field experiments were carried out (one with each species) in the municipality of Otacilio Costa, SC, Brazil, from November 2010 to December 2011. A randomized block experimental design in a split plot arrangement with three replications was used. In the main plot, the presence or absence of RP (0 or 60 kg ha-1 of P2O5 using Bayovar as a P source) was tested, and in the subplots, application rates of SP (0, 75, 150 and 300 kg ha-1 P2O5, using triple superphosphate) were tested. The diameter was measured at the root collar as well as tree height at 340 days after applying the P sources. The results showed that P fertilization promoted plant growth in diameter and height, increasing the volume of E. benthamii and E. dunnii during the first year of cultivation. E. benthamii was more demanding in P, but allowed partial replacement of soluble phosphate by a source with lower solubility. There was no response from E. dunnii to the application of rock phosphate, and fertilization should be performed only with soluble phosphates.}, number={2}, journal={Revista Brasileira de Ciencia do Solo}, author={Dias, L.P.R. and Gatiboni, L.C. and Ernani, P.R. and Miquelluti, D.J. and Chaves, D.M. and Brunetto, G.}, year={2014}, pages={516–523} }
 @article{tiecher_oliveira_rheinheimer_quadros_gatiboni_brunetto_kaminski_2014, title={Phosphorus application and liming effects on forage production, floristic composition and soil chemical properties in the Campos biome, southern Brazil}, volume={69}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84907879794&partnerID=MN8TOARS}, DOI={10.1111/gfs.12079}, abstractNote={Studies of responses of native and introduced grassland species to lime and phosphorus (P) applications could contribute to improved understanding of the potential production of South American natural grasslands. To determine the effect of applying lime and different P sources on forage production, diversity and floristic composition, and on soil chemical properties, a small-plot experiment was conducted over 12 years in natural grassland oversown with Lolium multiflorum and Trifolium vesiculosum in the Campos of southern Brazil. In treatments with soluble phosphate application, dry-matter (DM) yield in November 2008, after 164 d of winter and early spring growth, increased from 2·3 to 3·2 t ha−1. Differences in DM yield in March 2009, after 111 d of growth during late spring and early summer, were not significant. The DM yield in April 2010, after 419 d of growth, increased from 7·7 to 9·2 t ha−1 in the treatments with P, regardless of the P source. Increased forage yield during the slow growth period in winter was only possible with the introduction of winter-growing species (L. multiflorum and T. vesiculosum) and soluble phosphate application. Assessment of annual forage yield showed that the effectiveness of Gafsa rock phosphate was equivalent to that of soluble phosphates in the long term. Soluble phosphates and liming modified the botanical composition of natural Campos grassland in the long term, but floristic diversity was not altered.}, number={4}, journal={Grass and Forage Science}, author={Tiecher, T. and Oliveira, L.B. and Rheinheimer, D.S. and Quadros, F.L.F. and Gatiboni, L.C. and Brunetto, G. and Kaminski, J.}, year={2014}, pages={567–579} }
 @article{schmitt_gatiboni_girotto_lorensini_melo_brunetto_2014, title={Phosphorus fractions in the vineyard soil of the Serra Gaúcha of Rio Grande do Sul, Brazil,Frações de fósforo no solo de vinhedo na Serra Gaúcha do Rio Grande do Sul}, volume={18}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84893633688&partnerID=MN8TOARS}, DOI={10.1590/S1415-43662014000200002}, abstractNote={The study aimed to evaluate the accumulation of P fractions in a vineyard soil profile with successive applications of phosphate fertilizers. In January 2010 an area was selected of native forest and a vineyard at age 33 with a history of phosphate fertilizer application, in Bento Goncalves, Rio Grande do Sul state. Soil samples were collected from 0-5, 5-10 and 10-20 cm layers, prepared and submitted to chemical fractionation of P. The excessive application of phosphate fertilizers during 33 years in the vineyard soil increased the levels of organic and inorganic P until the 20 cm layer in all P fractions. The highest levels of P in the vineyard soil were found mainly in the labile fractions extracted with anion exchange resin and NaHCO3, which indicates high nutrient availability to plants, but also indicates the potential of transfer of solution from soil to surface run-off or percolated through the soil profile, which represents greater potential for contamination of surface and subsurface waters.}, number={2}, journal={Revista Brasileira de Engenharia Agricola e Ambiental}, author={Schmitt, D.E. and Gatiboni, L.C. and Girotto, E. and Lorensini, F. and Melo, G.W.B. and Brunetto, G.}, year={2014}, pages={134–140} }
 @article{moro_gatiboni_simonete_cassol_chaves_2014, title={Response of one-, Five-, And nine-year-old pinus taeda to npk fertilization in southern brazil,Resposta de pinus taeda com diferentes idades À adubaÇÃo npk no planalto sul catarinense}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84923368709&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832014000400014}, abstractNote={In the southern highland (Planalto Sul) region of Santa Catarina, Brazil, most of the pine forests were planted without soil fertilization. Currently, many areas are in the second or third rotation, and their productivity may be limited by low soil fertility. An alternative to mitigate this problem would be fertilization in the established forest. This study was carried out with the objective of evaluating the effect of fertilization with N, P, and K at different growth stages of Pinus taeda. Experiments were conducted in one-, five-, and nine-year-old forests, all in the second rotation, in Cambisols located in the municipality of Otacilio Costa, Santa Catarina, Brazil. Treatments consisted of combinations of fertilization rates of N (N0=0, N1=70, and N2=140 kg ha-1 N), P (P0=0, P1=75, and P2=150 kg ha-1 P2O5), and K (K0=0, K1=60, and K2=120 kg ha-1 K2O), plus a control treatment without fertilization. The combinations used were N0P0K0, N0P1K0, N1P1K1, N1P2K1, N1P2K2, and N2P2K1. A completely randomized block experimental design was used, with three replications. The height and diameter at the root collar or at breast height of trees was measured; also the trunk volume of the plants and N, P, and K contents in needles at six and 18 months after fertilization were measured. In one-year-old plants, a significant increase in timber volume was obtained with the application of 70 kg ha-1 of P2O5. For five- and nine-year-old plants, fertilization with 70, 75, and 60 kg ha-1 of N, P2O5, and K2O, respectively, promote significant increase in timber volume, showing that fertilization of established pine forests increase productivity in areas of low fertility.}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Moro, L. and Gatiboni, L.C. and Simonete, M.A. and Cassol, P.C. and Chaves, D.M.}, year={2014}, pages={1181–1189} }
 @article{knoblauch_ernani_deschamps_gatiboni_walker_louren?o_martins_pegoraro_2014, title={Rice straw incorporated just before soil flooding increases acetic acid formation and decreases available nitrogen,A incorporação da palha do arroz próximo ao alagamento do solo aumenta a formação de ácido acético e diminui a disponibilidade de nitrogênio}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84897949371&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832014000100017}, abstractNote={Incorporation of rice straw into the soil just before flooding for water-seeded rice can immobilize mineral nitrogen (N) and lead to the production of acetic acid harmful to the rice seedlings, which negatively affects grain yield. This study aimed to evaluate the formation of organic acids and variation in pH and to quantify the mineral N concentration in the soil as a function of different times of incorporation of rice straw or of ashes from burning the straw before flooding. The experiment was carried out in a greenhouse using an Inceptisol (Typic Haplaquept) soil. The treatments were as follows: control (no straw or ash); incorporation of ashes from previous straw burning; rice straw incorporated to drained soil 60 days before flooding; straw incorporated 30 days before flooding; straw incorporated 15 days before flooding and straw incorporated on the day of flooding. Experimental units were plastic buckets with 6.0 kg of soil. The buckets remained flooded throughout the trial period without rice plants. Soil samples were collected every seven days, beginning one day before flooding until the 13th week of flooding for determination of mineral N- ammonium (NH4+) and nitrate (NO3-). Soil solution pH and concentration of organic acids (acetic, propionic and butyric) were determined. All NO3- there was before flooding was lost in approximately two weeks of flooding, in all treatments. There was sigmoidal behavior for NH4+ formation in all treatments, i.e., ammonium ion concentration began to rise shortly after soil flooding, slightly decreased and then went up again. On the 91st day of flooding, the NH4+ concentrations in soil was 56 mg kg-1 in the control treatment, 72 mg kg-1 for the 60-day treatment, 73 mg kg-1 for the 30-day treatment and 53 mg kg-1 for the ash incorporation treatment. These ammonium concentrations correspond to 84, 108, 110 and 80 kg ha-1 of N-NH4+, respectively. When the straw was incorporated on the day of flooding or 15 days before, the concentration of N-NH4+ in the soil was 28 and 54 mg kg-1, equivalent to an accumulation of 42 and 81 kg ha-1 of N-NH4+, respectively. There was formation of acetic acid in which toxic concentrations were reached (7.2 mmol L-1) on the 15th day of flooding only for the treatment with straw incorporated on the day of flooding. The pH of the soil solution of all the treatments increased after flooding and this increase was faster in the treatments with incorporation of straw, followed by the ash treatment and then the control. After 60 days of flooding, however, the pH values were around 6.5 for all treatments, except for the control, which reached a pH of 6.3. Rice straw should be incorporated into the soil at least 30 days before flooding; otherwise, it may immobilize part of the mineral N and produce acetic acid in concentrations toxic to rice seedlings.}, number={1}, journal={Revista Brasileira de Ciencia do Solo}, author={Knoblauch, R. and Ernani, P.R. and Deschamps, F.C. and Gatiboni, L.C. and Walker, T.W. and Louren?o, K.S. and Martins, A.A. and Pegoraro, A.}, year={2014}, pages={177–184} }
 @article{schmitt_comin_ceretta_gatiboni_tiecher_lorensini_heinzen_ambrosini_moraes_brunetto_2013, title={Accumulation of phosphorus fractions and contamination potential in vineyard soils in the southern region of the state of Santa Catarina, Brazil,Acúmulo de frações de fósforo e potencial contaminante em solos de vinhedos na região sul do estado de Santa Catarina, Brasil}, volume={37}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84891106336&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832013000500015}, abstractNote={In vineyards, if phosphate is applied both before planting and at intervals during growth without consideration of technical criteria, the soil P fractions may be increased and their proportions altered. This study was carried out to evaluate the accumulation of P fractions and the parameters of the adsorption isotherm in a sandy Typic Hapludalf soil in vineyards with a history of successive and excessive phosphate fertilization. In December 2010, two vineyards were selected, one 4 and the other 15 years old, in Urussanga, State of Santa Catarina (Brazil). Three trenches were dug in each area and soil was collected from the 0-5, 5-10 and 10-20 cm depth ranges. The soil samples were dried in a forced-air oven, sieved and subjected to chemical analyses, P chemical fractionation and P adsorption isotherms. Excessive phosphate fertilization, before and during cultivation, particularly in the older vineyard and, consequently, with a longer history of phosphate fertilization, increased the inorganic P concentrations to the depth of 20 cm, especially in labile fractions extracted by anion exchange resin and NaHCO3 in the non-labile fraction, as well as in the non-labile fraction extracted by 1.0 mol L-1 HCl. The application of phosphate fertilizers and the long cultivation period increased the P levels in the organic labile fraction extracted by 0.5 mol L-1 NaHCO3, and especially in the moderately labile fraction extracted by 0.1 and 0.5 mol L-1 NaOH. Phosphate fertilization of older vineyards, i.e., cultivated for 15 years, increased the amounts of P desorbed in water, indicating a risk of contamination of surface waters and groundwater. The phosphate fertilization before planting, without considering the results of soil analysis, and during cultivation, disregarding the results of soil analysis, leaf analysis and expected yield, led to a reduction in the maximum P adsorption capacity in the 0-5 cm layer of vineyard 2, indicating saturation of part of the reactive particle adsorption sites.}, number={5}, journal={Revista Brasileira de Ciencia do Solo}, author={Schmitt, D.E. and Comin, J.J. and Ceretta, C.A. and Gatiboni, L.C. and Tiecher, T. and Lorensini, F. and Heinzen, J. and Ambrosini, V.G. and Moraes, M.P. and Brunetto, G.}, year={2013}, pages={1256–1266} }
 @article{branco_silveira_campos_gatiboni_miquelluti_2013, title={Chemical attributes of soil and leaching of phenolic compounds after addition of alkaline solid residue,Atributos químicos do solo e lixiviação de compostos fenólicos após adição de resíduo sólido alcalino}, volume={17}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84877788718&partnerID=MN8TOARS}, DOI={10.1590/S1415-43662013000500012}, abstractNote={The use of alkaline residues from pulp and paper industry ('dregs') in agriculture as a corrective of soil acidity is being widely used as an alternative of ground disposal in order to reduce the environmental impact. The objective of this study was to determine the influence of application of the 'dregs', waste from pulp and paper industry, in soil chemical properties and leaching of phenolic compounds. The experimental units consisted of leaching columns filled with soil incorporated with 'dregs' at doses of 0, 2.5, 5.0 and 10.0 g kg-1. Chemical analysis were performed in these soils, a Humic Camibissolo and a Typic Quartzipsamment soils, tests of solubilization of phenolic compounds and leaching tests were also carried out to determine the total content of phenolic compounds present in the leachate. The use of the 'dregs' modified the chemical attributes of the Humic Cambisol and Typic Quartzipsamment. The results obtained in the analysis of the leachate showed that the application of the 'dregs' led to an increase of compounds above the maximum allowed by law, which is 0,01 mg L-1 (ANBR, 2004a) and 0,5 mg L-1 (CONAMA, 2008).}, number={5}, journal={Revista Brasileira de Engenharia Agricola e Ambiental}, author={Branco, S.B. and Silveira, C.B. and Campos, M.L. and Gatiboni, L.C. and Miquelluti, D.J.}, year={2013}, pages={543–550} }
 @article{stahl_ernani_gatiboni_chaves_neves_2013, title={Dry matter yield and nutritional efficiency of Eucalyptus benthamii and Eucalyptus dunnii clones due to addition of phosphorus rates to the soil,Produção de massa seca e eficiência nutricional de clones de Eucalyptus dunnii e Eucalyptus benthamii em função da adição de doses de fósforo ao solo}, volume={23}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84879728688&partnerID=MN8TOARS}, number={2}, journal={Ciencia Florestal}, author={Stahl, J. and Ernani, P.R. and Gatiboni, L.C. and Chaves, D.M. and Neves, C.U.}, year={2013}, pages={287–295} }
 @article{schoninger_gatiboni_ernani_2013, title={Fertilization with rock phosphate and kinetics of phosphorus uptake by soybean and cover crops of Brazilian cerrado soils,Fertilização com fosfato natural e cinética de absorção de fósforo de soja e plantas de cobertura do cerrado}, volume={34}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84878308616&partnerID=MN8TOARS}, DOI={10.5433/1679-0359.2013v34n1p95}, abstractNote={A fim de identificar plantas com maior capacidade de absorcao de P em solos de cerrado adubados com fosfato natural, visando a ciclagem deste nutriente, objetivou-se: a) avaliar a capacidade de absorcao de fosforo e o desenvolvimento inicial de soja, sorgo, milheto e braquiaria em funcao da aplicacao de fosfato soluvel e natural ao solo; b) estimar os parâmetros cineticos de absorcao de P dessas especies cultivadas em solucao nutritiva. Para tanto, foram realizados dois experimentos no Centro de Ciencias Agroveterinarias da Universidade do Estado de Santa Catarina (CAV/UDESC), no ano de 2010. O primeiro experimento constou do desenvolvimento de plantas (soja, braquiaria, sorgo e milheto) em solos adubados com fosfato natural e superfosfato triplo, alem de um tratamento sem aplicacao de P, arranjados em um fatorial 4x3, sob delineamento inteiramente casualizado, com quatro repeticoes. Foram avaliadas a producao de massa seca das plantas e a quantidade de P acumulada no tecido. No segundo experimento foram estimados os parâmetros cineticos de absorcao de P (I max , K m e C min ) de cada uma das especies apos 23 dias de desenvolvimento em solucao nutritiva, utilizando-se o delineamento inteiramente casualizado com quatro repeticoes. A soja, em fase inicial de desenvolvimento, nao responde a adubacao fosfatada, apresentando mais massa seca de tecido e acumulo de P no tecido, comparativamente as demais especies. A aplicacao de superfosfato triplo promoveu maior producao de massa seca de tecido para todas as gramineas, quando comparada as demais fontes de P. A braquiaria apresentou maior taxa de absorcao de P em elevadas concentracoes deste nutriente na solucao, enquanto a soja apresentou maior capacidade de absorcao de P em baixas concentracoes na solucao. Palavras-chave: Parâmetros cineticos de absorcao, ciclagem de fosforo, adubacao fosfatada}, number={1}, journal={Semina:Ciencias Agrarias}, author={Schoninger, E.L. and Gatiboni, L.C. and Ernani, P.R.}, year={2013}, pages={95–106} }
 @article{schmitt_comin_gatiboni_tiecher_lorensini_melo_girotto_guardini_heinzen_brunetto_2013, title={Phosphorus fractions in sandy soils of vineyards in Southern Brazil,Frações de fósforo em solos arenosos cultivados com videira na região sul do Brasil}, volume={37}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84878820232&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832013000200018}, abstractNote={As aplicacoes de fosforo (P) em vinhedos podem causar o acumulo desse nutriente no solo e maximizar seu potencial poluente. Este trabalho objetivou quantificar as fracoes de acumulacao de P em solos arenosos cultivados com videiras na regiao Sul do Brasil. Para isso, amostras de solo foram coletadas nas camadas de 0-5, 6-10 e 11-20 cm em uma area de campo nativo e em dois vinhedos: um com 14 anos de cultivo (vinhedo 1) e outro com 30 anos (vinhedo 2), localizados no municipio de Santana do Livramento, Rio Grande do Sul (RS), Brasil. As amostras foram secas, moidas e submetidas ao fracionamento quimico de P. Os resultados evidenciaram que os teores de P inorgânico aumentaram ate 20 cm de profundidade, principalmente no vinhedo 2, em especial nas fracoes labeis extraidas por resina de troca anionica e por NaHCO3, na fracao moderadamente labil, extraida por NaOH 0,1 e 0,5 mol L-1, e na fracao nao labil, extraida por HCl 1 mol L-1, representando potencial de eutroficacao das aguas. As aplicacoes de fertilizantes fosfatados na adubacao de correcao e de manutencao nos vinhedos com maior tempo de cultivo aumentaram os teores de P na fracao orgânica extraida por NaHCO3 na camada de 0-5 cm, e na fracao moderadamente labil extraida por NaOH 0,1 mol L-1, ate 20 cm de profundidade.}, number={2}, journal={Revista Brasileira de Ciencia do Solo}, author={Schmitt, D.E. and Comin, J.J. and Gatiboni, L.C. and Tiecher, T. and Lorensini, F. and Melo, G.W.B. and Girotto, E. and Guardini, R. and Heinzen, J. and Brunetto, G.}, year={2013}, pages={472–481} }
 @article{brunetto_lorensini_ceretta_gatiboni_trentin_girotto_miotto_lourenzi_melo_2013, title={Soil Phosphorus Fractions in a Sandy Typic Hapludaft as Affected by Phosphorus Fertilization and Grapevine Cultivation Period}, volume={44}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84880640450&partnerID=MN8TOARS}, DOI={10.1080/00103624.2013.794819}, abstractNote={The purpose of this study was to quantify the phosphorus (P) fractions in phosphate-fertilized sandy soils under grapevines. Soil was sampled from a grassland site and two vineyards (13 and 31 years old) in the State Rio Grande do Sul, Brazil, from the layers 0–5, 5–10, 10–15, 15–20, and 20–40 cm deep. The samples were prepared and P fractions were assessed by chemical fractionation. Phosphate fertilization of the vineyard soils increased P contents to a depth of 40 cm, especially in the more recalcitrant fractions but detectable in the more labile fractions as well, which are plant available and may increase the risk of environmental contamination. Phosphate fertilizers and the period of grapevine cultivation had little effect on the levels of organic P forms, whereas cover crops in vineyards could be an appropriate strategy to increase or maintain the levels of soil organic matter and the levels of organic P over the years.}, number={13}, journal={Communications in Soil Science and Plant Analysis}, author={Brunetto, G. and Lorensini, F. and Ceretta, C.A. and Gatiboni, L.C. and Trentin, G. and Girotto, E. and Miotto, A. and Lourenzi, C.R. and Melo, G.W.}, year={2013}, pages={1937–1950} }
 @article{gatiboni_brunetto_rheinheimer_kaminski_pandolfo_veiga_flores_lima_girotto_copetti_2013, title={Spectroscopic quantification of soil phosphorus forms by <sup>31</sup>P-NMR after nine years of organic or mineral fertilization,Quantificação espectroscópica de formas de fósforo do solo por <sup>31</sup>p-rnm após nove anos de uso de fertilizantes orgânicos ou minerais}, volume={37}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84880744487&partnerID=MN8TOARS}, DOI={10.1590/S0100-068320130003000010}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Gatiboni, L.C. and Brunetto, G. and Rheinheimer, D.S. and Kaminski, J. and Pandolfo, C.M. and Veiga, M. and Flores, A.F.C. and Lima, M.A.S. and Girotto, E. and Copetti, A.C.C.}, year={2013}, pages={640–648} }
 @article{guardini_comin_schmitt_tiecher_bender_santos_mezzari_oliveira_gatiboni_brunetto_2012, title={Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system}, volume={93}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84863553500&partnerID=MN8TOARS}, DOI={10.1007/s10705-012-9511-3}, number={2}, journal={Nutrient Cycling in Agroecosystems}, author={Guardini, R. and Comin, J.J. and Schmitt, D.E. and Tiecher, T. and Bender, M.A. and Santos, D.R. and Mezzari, C.P. and Oliveira, B.S. and Gatiboni, L.C. and Brunetto, G.}, year={2012}, pages={215–225} }
 @article{knoblauch_ernani_walker_krutz_varco_gatiboni_deschamps_2012, title={Ammonia volatilization in waterlogged soils influenced by the form of ureia application,Volatilização de Amônia em Solos Alagados Influenciada pela Forma de Aplicação de Ureia}, volume={36}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84865240815&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832012000300012}, abstractNote={Ammonia volatilization and nitrification/denitrification are the two major N loss mechanisms in rice production. If N fertilizer is not managed appropriately, N recovery by rice plants can be low. The purpose of this study was to quantify ammonia volatilization in flooded soils influenced by the urea application method. A greenhouse study was conducted to quantify the potential of N loss via ammonia volatilization in flooded soils influenced by the urea application method. Two experiments were carried out, one in Mississippi, USA, with a thermic Vertic Haplaquepts and one in Santa Catarina, Brazil, with an Entisol Aeric soil, respectively. Ammonia was trapped in sponge sorbers impregnated with phosphoric acid and placed in PVC tubes (diameter 15 cm, length 60 cm), which were set in buckets containing a 15 cm soil layer without plants. Urea was applied at a rate of 353 mg/pot of N, equivalent to 200 kg ha-1 N, as follows: 1) a non-treated control (0 N); 2) urea applied to the surface of moist soil (80 % of field capacity) without flooding; 3) urea solubilized in deionized water and applied to the flood water; 4) prilled urea, applied to the flood water; 5) urea incorporated into mud followed by soil flooding and 6) urea applied on the surface of a dry soil followed by flooding 48 hours later. The sorbers were exchanged 1, 3, 6, 9, 13, 17, and 22 days after urea application. Water pH and ammonium concentration were determined in the flood water above the soil surface. Ammonia emission varied with the form of urea application, similarly in both soils. N losses were negligible in the control. Losses were lowest when urea was incorporated into mud followed by soil flooding and second lowest when applied to dry soil followed by flooding 48 h later (losses of, respectively, 4 and 15 % from the USA soil and 6 and 10 % from the Brazilian soil). Losses were highest when urea was applied to the flood water, be it in liquid (34 % in Mississsippi and 38 % in Santa Catarina) or in solid form (29 % in Mississsippi and 37 % in Santa Catarina), followed by urea applied to wet soil without flooding (26 % in Mississsippi and 22 % in Santa Catarina). In conclusion, to avoid excessive ammonia loss from waterlogged soils, urea should be incorporated into the mud or applied to dry soil, followed by immediate flooding in both cases.}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Knoblauch, R. and Ernani, P.R. and Walker, T.W. and Krutz, L.J. and Varco, J.J. and Gatiboni, L.C. and Deschamps, F.C.}, year={2012}, pages={813–821} }
 @article{pértile_albuquerque_gatiboni_costa_warmling_2012, title={Application of alkaline waste from pulp industry to acid soil with pine,Aplicação de Resíduo Alcalino da Indústria de Celulose em Solo Ácido Cultivado Com Pínus}, volume={36}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84865204765&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832012000300024}, abstractNote={In Brazil extensive areas are covered with pine forests, planted for pulp and paper production. This industry generates solid alkaline waste, such as dregs. The application of this dregs to forest soils is an alternative for soil acidity correction and plant nutrient supply, as well as a solution for its proper disposal. The purpose of this study was to compare the residual effect of surface application of dregs and dolomitic lime on (a) changes in the physical and chemical properties of an acidic soil and (b) pine tree development. The experiment was carried out in 2004 in Bocaina do Sul, Santa Catarina, consisting of the application of increasing dreg and lime rates to a Pinus taeda L. production area, on a Humic Cambisol, in a randomized block design with four replications and 10 x 10 m plots. The treatments consisted of levels of soil acidity amendments corresponding to the recommendations by the SMP method to reach pH 5.5 in the 0-20 cm layer, as follows: no soil amendment; dregs at 5.08 (1/4 SMP), 10.15 (1/2 SMP) and 20.3 Mg ha-1 (1 SMP); and lime at 8.35 (1/2 SMP) and 16.7 Mg ha-1 (1 SMP). Soil layers were sampled in 2010 for analyses of soil chemical and physical properties. The diameter at breast height of the 6.5 year old pine trees was also evaluated. Surface application of dregs improved soil chemical fertility by reducing acidity and increasing base saturation, similar to liming, especially in surface layers. Dregs, comparable to lime, reduced the degree of clay flocculation, but did not affect the soil physical quality. There was no effect of the amendments on increase in pine tree diameter. Thus, the alternative to raise the pH in forest soils to 5.5 with dregs is promising for the forestry sector with a view to dispose of the waste and increase soil fertility.}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Pértile, P. and Albuquerque, J.A. and Gatiboni, L.C. and Costa, A. and Warmling, M.I.}, year={2012}, pages={939–950} }
 @article{brunetto_comin_schmitt_guardini_mezzari_oliveira_moraes_gatiboni_lovato_ceretta_2012, title={Changes in soil acidity and organic carbon in a sandy typic hapludalf after medium-term pig-slurry and deep-litter application,Alterações na acidez do solo e no carbono orgânico em um argissolo com histórico de aplicação de dejetos líquidos de suínos e cama sobreposta}, volume={36}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84872745708&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832012000500026}, abstractNote={Successive applications of liquid swine waste to the soil can increase the contents of total organic carbon and nutrients and change acidity-related soil chemical properties. However, little information is available on the effects of swine waste application in solid form, as of swine deep-litter. The objective of this study was to evaluate alterations of organic carbon and acidity-related properties of a soil after eight years of pig slurry and deep-litter application. In the eighth year of a field experiment established in Braco do Norte, Santa Catarina (SC) on a sandy Typic Hapludalf samples were taken (layers 0-2.5; 2.5-5; 5-10; 10-15; 15-20 and 20-30 cm) from unfertilized plots and plots with pig slurry or deep-litter applications, providing the simple or double rate of N requirement of Zea mays and Avena strigosa in rotation. Soil total organic carbon, water pH, exchangeable Al, Ca and Mg, and cation exchange capacity (CECeffective and CECpH7.0), H+Al, base saturation, and aluminum saturation were measured. The application of pig slurry and deep-litter for eight years increased total organic carbon and CEC in all soil layers. The pig slurry and deep-litter applications reduced active acidity and aluminum saturation and increased base saturation down to a depth of 30 cm. Eight years of pig slurry application did not affect soil acidity.}, number={5}, journal={Revista Brasileira de Ciencia do Solo}, author={Brunetto, G. and Comin, J.J. and Schmitt, D.E. and Guardini, R. and Mezzari, C.P. and Oliveira, B.S. and Moraes, M.P. and Gatiboni, L.C. and Lovato, P.E. and Ceretta, C.A.}, year={2012}, pages={1620–1628} }
 @article{schoninger_gatiboni_linhares_2012, title={Mehlich 3 method as substituent to the HCl method for extraction of Copper and Zinc in soils from Southern Brazil with high levels of organic matter,Método Mehlich 3 como substituinte ao HCl para extração de Cobre e Zinco em solos com alto teor de matéria orgânica do sul do Brasil}, volume={42}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84864812127&partnerID=MN8TOARS}, DOI={10.1590/S0103-84782012000700010}, abstractNote={In this study were compared two methods of extraction of copper (Cu) and zinc (Zn) in soils with organic matter (OM) higher than 50g kg-1. The extraction methods compared were: Extraction with HCl 0.1mol L-1 (standard method for the states of Rio Grande do Sul and Santa Catarina) and Mehlich 3. This work was performed at the Laboratory of Soil Chemistry and Fertility, Santa Catarina State University (UDESC), in 2009. The two extraction methods were applied to 286 soil samples from the Soil Analysis Public Laboratory of UDESC, all with more than 50g kg-1 OM. The copper and zinc in extracts were determined by flame atomic absorption spectrometry. The results showed significant correlation between the methods, Cu (r=0.80) and Zn (r=0.93). The solution Mehlich 3 extracted more copper and less zinc when compared to the solution of HCl 0.1mol L-1. The Mehlich 3 proved to be efficient in the extraction of copper and zinc in soils with high OM content, which may replace the current method.}, number={7}, journal={Ciencia Rural}, author={Schoninger, E.L. and Gatiboni, L.C. and Linhares, D.}, year={2012}, pages={1200–1203} }
 @article{guardini_comin_santos_gatiboni_tiecher_schmitt_bender_filho_oliveira_brunetto_2012, title={Phosphorus accumulation and pollution potential in a Hapludult fertilized with pig manure,Acúmulo e potencial contaminante do fósforo em um Argissolo com aplicação de dejetos de suínos}, volume={36}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84868295569&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832012000400027}, abstractNote={Successive applications of pig litter to the soil surface can increase the phosphorus (P) content and alter its adsorption, promoting P transfer to surface or subsurface waters. The purpose of this study was to evaluate P accumulation and the pollution potential of a soil after application of pig litter. In March 2010, eight years after the installation of an experiment in Braco do Norte, Santa Catarina, SC, Brazil, on a Typic Hapludult, soil was sampled (layers 0-2.5, 2.5-5, 5-10, 10-15, 15-20 and 20-30 cm) after the following fertilization treatments: no pig litter fertilization, pig slurry application and pig manure application. In this period, 694 and 1,890 kg P2O5 ha-1 were applied in the treatments with pig slurry and pig manure, respectively. The P content was determined, based on Mehlich-1, anion exchange resin (AER), 0.01 mol L-1 CaCl2 and total P in the samples. The adsorption isotherm parameters were also determined by the Langmuir and Koski-Vahala & Hartikainem models in the layers 0-2.5 and 20-30 cm. The application of 1,890 kg P2O5 ha-1 in the form of pig manure led to P accumulation, as evidenced by Mehlich-1, down to a depth of 15 cm, by AER and 0.01 mol L-1 CaCl2 down to 20 cm and by total P to 30 cm. After application of 1,890 kg P2O5 ha-1 in the form of pig manure, the values of maximum P adsorption capacity were lowest in the deepest layer (20-30 cm), indicating the occupation of part of the adsorption sites of the particles. The application of swine manure to the soil over eight years increased the P quantity in the soil solution of the surface layer, indicating environmental contamination risk for surface and subsurface waters.}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Guardini, R. and Comin, J.J. and Santos, D.R. and Gatiboni, L.C. and Tiecher, T. and Schmitt, D. and Bender, M.A. and Filho, P.B. and Oliveira, P.A.V. and Brunetto, G.}, year={2012}, pages={1333–1342} }
 @article{schoninger_gatiboni_ernani_2012, title={Rhizosphere pH and phosphorus forms in an Oxisol cultivated with soybean, brachiaria grass, millet and sorghum}, volume={69}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84859297294&partnerID=MN8TOARS}, DOI={10.1590/S0103-90162012000400004}, abstractNote={Plants have shown different responses to fertilization with rock phosphate, including responses through alteration of the attributes of rhizospheric soil. The objective of this study was to evaluate soil pH alterations and alterations in the contents of forms of phosphorus in the rhizosphere of soil fertilized with rock phosphate as a result of cultivation of species of plants. An experiment was developed under greenhouse conditions to evaluate alterations in the pH and in the forms of phosphorus in the rhizosphere of an Oxisol fertilized with rock phosphate and cultivated with four species. Treatments consisted of the cultivation of four species of soybean - Glycine max (L.) Merrill, brachiaria grass - Brachiaria brizantha Hochst Stapf, millet - Pennisetum glaucum (L.) R. Brown, and sorghum - Sorghum bicolor (L.) Moench grown in PVC columns filled with soil and divided with a nylon screen (25 µm mesh) to impede root growth in part of the column. After 45 days of cultivation, the soil was divided into the layers of 0-1, 1-2, 2-3, 3-4, 4-5, 5-7, 7-9, and 9-14 mm from the rhizoplane and air dried to determine pH and P contents through Hedley fractionation. In the 1-2 and 2-3 mm layers, soybean cultivation caused an increase in pH when compared to the control treatment (without plants). In the other layers, there were no alterations in pH due to cultivation of plants. The cultivation of millet, brachiaria grass, and sorghum reduced the inorganic P content in the most labile forms only in the 0-1 mm layer from the rhizoplane.}, number={4}, journal={Scientia Agricola}, author={Schoninger, E.L. and Gatiboni, L.C. and Ernani, P.R.}, year={2012}, pages={259–264} }
 @article{tasca_ernani_rogeri_gatiboni_cassol_2011, title={Ammonia volatilization following soil application of conventional urea or urea with urease inhibitor,Volatilização De Amônia do solo após a aplicação de ureia convencional ou com inibidor de urease}, volume={35}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-79958785746&partnerID=MN8TOARS}, DOI={10.1590/S0100-06832011000200018}, abstractNote={Ammonia volatilization is an important process of N loss which decreases the use efficiency of N by plants when urea is applied on the soil surface. To overcome this problem, some chemical compounds were mixed with urea to inhibit the urease action. The purpose of this study was to compare applications of an alternative fertilizer with urease inhibitor to reduce ammonia volatilization with conventional urea, under certain environmental and soil conditions. Four experiments were carried out in 2007 and 2008, under laboratory conditions, with samples of a Humic Haplumbrept. The treatments varied according to each experiment in terms of soil conditions, such as pH (4.0, 5.5, 6.3 and 6.8), soil water content (5, 10 or 20 % moisture), temperature (18 or 35 oC), aside from the fertilizer physical state (solid or liquid) and application method (over the surface or soil-incorporated). The experimental units consisted of plastic trays into which 12 kg of soil (dry basis) were filled in a 15 cm layer. Ammonia gas traps were installed across the soil surface. Frequent measurements were performed during the first 28 days of soil-fertilizer incubation. The peak of ammonia volatilization from the soil occurred in the first week after the application of traditional urea, and two or three days later for urea with urease inhibitor. Ammonia loss was not always higher from conventional than from treated urea, nor from solid than from liquid fertilizers. Ammonia volatilization increased with increases in soil pH, temperature and N rate and was lower at the lowest (5 %) and highest (20 %) soil moisture content. For surface-applied fertilizers, the maximum daily N loss rate was 14 kg ha-1 and the total cumulative loss ranged from 2 to 50 % of the applied N, depending mainly on the physical state of the fertilizer, temperature and on soil moisture. Soil incorporation of urea fertilizers was the best option to minimize ammonia volatilization in all treatments.}, number={2}, journal={Revista Brasileira de Ciencia do Solo}, author={Tasca, F.A. and Ernani, P.R. and Rogeri, D.A. and Gatiboni, L.C. and Cassol, P.C.}, year={2011}, pages={493–509} }
 @article{gatiboni_coimbra_denardin_wildner_2011, title={Microbial biomass and soil fauna during the decomposition of cover crops in no-tillage system,Biomassa microbiana e fauna do solo durante a decomposição de plantas de cobertura em sistema plantio direto}, volume={35}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-80054981301&partnerID=MN8TOARS}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Gatiboni, L.C. and Coimbra, J.L.M. and Denardin, R.B.N. and Wildner, L.P.}, year={2011}, pages={1151–1157} }
 @article{ceretta_lorensini_brunetto_girotto_gatiboni_lourenzi_tiecher_de conti_trentin_miotto_2010, title={Phosphorus fractions in soil after sucessive pig slurry applications in no-tillage system,Frações de fósforo no solo após sucessivas aplicações de dejetos de suínos em plantio direto}, volume={45}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-77957225438&partnerID=MN8TOARS}, DOI={10.1590/S0100-204X2010000600009}, abstractNote={The objective of this work was to quantify the accumulation of phosphorus fractions in the soil subjected to successive pig slurry applications in a no-tillage system. At Santa Maria, Rio Grande do Sul state, Brazil, 0, 20, 40 and 80 m3 ha-1 doses of pig slurry were broadcasted for seven years on Argissolo Vermelho arenoso (Arenic Hapludult) before sowing each winter or summer crop, totalizing 0, 584, 1,168 and 2,336 kg ha-1 of P from pig slurry. Soil samples were collected in 0-2, 4-6, 8-10, 14-16 and 20-25 cm layers and submitted to P fractionation. Applications of pig slurry during seven years increased P contents to a depth of 25 cm, especially in the inorganic fractions extractable by anion exchange resin, NaHCO3 0.5 mol L-1 and NaOH 0.1 mol L-1. Pig slurry doses did not increase P content in organic fractions extracted by NaHCO3 0.5 mol L-1, but increased the content of organic fractions extracted by NaOH 0.5 e 0.1 mol L-1. Pig slurry applied to soil for large period has little effect on the P partition in inorganic and organic fractions. Successive pig slurry applications increase P contents in the soil predominantly in labile fractions, which can represent a potential risk for waterbeds contamination.}, number={6}, journal={Pesquisa Agropecuaria Brasileira}, author={Ceretta, C.A. and Lorensini, F. and Brunetto, G. and Girotto, E. and Gatiboni, L.C. and Lourenzi, C.R. and Tiecher, T.L. and De Conti, L. and Trentin, G. and Miotto, A.}, year={2010}, pages={593–602} }
 @article{kaminski_moterle_rheinheimer_gatiboni_brunetto_2010, title={Potassium availability in a hapludalf soil under long term fertilization,Disponibilidade de potássio em argissolo com histórico de adubação}, volume={34}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-77956927476&partnerID=MN8TOARS}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Kaminski, J. and Moterle, D.F. and Rheinheimer, D.D.S. and Gatiboni, L.C. and Brunetto, G.}, year={2010}, pages={783–791} }
 @article{da silva_albuquerque_gatiboni_marangoni_2009, title={Ash biomass forest: Alteration in the atributes of acid soils from santa catarina plateau and eucalyptus plants,Cinza de biomassa florestal: Alterações nos atributos de solos ácidos do planalto catarinense e em plantas de eucalipto}, volume={10}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84883287197&partnerID=MN8TOARS}, number={6}, journal={Scientia Agraria}, author={Da Silva, F.R. and Albuquerque, J.A. and Gatiboni, L.C. and Marangoni, J.M.}, year={2009}, pages={475–482} }
 @article{brunetto_ceretta_kaminski_melo_girotto_trentin_lourenzi_vieira_gatiboni_2009, title={Grapes yield and chemistry composition in Cabernet Sauvignon grapevine with nitrogen fertilization,Produção e composição química da uva de videiras Cabernet Sauvignon submetidas à adubação nitrogenada}, volume={39}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-70350044191&partnerID=MN8TOARS}, number={7}, journal={Ciencia Rural}, author={Brunetto, G. and Ceretta, C.A. and Kaminski, J. and Melo, G.W. and Girotto, E. and Trentin, E.E. and Lourenzi, C.R. and Vieira, R.C.B. and Gatiboni, L.C.}, year={2009}, pages={2035–2041} }
 @article{medeiros_albuquerque_mafra_rosa_gatiboni_2008, title={Calcium:magnesium ratio in amendments of soil acidity: Nutrition and initial development of corn plants in a Humic Alic Cambisol,Relação cálcio:magnésio do corretivo da acidez do solo na nutrição e no desenvolvimento inicial de plantas de milho em um Cambissolo Húmico Álico}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-79958704944&partnerID=MN8TOARS}, number={4}, journal={Semina:Ciencias Agrarias}, author={Medeiros, J.C. and Albuquerque, J.A. and Mafra, A.L. and Rosa, J.D. and Gatiboni, L.C.}, year={2008}, pages={799–806} }
 @article{dos santos_gatiboni_kaminski_2008, title={Factors affecting the phosphorus availability and the fertilization management in no-tillage system,Fatores que afetam a disponibilidade do fósforo e o manejo da adubação fosfatada em solos sob sistema plantio direto}, volume={38}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-41149101040&partnerID=MN8TOARS}, DOI={10.1590/S0103-84782008000200049}, abstractNote={The basic phenomena of phosphorus dynamics in soil is important to define the rate and application manners of phosphates fertilizers. The forms and availability of phosphorus vary with the soil characteristics and properties. In young soils, the calcium phosphates are the main source to organisms. On the other hand, in highly weathered soils the organic phosphorus cycling assumes great importance in the maintenance of the biological bioavailability, although it is insufficient to economical crop productivity. In tropical and subtropical cultivated soils, the soil phosphorus in solution is controlled by phosphorus adsorbed at functional groups of inorganic colloids. The phosphorus diagnosis is made by soils analysis at different methodologies, each one with their advantages and limitations. The decision on adding phosphate and to the rate define is more dependent on the calibration between the value extracted with the crop yield than the extraction method. The elevation of phosphorus availability can be made in corrective or gradual addition. The corrective fertilization is more efficient, and maybe the only alternative, for phosphorus deficiency correction in deeper soil layers. The correction of phosphorus deficiency in deeper layers after the no-tillage system adoption is difficult. The superficial phosphate application in no-tillage seems not to be a good economical alternative and can become an environmental problem. The research must be intensified focusing among others: (a) phosphorus fractions in soil and crop yield; (b) phosphates fertilizers application in no-tillage system; (c) relation of phosphorus availability with exchangeable aluminum and compacted soil layers in soil deep; (d) monitoring of transferred phosphate from soil to aquatic systems.}, number={2}, journal={Ciencia Rural}, author={Dos Santos, D.R. and Gatiboni, L.C. and Kaminski, J.}, year={2008}, pages={576–586} }
 @article{santos rheinheimer_martinazzo_gatiboni_kaminski_silva_2008, title={Microbial phosphorus fluctuation in a hapludalf under natural pasture, with cut off and forage species introduction, fertilized in different times,Amplitude no fósforo microbiano em um argissolo em pastagem nativa submetida à roçada e à introdução de espécies forrageiras com fertilização fosfatada em diferentes épocas}, volume={30}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-72749104782&partnerID=MN8TOARS}, DOI={10.4025/actasciagron.v30i4.5319}, abstractNote={In very weathered soils, the temporary phosphorus immobilization by soil microbial biomass (SMB) could be a mechanism to reduce P adsorption. This study was carried out to evaluate the microbial phosphorus (Pm) content fluctuation in a Hapludalf under natural pasture with cut off and exotic forage species introduction and fertilized with phosphorus fertilizers. The experiment was conducted in 1997 with five treatments: control without P, natural gafsa phosphate, triple superphosphate, triple superphosphate + lime, and single superphosphate + lime. In 2002, natural pasture was cut off and a mix of ryegrass and arrowleaf clover was planted in a no-tillage system. The original plots were split into three sub-plots: without P reapplication; P reapplication after cut off in winter, and P reapplication after cut off in spring. The first Pm evaluation was made 16 days before the first cut off, considered the beginning of the experiment (day 0). Soil samples for Pm evaluation were taken at 0, 25, 36, 55, 82, 111, 139, 163, 171, 181, 197, 219, 229, 248, 274, and 316 days after the beginning of the experiment. The cut off stimulated Pm immobilization by microbial biomass. Part of the phosphorus from fertilizers was temporary immobilized by microbial biomass.}, number={4}, journal={Acta Scientiarum - Agronomy}, author={Santos Rheinheimer, D. and Martinazzo, R. and Gatiboni, L.C. and Kaminski, J. and Silva, L.S.}, year={2008}, pages={561–567} }
 @article{gatiboni_kaminski_rheinheimer_brunetto_2008, title={Soil microbial biomass phosphorus and activity of acid phosphatases during decline of soil available phosphorus,Fósforo da biomassa microbiana e atividade de fosfatases ácidas durante a diminuição do fósforo disponível no solo}, volume={43}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-52649111690&partnerID=MN8TOARS}, number={8}, journal={Pesquisa Agropecuaria Brasileira}, author={Gatiboni, L.C. and Kaminski, J. and Rheinheimer, D.D.S. and Brunetto, G.}, year={2008}, pages={1085–1091} }
 @article{gatiboni_brunetto_kaminski_dos santos rheinheimer_ceretta_basso_2008, title={Soil phosphorus forms after successive pig slurry application in a native pasture,Formas de fósforo no solo após sucessivas adições de dejeto líquido de suinos em pastagem natural}, volume={32}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-55849126650&partnerID=MN8TOARS}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Gatiboni, L.C. and Brunetto, G. and Kaminski, J. and Dos Santos Rheinheimer, D. and Ceretta, C.A. and Basso, C.J.}, year={2008}, pages={1753–1761} }
 @article{gatiboni_kaminski_dos santos rheinheimer_flores_2007, title={Bioavailability of soil phosphorus forms in notillage system,Biodisponibilidade de formas de fósforo acumuladas em solo sob sistema plantio direto}, volume={31}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-35348978378&partnerID=MN8TOARS}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Gatiboni, L.C. and Kaminski, J. and Dos Santos Rheinheimer, D. and Flores, J.P.C.}, year={2007}, pages={691–699} }
 @article{martinazzo_dos santos_gatiboni_brunetto_kaminski_2007, title={Microbial phosphorus in a soil under no-tillage as affected by soluble phosphorus addition,Fósforo microbiano do solo sob sistema plantio direto em resposta à adição de fosfato solúvel}, volume={31}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-35349004086&partnerID=MN8TOARS}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Martinazzo, R. and Dos Santos, D.R. and Gatiboni, L.C. and Brunetto, G. and Kaminski, J.}, year={2007}, pages={563–570} }
 @article{ranno_da silva_gatiboniw_rhoden_2007, title={Phosphorus adsorption capacity in lowland soils of rio grande do sul state,Capacidade de adsorçao de f́sforo em solos de vàrzea do estado do rio grande do sul}, volume={31}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-34248335381&partnerID=MN8TOARS}, number={1}, journal={Revista Brasileira de Ciencia do Solo}, author={Ranno, S.K. and Da Silva, L.S. and Gatiboniw, L.C. and Rhoden, A.C.}, year={2007}, pages={21–28} }
 @article{gatiboni_kaminski_dos santos_2005, title={Alterations in soil phosphorus forms after successive extractions with Mehlich-1, Mehlich-3 and anion exchange resin methods,Modificações nas formas de fósforo do solo após extrações sucessivas com Mehlich-1, Mehlich-3 e resina trocadora de ânions}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33748849435&partnerID=MN8TOARS}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Gatiboni, L.C. and Kaminski, J. and Dos Santos, D.R.}, year={2005}, pages={363–371} }
 @article{brunetto_gatiboni_dos santos_saggin_kaminski_2005, title={Critical level and crop yield response to potassium in a typic hapludalf under no-tillage,Nível crítico e resposta das culturas ao potássio em um argissolo sob sistema plantio direto}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33748874469&partnerID=MN8TOARS}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Brunetto, G. and Gatiboni, L.C. and Dos Santos, D.R. and Saggin, A. and Kaminski, J.}, year={2005}, pages={565–571} }
 @article{kaminski_dos santos_gatiboni_brunetto_da silva_2005, title={Efficiency of superficial and incorporated liming on a hapludalf prior to no-tillage implementation,Eficiência da calagem superficial e incorporada precedendo o sistema plantio direto em um argissolo sob pastagem natural}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33748863914&partnerID=MN8TOARS}, number={4}, journal={Revista Brasileira de Ciencia do Solo}, author={Kaminski, J. and Dos Santos, D.R. and Gatiboni, L.C. and Brunetto, G. and Da Silva, L.S.}, year={2005}, pages={573–580} }
 @article{gatiboni_dos santos rheinheimer_claro flores_anghinoni_kaminski_de lima_2005, title={Phosphorus forms and availability assessed by<sup>31</sup>P-NMR in successively cropped soil}, volume={36}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-30744439546&partnerID=MN8TOARS}, DOI={10.1080/00103620500301917}, abstractNote={Abstract Soils under no‐tillage gradually increase in organic matter and phosphorus (P) content from the top layer. Because of lack of knowledge about the organic phosphorus fraction contribution to plant nutrition, this research was conducted to estimate the availability of phosphorus fractions to plants. Soil samples of a very clayey Rhodic Hapludox that received 0, 156 and 312 kg P ha−1 were submitted to 15 successive crops in pots without replacing P extracted by plants. 31P nuclear magnetic resonance analysis was performed to detect P fractions before cultivation and after the sixth, ninth and fifteenth crops. Inorganic phosphorus was the unique P fraction acting as P source to plants in soils with previous P addition. Contribution of organic P was observed only when inorganic P content was extremely low, with plants showing severe P stress. Contribution of organic P was not enough to supply the required P for normal plant growth.}, number={19-20}, journal={Communications in Soil Science and Plant Analysis}, author={Gatiboni, L.C. and Dos Santos Rheinheimer, D. and Claro Flores, A.F. and Anghinoni, I. and Kaminski, J. and De Lima, M.A.S.}, year={2005}, pages={2625–2640} }
 @article{bortoluzzi_dos santos_kaminski_gatiboni_tessier_2005, title={Potassium fertilization affecting the mineralogy of a rhodic acrisol in Rio Grande do sul - Brazil,Alterações na mineralogia de um argissolo do Rio Grande do sul submetido à fertilização potássica}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33748856176&partnerID=MN8TOARS}, number={3}, journal={Revista Brasileira de Ciencia do Solo}, author={Bortoluzzi, E.C. and Dos Santos, D.R. and Kaminski, J. and Gatiboni, L.C. and Tessier, D.}, year={2005}, pages={327–335} }
 @article{gatiboni_kaminski_rheinheimer_brunetto_2003, title={Superphosphate and rock phosphates as phosphorus sources for grass-clover pasture on a limed acid soil in Southern Brazil}, volume={34}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-0141754025&partnerID=MN8TOARS}, DOI={10.1081/CSS-120024782}, abstractNote={The native pastures of Rio Grande do Sul, Southern Brazil, have low productivity because of summer and spring species growing seasons on low fertility soils. The objective of this research was to evaluate sources of phosphorus (P) and lime rates surface applied on natural pasture for exotic cold season forages species introduction. The results showed that the rock phosphates Gafsa and Arad were efficient sources of P in moderate to high soil acidity. The soil acidity attenuation by liming increased the forage production and the efficiency of the soluble superphosphate, but reduced the performance of rock phosphates. The surface liming was effective in neutralizing exchangeable aluminum only in the topsoil layers.}, number={17-18}, journal={Communications in Soil Science and Plant Analysis}, author={Gatiboni, L.C. and Kaminski, J. and Rheinheimer, D.S. and Brunetto, G.}, year={2003}, pages={2503–2514} }
 @article{gatiboni_kaminski_pellegrini_brunetto_saggin_flores_2000, title={Influence of phosphorus fertilization and introduction of winter forage species on forage offer from natural pasture,Influência da adubação fosfatada e da introdução de espécies forrageiras de inverno na oferta de forragem de pastagem natural}, volume={35}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-0034356067&partnerID=MN8TOARS}, number={8}, journal={Pesquisa Agropecuaria Brasileira}, author={Gatiboni, L.C. and Kaminski, J. and Pellegrini, J.B.R. and Brunetto, G. and Saggin, A. and Flores, J.P.C.}, year={2000}, pages={1663–1668} }