@article{mosier_kelly_ozlu_robertson_2024, title={Switchgrass (Panicum virgatum L.) cultivars have similar impacts on soil carbon and nitrogen stocks and microbial function}, url={https://doi.org/10.1111/gcbb.13125}, DOI={10.1111/gcbb.13125}, abstractNote={Abstract}, journal={GCB Bioenergy}, author={Mosier, Samantha and Kelly, Lauren and Ozlu, Ekrem and Robertson, G. Philip}, year={2024}, month={Mar} }
 @article{ozlu_arriaga_2024, title={Temporal variations in soil aggregate re-formation behaviors after disturbance by tillage}, volume={1}, ISSN={["1435-0661"]}, url={https://doi.org/10.1002/saj2.20619}, DOI={10.1002/saj2.20619}, abstractNote={Abstract}, journal={SOIL SCIENCE SOCIETY OF AMERICA JOURNAL}, author={Ozlu, Ekrem and Arriaga, Francisco J.}, year={2024}, month={Jan} }
 @article{gozukara_dengiz_shahbazi_senol_ozlu_silva_babur_2023, title={Rapid assessment of elemental concentrations using pXRF and remote sensing on a dried lakebed}, volume={219}, ISSN={["1095-922X"]}, DOI={10.1016/j.jaridenv.2023.105087}, journal={JOURNAL OF ARID ENVIRONMENTS}, author={Gozukara, Gafur and Dengiz, Orhan and Shahbazi, Farzin and Senol, Huseyin and Ozlu, Ekrem and Silva, Sergio Henrique Godinho and Babur, Emre}, year={2023}, month={Dec} }
 @article{battaglia_thomason_ozlu_rezaei-chiyaneh_fike_diatta_uslu_babur_schillaci_2023, title={Short-Term Crop Residue Management in No-Tillage Cultivation Effects on Soil Quality Indicators in Virginia}, volume={13}, ISSN={["2073-4395"]}, url={https://www.mdpi.com/2073-4395/13/3/838}, DOI={10.3390/agronomy13030838}, abstractNote={The use of crop residues for biofuel production has the potential to provide environmental and economic benefits to modern societies. Because of the profound impacts that crop residues have on agricultural productivity and soil health, a sustainable utilization of these residues is required. Thus, we determined crop yield and quality response for a range of biomass retention rates in grain cropping systems. Combinations of corn (Zea mays L.) stover (0, 3.33, 6.66 and 10 Mgha−1) and wheat (Triticum aestivum L.) straw (0, 1.0, 2.0, and 3.0 Mgha−1) were soil applied in a corn-wheat/soybean (Glycine max L. Merr.) rotation in Virginia’s Coastal Plain. Corn stover (0, 3.33, 6.66, 10 and 20 Mg ha−1) was applied in a continuous corn cropping system in the Ridge/Valley province. For each system, residues were applied following grain harvest over two production cycles. Each experiment was conducted as a randomized complete block design with four replications. Two cycles of crop residue management, with retention rates of up to 20 Mg ha−1 of corn stover retention in Blacksburg, and up to 13 Mg ha−1 of corn stover and wheat straw in New Kent, had no effect on total nitrogen (TN) and carbon (TC) concentrations, CN ratios, bulk density (BD), soil pH, field capacity, permanent wilting point, plant available water and water aggregate stability across soil depths and aggregate sizes in Virginia. In one situation when residue management slightly affected BD (0–2.5 cm depth, NK1), differences across the sixteen total retained residues treatments were less than 5%, thus rendering them not biologically or environmentally meaningful. Overall, results of this study did not show any clear short-term impact, resulting from various rates of crop residue retention in Virginia cropping systems. These incipient negative impacts resulting from very low rates of residue return warrant further studies to corroborate whether these results are to be found following long-term scenarios of crop residue management.}, number={3}, journal={AGRONOMY-BASEL}, author={Battaglia, Martin L. and Thomason, Wade and Ozlu, Ekrem and Rezaei-Chiyaneh, Esmaeil and Fike, John H. and Diatta, Andre Amakobo and Uslu, Omer Suha and Babur, Emre and Schillaci, Calogero}, year={2023}, month={Mar} }
 @article{gozukara_acar_ozlu_dengiz_hartemink_zhang_2022, title={A soil quality index using Vis-NIR and pXRF spectra of a soil profile}, volume={211}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85121907969&partnerID=MN8TOARS}, DOI={10.1016/j.catena.2021.105954}, abstractNote={A soil quality index (SQI) can be used to manage the soil for potential uses and remediate limitations of soil for sustainable agriculture and ecology. The objectives of this study were to (i) characterize vertical and horizontal variations of some soil properties and SQI in a Fluventic Haploxerepts profile in Eskişehir, Turkey, (ii) compare interpolation methods for mapping the distribution of soil properties and SQI in the profile wall, and (iii) assess cubist model for predicting soil properties and SQI using individual and combined Vis-NIR and pXRF spectra in the profile. The soil profile wall (1 m deep × 1 m wide) was divided into a raster of 10 × 10 cm intervals for collecting a total of 100 soil samples. The soil samples were analyzed for soil physical, chemical properties, and elemental concentrations and scanned using Vis-NIR (350–2500 nm) and pXRF (0–8 and 0–45 kV) spectrometers. Standard scoring function was used for standardization of indicators. Weighted linear combination method was used to calculate SQI and F-AHP for assigning weights of indicators. The 100 samples were split into calibration (70%) and validation (30%) datasets. Individual or combined Vis-NIR and pXRF spectra were used in cubist model to evaluate the feasibility for predicting soil properties and SQI in the Inceptisol. Results suggested that the soil profile had a considerable variation of soil properties and SQI with depth and within horizons. The A horizon had the highest SQI. In addition, Vis-NIR had better prediction performances for pH, SOM, Fe, and Mn (R2 = 0.42–0.88), whereas pXRF had better prediction performances for EC, CaCO3, P, and Zn (R2 = 0.18–0.90). In addition, combining Vis-NIR, pXRF8, and pXRF45 had better prediction performance for sand, silt, clay, K, Cu, and SQI (R2 = 0.81–0.97). We concluded that Vis-NIR and pXRF spectra can be successfully used to predict SQI in Fluventic Haploxerepts. Combined Vis-NIR and pXRF spectra had better prediction performance for SQI.}, journal={Catena}, author={Gozukara, G. and Acar, M. and Ozlu, E. and Dengiz, O. and Hartemink, A.E. and Zhang, Y.}, year={2022} }
 @misc{ozlu_arriaga_bilen_gozukara_babur_2022, title={Carbon Footprint Management by Agricultural Practices}, volume={11}, ISSN={["2079-7737"]}, url={https://doi.org/10.3390/biology11101453}, DOI={10.3390/biology11101453}, abstractNote={Global attention to climate change issues, especially air temperature changes, has drastically increased over the last half-century. Along with population growth, greater surface temperature, and higher greenhouse gas (GHG) emissions, there are growing concerns for ecosystem sustainability and other human existence on earth. The contribution of agriculture to GHG emissions indicates a level of 18% of total GHGs, mainly from carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Thus, minimizing the effects of climate change by reducing GHG emissions is crucial and can be accomplished by truly understanding the carbon footprint (CF) phenomenon. Therefore, the purposes of this study were to improve understanding of CF alteration due to agricultural management and fertility practices. CF is a popular concept in agro-environmental sciences due to its role in the environmental impact assessments related to alternative solutions and global climate change. Soil moisture content, soil temperature, porosity, and water-filled pore space are some of the soil properties directly related to GHG emissions. These properties raise the role of soil structure and soil health in the CF approach. These properties and GHG emissions are also affected by different land-use changes, soil types, and agricultural management practices. Soil management practices globally have the potential to alter atmospheric GHG emissions. Therefore, the relations between photosynthesis and GHG emissions as impacted by agricultural management practices, especially focusing on soil and related systems, must be considered. We conclude that environmental factors, land use, and agricultural practices should be considered in the management of CF when maximizing crop productivity.}, number={10}, journal={BIOLOGY-BASEL}, author={Ozlu, Ekrem and Arriaga, Francisco Javier and Bilen, Serdar and Gozukara, Gafur and Babur, Emre}, year={2022}, month={Oct} }
 @article{ozlu_gozukara_acar_bilen_babur_2022, title={Field-Scale Evaluation of the Soil Quality Index as Influenced by Dairy Manure and Inorganic Fertilizers}, volume={14}, url={https://www.mdpi.com/2071-1050/14/13/7593}, DOI={10.3390/su14137593}, abstractNote={Long-term addition of manure increases soil organic carbon (SOC), provides nutrient supply, enhances soil quality and crop yield (CY), but may also increase global warming potential (GWP). In this study, a long-term experiment was conducted to investigate impacts of organic dairy manure and inorganic fertilizer on the spatial distribution of soil quality indicators in field scale. The experiment was initiated in 2008 (seven years), and includes three manure and two inorganic fertilizer treatments along with a control (no manure or no inorganic fertilizer addition). The study was set into a randomized complete block design with six treatments and four replications in a total of 24 plots with an equal size each of 6 × 18 m (108 m2). Soil physical, chemical and biological properties (total 26 properties) were considered as the total data set and principal component analysis (PCA) was used to determine long-term organic and inorganic fertilizer-induced changes in soil quality. Ordinary kriging interpolation methods were used to predict the spatial distributions of soil quality index (SQI) and mean soil quality values were compared with fertilization treatments by using Duncan’s test. Results showed that most measured soil quality index parameters showed significant differences (p < 0.05). The long-term dairy manure applications had positive impacts on soil quality index parameters where overall SQI scores were higher under high manure (HM) compared to medium manure (MM), low manure (LM), medium fertilizer (MF), high fertilizer (HF), control (CK) by 25%, 27%, 47%, 55% and 92%. A similar trend was observed for CY and GWP. This indicates that long-term dairy manure can be an option to increase SQI values and provide higher CY, however, this may lead to greater GWP.}, number={13}, journal={Sustainability}, publisher={MDPI AG}, author={Ozlu, Ekrem and Gozukara, Gafur and Acar, Mert and BILEN, SERDAR and Babur, Emre}, year={2022}, month={Jun}, pages={7593} }
 @article{babur_dindaroglu_danish_häggblom_ozlu_gozukara_uslu_2022, title={Spatial responses of soil carbon stocks, total nitrogen, and microbial indices to post-wildfire in the Mediterranean red pine forest}, volume={320}, url={http://dx.doi.org/10.1016/j.jenvman.2022.115939}, DOI={10.1016/j.jenvman.2022.115939}, abstractNote={Wildfire is a key ecological event that alters vegetation and soil quality attributes including biochemical attributes at spatial scale. This knowledge can provide insights into the development of better rehabilitation or restoration strategies that depend on the ecological dynamics of vegetation, fungi, and animals. The present study aimed to understand the causes and consequences of spatial variability of soil organic carbon, microbial biomass C concentrations, and soil quality indices as impacted by wildfire in a red pine forest. This study was conducted using kriging and inverse distance neighborhood similarity (IDW) interpolations methods. The carbon stocks were significantly (P = 0.002) higher in burned areas compared to those of unburned areas by 255% whereas microbial biomass carbon and microbial respiration were significantly (P < 0.0001 and P = 0.02) lower in burned areas by 66% and 90%, The Pearson's correlation analysis showed that carbon stocks were positively correlated with pH (0.61), total nitrogen (0.60) and ash quantity (0.41), but negatively correlated with microbial biomass carbon (−0.46) and nitrogen (−0.61), and microbial respiration (−0.48). The IDW interpolation method better-predicted pH, bulk density, and microbial biomass carbon and nitrogen compared to kriging interpolation, whereas the kriging interpolation method was better than IDW interpolation for the other studied soil properties. We concluded that pH, EC, SOC, C/N, MR, MBC/SOC, and MBC/MBN can be reliable indicators to monitor the effect of wildfire on forest soils. The wildfire event increased soil carbon stocks, TN, pH, and qCO2, but decreased MBC and MBN.}, journal={Journal of Environmental Management}, publisher={Elsevier BV}, author={Babur, Emre and Dindaroglu, Turgay and Danish, Subhan and Häggblom, Max M. and Ozlu, Ekrem and Gozukara, Gafur and Uslu, Omer Suha}, year={2022}, month={Oct}, pages={115939} }
 @article{bi̇len_özgül_özlü_bi̇len_2021, title={Impacts of Gümüşhane cement dust emissions on soil elemental compositions}, volume={45}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85122445795&partnerID=MN8TOARS}, DOI={10.3906/tar-2004-30}, abstractNote={The cement dust deposition can cause environmental pollution and heavy metal contamination, which negatively impacts soil nutrient availability and hence crop productivity. Thus, this study evaluates the impact of cement dust emissions on soil elemental compositions in different tillage managements. In this study, composite soil samples were taken from conventional tillage (CT), and notill (NT) managed fields under wheat-sugar beet (potato)-fallow cropping sequence. Soil samples were randomly collected from 0-30 cm depth in three replications and different distances (1, 2, 4, 6, 8, and 10 km) from a cement plant. Soil pH, clay, and CaCO3 contents were higher under CT than those under NT, whereas; sand and K contents were greater under NT management. The CT significantly decreased K content compared to those under NT by 5% in 2014. In addition, soil Mg+2 content decreased (p < 0.002) by increasing the distance. Soil Mg+2 content at 1 km was significantly higher than those at 4 km (by 3%), 2 km (by 4%), 8 km (by 10%), 6 km (by 10%), and 10 km (by 19%). Similarly, distance significantly influence soil Cu (p < 0.001), Zn+2 (p < 0.008), and Mn+2 (p < 0.0002), and K (p < 0.001), however, there were not any clear trend according to increases in distance from cement plant. The moving average of soil bacteria and fungi populations and their ratios have shown that the bacteria and fungi populations increased with distance, where increases in the fungi population under CT were more dramatic than those under NT management. Moreover, the principal component analysis showed that soils under NT were differently influenced by cement dust emission than CT managed soils. In conclusion, cement dust accumulation under both tillage practices negatively influenced soil elemental compositions and related microbial populations.}, number={6}, journal={Turkish Journal of Agriculture and Forestry}, publisher={The Scientific and Technological Research Council of Turkey (TUBITAK-ULAKBIM) - DIGITAL COMMONS JOURNALS}, author={BİLEN, Serdar and ÖZGÜL, Müdahir and ÖZLÜ, Ekrem and BİLEN, Murat}, year={2021}, pages={766–774} }
 @article{babur_uslu_battaglia_mumtaz_danish_fahad_diatta_datta_ozlu_2021, title={Nitrogen Fertilizer Effects on Microbial Respiration, Microbial Biomass, and Carbon Sequestration in a Mediterranean Grassland Ecosystem}, volume={15}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85105445748&partnerID=MN8TOARS}, DOI={10.1007/s41742-021-00336-y}, number={4}, journal={International Journal of Environmental Research}, author={Babur, E. and Uslu, Ö.S. and Battaglia, M.L. and Mumtaz, M.Z. and Danish, S. and Fahad, S. and Diatta, A.A. and Datta, R. and Ozlu, E.}, year={2021}, pages={655–665} }
 @misc{rutkoski_ozlu_2021, title={Science on the Hill: connecting research to policy through virtual Congressional meetings}, url={https://lter.kbs.msu.edu/2021/04/science-on-the-hill-connecting-research-to-policy-through-virtual-congressional-meetings/}, journal={KBS-LTER Blogs}, publisher={KBS-LTER Blogs}, author={Rutkoski, C. and Ozlu, E.}, year={2021} }
 @article{horuz_güne?_turan_demir_serdar_ozlu_karaman_f?r?ldak_2021, title={The Effects of Different Micronutrient Fertilizers on cv. Tombul Hazelnut Yield and Certain Nut Properties,Einfluss verschiedener Mikronährstoffdünger auf den Ertrag und spezifische Fruchteigenschaften der Haselnuss-Sorte ‘Tombul’}, volume={63}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85099970017&partnerID=MN8TOARS}, DOI={10.1007/s10341-021-00546-w}, number={1}, journal={Erwerbs-Obstbau}, author={Horuz, A. and Güne?, A. and Turan, M. and Demir, T. and Serdar, Ü. and Ozlu, E. and Karaman, M.R. and F?r?ldak, G.}, year={2021}, pages={107–114} }
 @article{ozlu_arriaga_2021, title={The role of carbon stabilization and minerals on soil aggregation in different ecosystems}, volume={202}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85103109609&partnerID=MN8TOARS}, DOI={10.1016/j.catena.2021.105303}, abstractNote={Soil physical structure under different land-uses is influenced by many factors and conditions in and around the soil environment, especially aggregate size distribution, aggregate stability, SOC, and soil particle size distribution. These soil properties, in turn, are also affected by a variety of mechanisms and factors. The present study focuses on increasing our understanding of the coupled interaction between C stabilization, different aggregate sizes, and the role of relative proportion of soil minerals on this interaction in different ecosystems. Five fields on two soil series were identified to study these mechanisms, where each field represented one long-term (>20 years) land-use. The Cf had lower disaggregation reduction (DR) in 1 – 2 mm aggregates, relative mass of aggregates smaller than 0.5 mm, and specific surface area (SSA) in bulk soil (BS) at 0 – 30 cm depth among non-eroded fields. However, Wf had a significantly higher C:N ratio, δ13C, and δ15N. Interestingly, the mass of 1–2 mm aggregates and DR were correlated to silt content across the five land-uses at all depths, but not with clay content. Further, the relative percentage of quartz was positively correlated with the mass of smaller aggregates. In contrast, albite and clay minerals were positively correlated with the mass of 1–2 mm aggregates, DR, and C: N of 1 – 2 mm aggregates. Moreover, SSA in BS was positively correlated with 2–4 mm aggregates but negatively correlated with aggregates smaller than 1 mm. Given the nature of how aggregates of different sizes form, soil aggregate size distribution and SSA would be as likely an important factor when considering the physical stability of SOC. In addition, the physical stabilization of SOC and aggregate size distribution appears to be affected by the dominant soil particle, which was silt with a range of 60–76% in this study.}, journal={Catena}, publisher={Elsevier BV}, author={Ozlu, Ekrem and Arriaga, Francisco J.}, year={2021}, pages={105303} }
 @article{gunes_ata_ozgul_turan_ozlu_dizman_2020, title={Available ammonium and nitrate levels of highland soil orders in Turkey at different freeze-thaw cycles}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85092703805&partnerID=MN8TOARS}, number={1}, journal={Fresenius Environmental Bulletin}, author={Gunes, A. and Ata, S. and Ozgul, M. and Turan, M. and Ozlu, E. and Dizman, M.}, year={2020}, pages={51–61} }
 @article{alhameid_singh_sekaran_ozlu_kumar_singh_2020, title={Crop rotational diversity impacts soil physical and hydrological properties under long-term no- and conventional-till soils}, volume={58}, url={http://dx.doi.org/10.1071/sr18192}, DOI={10.1071/sr18192}, abstractNote={Diversification of crop species and minimum mechanical soil disturbance are the interlinked principles of conservation agriculture that are beneficial in improving soil physical and hydrological properties, and hence crop productivity. The present study was conducted to assess the long-term impacts of crop rotational diversity and tillage on soil water infiltration (qs), soil water retention (SWR), pore size distribution (PSD), bulk density (ρb) and soil penetration resistance (SPR). The study was established in 1991 at Beresford, South Dakota, and included three crop rotation systems (2-year, maize (Zea mays L.)–soybean (Glycine max L.); 3-year, maize–soybean–wheat (Triticum aestivum L.); and 4-year, maize–soybean–wheat–oat (Avena sativa L.)) and two tillage systems (NT, no-tillage; and CT, conventional tillage). Soil samples were collected only under maize and soybean phases of the crop rotations. Our results showed that NT with 4-year rotation had the lowest ρb under maize and soybean phases (1.21 and 1.19 g cm–3 respectively) compared with the CT system. Similarly, NT with 4-year rotation decreased SPR by 20% compared to CT with 4-year rotation in the soybean phase. Soils managed under NT with 4-year rotation in the soybean phase retained 27, 28, 28, 32, 33, 31 and 26% more water compared with CT and 4-year system at 0–7.5 cm depth at 0, –0.4, –1.0, –2.5, –5.0, –10 and –30 kPa matric potentials respectively. A similar trend was observed for qs under the same treatments, in which it was 31% higher under NT than under CT, both with 4-year rotation. Data from this study showed that diversified crop rotation under NT enhanced soil physical and hydrological properties compared with CT with less diverse systems (e.g. maize–soybean).}, number={1}, journal={Soil Research}, author={Alhameid, A. and Singh, J. and Sekaran, U. and Ozlu, E. and Kumar, S. and Singh, S.}, year={2020}, pages={84–94} }
 @article{ata_gunes_ozgul_turan_yildirim_mokhtari_ozlu_2020, title={Role of freeze-thaw cycles in available Fe levels of some highland soil orders}, volume={29}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85092733191&partnerID=MN8TOARS}, number={1}, journal={Fresenius Environmental Bulletin}, author={Ata, S. and Gunes, A. and Ozgul, M. and Turan, M. and Yildirim, E. and Mokhtari, N.E.P. and Ozlu, E.}, year={2020}, pages={62–69} }
 @article{gunes_turan_sahin_sahin_gulluce_müdahir_ors_ozlu_2020, title={The Yield Responses to Crop Bioremediation Practices on Haplustept and Fluvaquent Saline-Sodic Soils}, volume={51}, ISSN={0010-3624 1532-2416}, url={http://dx.doi.org/10.1080/00103624.2020.1836196}, DOI={10.1080/00103624.2020.1836196}, abstractNote={ABSTRACT Crop production in salty-sodic soils causes poor crop growth due to ion imbalance, water stress, low hormonal and enzymatic balances. The use of rhizobacteria promoting plant growth in saline and sanitary areas (PGPR) is an economical and environmentally friendly approach that increases and eliminates the tolerance of plants to salt. Field experiments were conducted to determine the response of barley, maize and sorghum crop yields to the application of the bacteria (Halobacillus sp), which was preliminarily experimented by a greenhouse study, on two big soil groups (Haplustept and Fluvaquent). The experiment was established with four different treatments; T0 (control-no application), T1 (the gypsum application), T2 (the PGPR application), and T3 (the gypsum + PGPR application) on the high saline and sodic soils in a semi-arid region. The observations of the present study indicate positive impacts of PGPR applications on crop yield and soil productivity. The gypsum + PGPR treatment was the most effective treatment obtaining higher yields owing to significant improvement in the plant photosynthetic activity, chlorophyll content, stomatal conductance, enzymes, hormones, amino and organic acids, and crop-soil productivity. The seed inoculation with the Halobacillus sp bacteria cultures help in alleviation of stress and enhance crop productivity under the short-term gypsum application on Haplustept and Fluvaquent saline-sodic soils.}, number={21}, journal={Communications in Soil Science and Plant Analysis}, publisher={Informa UK Limited}, author={Gunes, Adem and Turan, Metin and Sahin, Ustun and Sahin, Fikrettin and Gulluce, Medine and Müdahir, Özgül and Ors, Selda and Ozlu, Ekrem}, year={2020}, month={Nov}, pages={2639–2657} }
 @article{kitir_gunes_turan_yildirim_topcuoglu_turker_ozlu_karaman_f?r?ldak_2019, title={Bio-Boron Fertilizer Applications Affect Amino Acid and Organic Acid Content and Physiological Properties of Strawberry Plant}, volume={61}, url={http://dx.doi.org/10.1007/s10341-018-0409-3}, DOI={10.1007/s10341-018-0409-3}, number={2}, journal={Erwerbs-Obstbau}, author={Kitir, N. and Gunes, A. and Turan, M. and Yildirim, E. and Topcuoglu, B. and Turker, M. and Ozlu, E. and Karaman, M.R. and F?r?ldak, G.}, year={2019}, month={Jun}, pages={129–137} }
 @article{horuz_turan_akinoglu_ozcan_gunes_korkmaz_kaya_kitir_adiloglu_tufenkci_et al._2019, title={Effects of phosphogypsum waste application on corn (Zea Maysl.) yield and nutrient contents}, volume={28}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85092732821&partnerID=MN8TOARS}, number={11 A}, journal={Fresenius Environmental Bulletin}, author={Horuz, A. and Turan, M. and Akinoglu, G. and Ozcan, C. and Gunes, A. and Korkmaz, A. and Kaya, Y. and Kitir, N. and Adiloglu, S. and Tufenkci, S. and et al.}, year={2019}, pages={8814–8822} }
 @article{yağmur_okur_özlü_okur_2019, title={Mısır Bitkisinin Demir İçeriği ve Veriminin Farklı Dozlarda Atık Su Çamuru Uygulamasına Tepkisi Üzerine Bir Ön Çalışma}, volume={5}, ISSN={1300-0225}, url={http://dx.doi.org/10.18615/anadolu.568837}, DOI={10.18615/anadolu.568837}, abstractNote={preliminary
study was carried out in order to investigate the effects of application of
treated sludge and Fe fertilizer on the yield and Fe content of maize. The
trial was conducted in randomized plots design with three replications as pot experiment
and C-955 hybrid maize was grown for silage. As basic fertilization, 200 mg kg-1
N, 100 mg kg-1 P and 150 mg kg-1 K were applied to
all of the pots. Treatments were (C) control, (T1) 5 mg kg-1Fe (Fe
in sludge) + 10 mg kg-1Fe (FeSO4,7H2O), (T2)
10 mg kg-1 Fe (Fe in sludge) + 5 mg kg-1 Fe (FeSO4,7H2O),
(T3) 15 mg kg-1 Fe (Fe in sludge) and (T4) 15 mg kg-1 Fe
(FeSO4,7H2O). Applications of sludge and Fe increased wet
weight, dry weight, plant height, leaf number and the content of N, K, Fe, Zn
and Cu of maize plant. It was concluded that application of 15 mg kg-1
Fe in sludge is sufficient for Fe need of maize. However, the obtained results
from this study were valid only for this study soil and sewage sludge and
should be used without generalization as they can vary under different
conditions such as soil and climate. Therefore, further researches are needed
on this field.&nbsp; &nbsp;}, journal={Anadolu Ege Tarımsal Araştırma Enstitüsü Dergisi}, publisher={Anadolu Ege Tarimsal Arastirmalar Enstitusu Dergisi}, author={Yağmur, Bülent and Okur, Bülent and özlü, Ekrem and Okur, Nur}, year={2019}, month={May}, pages={63–70} }
 @article{ozlu_2019, title={Opportunities Abound with Graduate Student Annual Meeting Sessions}, volume={64}, ISSN={1529-9163}, url={http://dx.doi.org/10.2134/csa2019.64.0328}, DOI={10.2134/csa2019.64.0328}, abstractNote={CSA NewsVolume 64, Issue 3 p. 30-31 Student Opportunities Abound with Graduate Student Annual Meeting Sessions Leadership, Careers, Communication, Networking and More! Ekrem Ozlu, Ekrem Ozlu eozlu@wisc.edu Department of Soil Science, University of Wisconsin, MadisonSearch for more papers by this author Ekrem Ozlu, Ekrem Ozlu eozlu@wisc.edu Department of Soil Science, University of Wisconsin, MadisonSearch for more papers by this author First published: 14 March 2019 https://doi.org/10.2134/csa2019.64.0328Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume64, Issue3March 2019Pages 30-31 RelatedInformation}, number={3}, journal={CSA News}, publisher={Wiley}, author={Ozlu, Ekrem}, year={2019}, month={Mar}, pages={30–31} }
 @article{response of mycorrhiza-inoculated pepper and amino acids to salt treatment at different ratios_2019, volume={50}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85059451990&partnerID=MN8TOARS}, DOI={10.1080/00103624.2018.1563102}, abstractNote={ABSTRACT Mycorrhiza has attracted interest as one of the microorganisms that increase a crop’s salt stress tolerance. This study was conducted to determine the impacts of mycorrhiza inoculation and applying salt at different ratios on the yield of peppers and amino acid concentrations. The study was conducted in greenhouse conditions on loamy soils with four salt treatments, two mycorrhiza inoculations and a control in a complete randomized block design. The present study indicated that salt treatment alone was significantly correlated with crop stem and root amino acid concentrations, RWC% and leaf sizes, whereas applying mycorrhiza showed a positive relationship to stem height, stem and root wet weight, and root amino acids but led to a decloine in root serine and glutamine, and stem amino acid and glutamine. In conclusion, inoculating with mycorrhiza was observed to make a positive contribution to salt stress tolerance at different levels in almost all the parameters examined.}, number={3}, journal={Communications in Soil Science and Plant Analysis}, year={2019}, pages={350–361} }
 @article{karlida?_turan_karaat_ozlu_arriaga_kan_atay_2019, title={Response of heavy metal contents in apricots to different transportation modes}, volume={18}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85070375817&partnerID=MN8TOARS}, DOI={10.24326/asphc.2019.1.8}, abstractNote={In order to evaluate the effects of different transportation hubs on cultivated soil and apricots, macro and micro elements and heavy metal contents of fruit, leaf, kernel and soil samples collected from apricot orchards located at the border of the railroad, the motorway, the airport, and an orchard far from transportation modes were detected by ICP/OES (inductively coupled plasma / optical emission spectrometry). The results indicated the highest Cd, Pb and Ni contents of soil, fruit, and kernel samples under impacts of railroad transportation modes, whereas the highest contents of leaf were found under motorway side. All fruit samples contained higher amounts of Cd and Pb compared to permissible limits of FAO/WHO, and contents differentiated between sampling locations. There were no correlative relations found between transportation modes and macro-micro element contents. As a conclusion, in terms of heavy metal contamination, the orchards located at railway sides have the highest risk and this was followed by motorway side.}, number={1}, journal={Acta Scientiarum Polonorum, Hortorum Cultus}, author={Karlida?, H. and Turan, M. and Karaat, F.E. and Ozlu, E. and Arriaga, F. and Kan, T. and Atay, S.}, year={2019}, pages={75–84} }
 @article{ozlu_kumar_arriaga_2019, title={Responses of Long-Term Cattle Manure on Soil Physical and Hydraulic Properties under a Corn–Soybean Rotation at Two Locations in Eastern South Dakota}, volume={83}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85082539241&partnerID=MN8TOARS}, DOI={10.2136/sssaj2019.03.0077}, abstractNote={
Core Ideas
Manure improved soil hydrological properties in comparison with those of inorganic fertilizer and control.
Manure decreased soil bulk density but increased C stocks and water retention compared with inorganic fertilizer.
The higher rate of manure decreased soil bulk density and increased C stocks compared with lower rates of manure and inorganic fertilizer.
Manure can enhance soil organic carbon (SOC) and soil hydrological properties, such as soil water retention (SWR) and water infiltration (qs), which are crucial for crop production. The present study was conducted to investigate the impacts of different rates of manure (low, medium, and high) and inorganic fertilizer (INF) on soil bulk density (ρb), penetration resistance (SPRc), SWR, and qs at two long‐term experimental sites located in eastern South Dakota. The study sites were established under reduced‐till corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] rotation. Dairy solid manure was used for the Brookings site, whereas beef solid manure was used for the Beresford site. On an average, manure application (1.02 Mg m−3) reduced the ρb by 19% compared with INF application (1.27 Mg m−3) at 0‐ to 10‐cm depth for the Brookings site and by 11% for the Beresford site (manure, 1.08 Mg m−3; fertilizer, 1.21 Mg m−3). Soil qs was significantly increased by 33 and 29% at the Brookings site and by 43 and 36% at the Beresford site under manure application compared with the INF and control. On average, SWR with manure application was higher compared with that of fertilizer at both depths for the Brookings and Beresford sites. Pearson correlation analysis showed that ρb and SPRc were negatively correlated and that SOC stock and qs were positively correlated with SWR and pore size distributions. This study showed that long‐term manure application can be beneficial in enhancing soil physical and hydraulic properties, which can enhance crop production.}, number={5}, journal={Soil Science Society of America Journal}, author={Ozlu, E. and Kumar, S. and Arriaga, F.J.}, year={2019}, pages={1459–1467} }
 @inproceedings{bleam_ozlu_arriaga_2019, title={Salinity and Alkalinity in Surface and Ground Water Resources in Turkey}, ISBN={9786051841946}, booktitle={6th International Conference on Sustainable Agriculture and Environment}, author={Bleam, W. and Ozlu, E. and Arriaga, F.J.}, year={2019} }
 @article{sandhu_sekaran_ozlu_hoilett_kumar_2019, title={Short-term impacts of biochar and manure application on soil labile carbon fractions, enzyme activity, and microbial community structure}, volume={1}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85090027851&partnerID=MN8TOARS}, DOI={10.1007/s42773-019-00025-2}, number={3}, journal={Biochar}, author={Sandhu, S. and Sekaran, U. and Ozlu, E. and Hoilett, N.O. and Kumar, S.}, year={2019}, pages={271–282} }
 @article{ozlu_sandhu_kumar_arriaga_2019, title={Soil health indicators impacted by long-term cattle manure and inorganic fertilizer application in a corn-soybean rotation of South Dakota}, volume={9}, url={http://dx.doi.org/10.1038/s41598-019-48207-z}, DOI={10.1038/s41598-019-48207-z}, abstractNote={Abstract}, number={1}, journal={Scientific Reports}, author={Ozlu, E. and Sandhu, S.S. and Kumar, S. and Arriaga, F.J.}, year={2019}, month={Dec} }
 @article{ozlu_arriaga_2019, title={Soilistic Art: Part 1-Painting, Ceramics, Pottery, and Architecture}, volume={64}, ISSN={1529-9163}, url={http://dx.doi.org/10.2134/csa2019.64.0526}, DOI={10.2134/csa2019.64.0526}, abstractNote={CSA NewsVolume 64, Issue 5 p. 32-35 Students and Early Career Member Soilistic Art: Part 1—Painting, Ceramics, Pottery, and Architecture Ekrem Ozlu, Ekrem Ozlu Department of Soil Science, University of Wisconsin-MadisonSearch for more papers by this authorFrancisco J. Arriaga, Francisco J. Arriaga Department of Soil Science, University of Wisconsin–MadisonSearch for more papers by this author Ekrem Ozlu, Ekrem Ozlu Department of Soil Science, University of Wisconsin-MadisonSearch for more papers by this authorFrancisco J. Arriaga, Francisco J. Arriaga Department of Soil Science, University of Wisconsin–MadisonSearch for more papers by this author First published: 06 May 2019 https://doi.org/10.2134/csa2019.64.0526Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume64, Issue5May 2019Pages 32-35 RelatedInformation}, number={5}, journal={CSA News}, publisher={Wiley}, author={Ozlu, Ekrem and Arriaga, Francisco J.}, year={2019}, month={May}, pages={32–35} }
 @article{erdogan_kitir_adem_tuan_tasci_yildirim_karaman_mokhtari_ozlu_firildak_2018, title={Different land use influences on amino acid, organic acid, hormone and mineral nutrient contents of dry beans}, volume={27}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85089713967&partnerID=MN8TOARS}, number={12}, journal={Fresenius Environmental Bulletin}, author={Erdogan, U. and Kitir, N. and Adem, G. and Tuan, M. and Tasci, S. and Yildirim, E. and Karaman, M.R. and Mokhtari, N.E.P. and Ozlu, E. and Firildak, G.}, year={2018}, pages={8147–8157} }
 @article{ozdemir_kitir_turan_ozlu_2018, title={IMPACTS  OF  ORGANIC  AND  ORGANO-MINERAL  FERTILIZERS ON  TOTAL  PHENOLIC,  FLAVONOID,  ANTHOCYANIN  AND  ANTIRADICAL  ACTIVITY  OF  OKUZGOZU (Vitis vinifera L.)  GRAPES}, volume={17}, url={http://dx.doi.org/10.24326/asphc.2018.3.9}, DOI={10.24326/asphc.2018.3.9}, abstractNote={A present study was conducted to determine the impact s of organic and organo-mineral fertilizers on tota l phenolic, flavonoid, anthocyanin and antiradical ac tivities of Okuzgozu ( Vitis vinifera L. cv.) grapes. Study treatments included organic fertilizers (green fert ilizer (vetch), green fertilizer (barley), green fe rtilizer (vetch + barley), farmyard manure, bactoguard, life bac NP, humanica) and organo-mineral fertilizers (ba ctolife quality organo, bactolife high organo, bacto life high organo, bactolife super organo power). The control treatment did not receive any application. The organic, and organo-mineral fertilizers applicatio ns positively influenced the total phenolic, flavonoid and anthocyanin productions, and antiradical activity (DPPH). The maximum total phenolic production was sign ificantly higher under Bactolife Super Organo Power (785.49 μg GAE/mg in pulp) application, followed by those under bactolife high organo 5-5-5 (780.40 μg GAE/mg in pulp). The total flavonoid production in berry skin (34.26 μg QUE/mg), pulp (137.00 μg QUE/mg) and seed (23.52 μg QUE/mg) were the highest under the bactolife super o rgano power whereas the antiradical activities (DPPH) of berr y pulp and seed were at the maximum level under the bactolife quality organo treatment. Total antho cyanin content of berry skin and pulp of Okuzgozu gr ape cultivar was the highest under the organic humanica .}, number={3}, journal={Acta Scientiarum Polonorum Hortorum Cultus}, author={Ozdemir, G. and Kitir, N. and Turan, M. and Ozlu, E.}, year={2018}, month={Jun}, pages={91–100} }
 @article{ozlu_kaler_2018, title={Modern Academic Data Library and Management Using Geo-Computing Technologies}, volume={63}, ISSN={1529-9163}, url={http://dx.doi.org/10.2134/csa2018.63.0124}, DOI={10.2134/csa2018.63.0124}, abstractNote={CSA NewsVolume 63, Issue 1 p. 30-31 Student Modern Academic Data Library and Management Using Geo-Computing Technologies Ekrem Ozlu, Ekrem OzluSearch for more papers by this authorAvjinder Kaler, Avjinder KalerSearch for more papers by this author Ekrem Ozlu, Ekrem OzluSearch for more papers by this authorAvjinder Kaler, Avjinder KalerSearch for more papers by this author First published: 04 January 2018 https://doi.org/10.2134/csa2018.63.0124Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume63, Issue1January 2018Pages 30-31 RelatedInformation}, number={1}, journal={CSA News}, publisher={Wiley}, author={Ozlu, Ekrem and Kaler, Avjinder}, year={2018}, month={Jan}, pages={30–31} }
 @article{ozlu_kumar_2018, title={Response of Soil Organic Carbon, pH, Electrical Conductivity, and Water Stable Aggregates to Long-Term Annual Manure and Inorganic Fertilizer}, volume={82}, url={http://dx.doi.org/10.2136/sssaj2018.02.0082}, DOI={10.2136/sssaj2018.02.0082}, abstractNote={
Core Ideas
Long‐term annual application of manure maintained the soil pH but inorganic fertilizer decreased it.
Manure application increased soil organic carbon (SOC) and total nitrogen (TN).
Higher manure rate helps in improving the water stable aggregates compared to inorganic fertilizer at 0‐ to 10‐cm depth.
Manure enhances soil fertility and crop yield; however, an optimum rate of manure application is important to avoid any negative impacts to soils and the environment. This study was conducted to assess the long‐term impacts of manure and inorganic fertilizer rates on soil organic carbon (SOC), total nitrogen (TN), water stable aggregate (WSA), pH, and electrical conductivity (EC) under corn (Zea mays L.)‐soybean (Glycine max L.) rotation at Beresford (established in 2003) and Brookings (established in 2008), South Dakota (SD). Study treatments included low (LM), medium (MM) and high (HM) manure, medium (MF) and high (HF) inorganic fertilizer, and control (CK). Soil samples were extracted from four replicates at 0‐ to 10‐cm, 10‐ to 20‐cm, 20‐ to 30‐cm and 30‐ to 40‐cm depths from either site in 2015. Results showed that manure application maintained the soil pH at 0 to 10 cm depth; whereas, inorganic fertilizer decreased it compared to the control treatment at either site. The highest SOC concentrations at 0‐ to 10‐cm depth were observed under HM (38.3 g kg–1) as compared to that under MM (30.9 g kg–1), LM (27.6 g kg–1), MF application (24.0 g kg–1), HF (25.8 g kg–1) and CK (23.3 g kg–1). Furthermore, HM treatment significantly increased SOC for each depth increment from 0‐ to 40‐cm compared to the inorganic fertilizer at either site. A similar trend was observed for the TN but differences were not always significant. On an average, manure increased the EC (1.56 dS m–1) by 2.2 times compared to that of fertilizer (0.71 dS m–1) for 0‐ to 10‐cm depth. Similarly, manure significantly increased WSA by 7.2 and 5.6% compared to that of fertilizer at 0‐ to 10‐cm depth for Brookings and Beresford, respectively. Data from this study concluded that the long‐term annual application of manure improved selected soil properties compared to that of inorganic fertilizer.}, number={5}, journal={Soil Science Society of America Journal}, author={Ozlu, E. and Kumar, S.}, year={2018}, month={Sep}, pages={1243–1251} }
 @article{ozlu_kumar_2018, title={Response of surface GHG fluxes to long-term manure and inorganic fertilizer application in corn and soybean rotation}, volume={626}, url={http://dx.doi.org/10.1016/j.scitotenv.2018.01.120}, DOI={10.1016/j.scitotenv.2018.01.120}, abstractNote={This study was conducted to investigate the impacts of dairy manure and inorganic fertilizer on soil surface greenhouse gases (GHG) [carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4)] fluxes from soils managed under corn (Zea mays L.)-soybean (Glycine max L.) rotation. The experiment was established on a silty loam soil, and the treatments included three manure application rates [phosphorus based recommended rate (low manure, LM), nitrogen based recommended rate (medium manure, MM) and two times recommended nitrogen rate (high manure, HM)], two inorganic fertilizer levels [recommended fertilizer (medium fertilizer, MF) and high rate of fertilizer (HF)], and control (CK) replicated four times. Soil GHG fluxes were monitored once a week during the growing season for 2015 and 2016. Data from this study showed that there were not any significant impacts from manure and inorganic fertilizer applications on the annual CH4 fluxes in 2015 and 2016. However, annual soil surface CO2 fluxes were increased by manure treatments compared to inorganic fertilizer treatments in both the years. In contrast, manure treatments decreased N2O fluxes, but significantly increased net GWP than the fertilizer treatments in 2016. In general, higher manure and fertilizer rates resulted in higher annual GHG emissions compared to lower manure and fertilizer rates in both years. Data from this study showed that HF application in crops can be detrimental for the environment by emitting higher GHG emissions, therefore, improved application strategies for manure and fertilizer management need to be explored to avoid any negative environmental impacts.}, journal={Science of The Total Environment}, publisher={Elsevier BV}, author={Ozlu, Ekrem and Kumar, Sandeep}, year={2018}, month={Jun}, pages={817–825} }
 @article{battaglia_gambles_ozlu_2017, title={Highlights from the 2016 Annual Meeting}, volume={62}, ISSN={1529-9163}, url={http://dx.doi.org/10.2134/csa2017.62.0116}, DOI={10.2134/csa2017.62.0116}, abstractNote={CSA NewsVolume 62, Issue 1 p. 28-32 Special Section Highlights from the 2016 Annual Meeting First published: 16 January 2017 https://doi.org/10.2134/csa2017.62.0116Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume62, Issue1January 2017Pages 28-32 RelatedInformation}, number={1}, journal={CSA News}, publisher={Wiley}, author={Battaglia, M.L. and Gambles, A. and Ozlu, E.}, year={2017}, month={Jan}, pages={28–32} }
 @article{ozlu_arriaga_2017, title={Leadership, Communication, and Science for Early Career Members}, volume={62}, ISSN={1529-9163}, url={http://dx.doi.org/10.2134/csa2017.62.1229}, DOI={10.2134/csa2017.62.1229}, abstractNote={CSA NewsVolume 62, Issue 12 p. 40-41 Early Career Member Leadership, Communication, and Science for Early Career Members Ekrem Ozlu, Ekrem Ozlu Department of Soil Science, University of Wisconsin, MadisonSearch for more papers by this authorFrancisco Arriaga, Francisco Arriaga Department of Soil Science, University of Wisconsin, MadisonSearch for more papers by this author Ekrem Ozlu, Ekrem Ozlu Department of Soil Science, University of Wisconsin, MadisonSearch for more papers by this authorFrancisco Arriaga, Francisco Arriaga Department of Soil Science, University of Wisconsin, MadisonSearch for more papers by this author First published: 07 December 2017 https://doi.org/10.2134/csa2017.62.1229Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume62, Issue12December 2017Pages 40-41 RelatedInformation}, number={12}, journal={CSA News}, publisher={Wiley}, author={Ozlu, Ekrem and Arriaga, Francisco}, year={2017}, month={Dec}, pages={40–41} }
 @article{ozlu_alhameid_2017, title={The Linkage between Human Health and Soil under Different Farming Practices, a Systematic Review}, volume={11}, DOI={10.19080/ARTOAJ.2017.11.555819}, abstractNote={Soil health is a major component of sustainable agriculture. A considerable amount of research has been published on soil heath role on environment and agroecosystems. However, the link between the soil and human health has not been studied in detail. The present review focused on systematic review of existing studies in order to determine the link between soil and human health. It is theorized that soil heath has a significant impact on human health in different aspects. To achieve these aims, interactions of soil properties and elements with microbial properties, GHG emissions, crop diseases, illnesses and other human health risk indicators need to be determined.}, number={4}, journal={Agricultural Research & Technology Open Access Journal}, author={Ozlu, E. and Alhameid, A.}, year={2017}, month={Sep}, pages={573–592} }
 @article{yagmur_ozlu_ates_simsek_2017, title={The response of soil health to different tillage practices in organic viticulture farming}, volume={1}, number={1}, journal={Journal of Soil Science & Plant Health}, author={Yagmur, B. and Ozlu, E. and Ates, F. and Simsek, H.}, year={2017}, pages={2003–2005} }