Thomas J. Smyth

Works (46)

Updated: April 4th, 2024 23:06

2021 journal article

Soil slope and texture as factors of phosphorus exportation from pasture areas receiving pig slurry

SCIENCE OF THE TOTAL ENVIRONMENT, 761.

By: D. Dall'Orsoletta *, L. Gatiboni n , G. Mumbach *, D. Schmitt *, G. Boitt * & T. Smyth n

author keywords: Slope; Phosphorus losses; Erosion; Soil texture
TL;DR: 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 and a P-threshold model for Mehlich-1 extractable P levels for Brazilian subtropical soils is proposed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: February 15, 2021

2021 journal article

Water use and biomass yield of bioenergy crops in the North Carolina Piedmont

AGRONOMY JOURNAL, 113(3), 2463–2473.

By: T. Stephenson n, H. Carvalho n, M. Castillo n , C. Crozier n, T. Smyth n & J. Heitman n 

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: April 26, 2021

2018 journal article

Stem, Leaf, and Panicle Yield and Nutrient Content of Biomass and Sweet Sorghum

AGRONOMY JOURNAL, 110(5), 1659–1665.

By: A. Heitman n, M. Castillo n , T. Smyth n & C. Crozier n

Contributors: A. Heitman n, M. Castillo n , T. Smyth n & C. Crozier n

TL;DR: Compared with previous reports from grain-type sorghum cultivars, far less has been reported regarding the relative partition of biomass yield and nutrient among the stem, leaf, and panicle components for dedicated bioenergy Sorghum. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 19, 2018

2018 journal article

Yield and Nitrogen Removal of Bioenergy Grasses as Influenced by Nitrogen Rate and Harvest Management in the Coastal Plain Region of North Carolina

BioEnergy Research, 11(1), 44–53.

By: Z. Wang  n, T. Jot Smyth, C. Crozier*, R. Gehl* & A. Heitman n

author keywords: Biomass yield; Harvest frequency; Switchgrass; Miscanthus
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2017 journal article

Nitrogen Fertilization Effects on Yield and Nutrient Removal of Biomass and Sweet Sorghum

AGRONOMY JOURNAL, 109(4), 1352–1358.

By: A. Heitman n, M. Castillo n , T. Smyth n, C. Crozier, Z. Wang n, R. Heiniger, R. Gehl*

Contributors: A. Heitman n, M. Castillo n , T. Smyth n, C. Crozier, Z. Wang n, R. Heiniger, R. Gehl*

UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

Soil Responses to Bioenergy Crop Production in the North Carolina Piedmont

AGRONOMY JOURNAL, 109(4), 1368–1378.

By: Z. Wang n, J. Heitman n , T. Smyth n, C. Crozier n, A. Franzluebbers  n, S. Lee*, R. Gehl

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Yield and Nutrient Removal by Bioenergy Grasses on Swine Effluent Spray Fields in the Coastal Plain Region of North Carolina

BioEnergy Research, 10(4), 979–991.

By: Z. Wang n, T. Smyth n, C. Crozier*, R. Gehl* & A. Heitman n

author keywords: Bioenergy; Biomass yield; Harvest frequency; Miscanthus; Switchgrass; Spray field
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2016 journal article

Poultry Manure Nitrogen Availability Influences Winter Wheat Yield and Yield Components

AGRONOMY JOURNAL, 108(2), 864–872.

By: C. Savala, C. Crozier n & T. Smyth n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Winter legume cover-crop root decomposition and N release dynamics under disking and roller-crimping termination approaches

Renewable Agriculture and Food Systems, 31(3), 214–229.

By: A. Jani  n, J. Grossman *, T. Smyth n & S. Hu n 

author keywords: legume cover crops; roots; roller-crimping; disking; decomposition; soil nitrogen
TL;DR: It is indicated that under the warm, humid summer conditions of the Southeastern USA, legume cover-crop roots decompose and release N rapidly. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (OpenAlex)
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2015 journal article

Crop Utilization of Nitrogen in Swine Lagoon Sludge

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 46(12), 1525–1539.

By: D. Israel n & T. Smyth n

author keywords: water quality; soil fertility; Nitrogen
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Influence of soil inorganic nitrogen and root diameter size on legume cover crop root decomposition and nitrogen release

PLANT AND SOIL, 393(1-2), 57–68.

By: A. Jani  n, J. Grossman *, T. Smyth n & S. Hu n 

author keywords: Legume cover crops; Root decomposition; Fine and coarse roots; Nitrogen release
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

SOIL PHOSPHORUS THRESHOLDS IN EVALUATING RISK OF ENVIRONMENTAL TRANSFER TO SURFACE WATERS IN SANTA CATARINA, BRAZIL

REVISTA BRASILEIRA DE CIENCIA DO SOLO, 39(4), 1225–1234.

By: L. Gatiboni *, T. Smyth n, D. Schmitt *, P. Cassol * & C. Oliveira*

Contributors: L. Gatiboni* , T. Smyth n, D. Schmitt *, P. Cassol * & C. Oliveira*

author keywords: eutrophication; swine manure; environmental pollution
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2014 journal article

MAXIMUM PHOSPHORUS ADSORPTION CAPACITY AND BINDING ENERGY CONSTANT OF AN OXISOL FITTING DIFFERENT LANGMUIR MODELS

REVISTA BRASILEIRA DE CIENCIA DO SOLO, 38(6), 1805–1815.

By: C. Oliveira*, L. Gatiboni*, D. Miquelluti *, T. Smyth n & J. Almeida *

author keywords: isotherms; Pmax; maximum adsorption; adsorption models; phosphorus sorption
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Comparison of Copper, Manganese, and Zinc Extraction with Mehlich 1, Mehlich 3, and DTPA Solutions for Soils of the Brazilian Coastal Tablelands

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 44(17), 2507–2513.

By: L. Sobral*, J. Smyth n, N. Fageria* & L. Stone *

author keywords: Micronutrients; soil analysis methods; Zea mays L
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2011 journal article

Predicting Soil Phosphorus Fertilizer Rate Using Hierarchical Segmented Regression Models

SOIL SCIENCE, 176(6), 303–306.

By: X. Shuai, R. Yost* & T. Smyth n

author keywords: Phosphorus model; phosphorus fertilization; PDSS; NuMaSS
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2010 journal article

LACK OF SOYBEAN ROOT ELONGATION RESPONSES TO MICROMOLAR MAGNESIUM ADDITIONS AND FATE OF ROOT-EXUDED CITRATE IN ACID SUBSOILS

JOURNAL OF PLANT NUTRITION, 33(2), 219–239.

By: Y. Hashimoto n, T. Smyth n, D. Israel n & D. Hesterberg n 

Contributors: Y. Hashimoto n, T. Smyth n, D. Israel n & D. Hesterberg n 

author keywords: aluminum; acid soils; magnesium; soil fertility
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2010 journal article

Nitrogen, Phosphorus, and Liming Effects of Poultry Layer Manures in Coastal Plain and Piedmont Soils

AGRONOMY JOURNAL, 102(5), 1329–1339.

By: D. Grijalva n, C. Crozier, T. Smyth n & D. Hardy*

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

BORON MOBILITY IN EUCALYPTUS CLONES

REVISTA BRASILEIRA DE CIENCIA DO SOLO, 33(6), 1733–1744.

By: J. Sao Jose *, I. Silva *, N. Barros *, R. Novais *, E. Silva*, T. Smyth n, F. Leite*, F. Nunes*, F. Gebrim*

author keywords: micronutrient; forest nutrition; translocation; polyol
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

TIMING, LOCATION AND CROP SPECIES INFLUENCE THE MAGNITUDE OF AMELIORATION OF ALUMINUM TOXICITY BY MAGNESIUM

REVISTA BRASILEIRA DE CIENCIA DO SOLO, 33(1), 65–76.

By: I. Silva*, T. Cortes Correa*, R. Novais *, T. Smyth n, T. Rufty n, E. Silva*, F. Gebrim*, F. Nunes*

author keywords: soybean; cations; calcium; rhizotoxicity; soil acidity
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

PROTECTIVE EFFECT OF DIVALENT CATIONS AGAINST ALUMINUM TOXICITY IN SOYBEAN

REVISTA BRASILEIRA DE CIENCIA DO SOLO, 32(5), 2061–2071.

By: I. Silva *, T. Cortes Correa n, R. Novais  n, F. Gebrim*, F. Nunes*, E. Salva, T. Smyth n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Comparative effects of two forage species on rhizosphere acidification and solubilization of phosphate rocks of different reactivity

Journal of Plant Nutrition, 30(7-9), 1421–1439.

By: M. Perez*, T. Smyth n & D. Israel n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Soybean root growth in relation to ionic composition in magnesium-amended acid subsoils: Implications on root citrate ameliorating aluminum constraints

SOIL SCIENCE AND PLANT NUTRITION, 53(6), 753–763.

By: Y. Hashimoto  n, T. Smyth n, D. Hesterberg n  & D. Israel n

Contributors: Y. Hashimoto  n, T. Smyth n, D. Hesterberg n  & D. Israel n

author keywords: ionic speciation; organic acids; rhizotoxicity; sorption
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2006 journal article

Differential sensitivity of Phytophthora parasitica var. nicotianae and Thielaviopsis basicola to monomeric aluminum species

Phytopathology, 96(3), 212.

By: E. Fichtner, D. Hesterberg* , T. Smyth* & H. Shew*

Contributors: E. Fichtner, D. Hesterberg* , T. Smyth* & H. Shew*

TL;DR: The sensitivity of T. nicotianae and P. basicola to Al was pH-dependent, suggesting that only Al(3+) is responsible for suppression of this fungal pathogen. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries, ORCID
Added: August 6, 2018

2006 journal article

Soil organic carbon dynamics following afforestation of degraded pastures with eucalyptus in southeastern Brazil

FOREST ECOLOGY AND MANAGEMENT, 235(1-3), 219–231.

By: A. Lima *, I. Silva *, J. Neves *, R. Novais *, N. Barros *, E. Mendonca *, T. Smyth n, M. Moreira*, F. Leite*

author keywords: organic carbon; pasture conversion; oxisol; land use change; organic matter fractions
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Diffusive flux of cationic micronutrients in two oxisols as affected by low-molecular-weight organic acids and cover-crop residue

JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE, 168(3), 334–340.

By: R. Pegoraro *, I. Silva *, R. Novais *, E. Mendonca *, V. Alvarez*, F. Nunes*, F. Fonseca*, T. Smyth n

author keywords: diffusion; nutrient transport; citrate; acetate; chelate; micronutrients
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Foliage residue decomposition and nutrient release in peach palm (Bactris gasipaes Kunth) plantations for heart-of-palm production in Costa Rica

AGRONOMY JOURNAL, 97(5), 1396–1402.

By: G. Soto *, P. Luna-Orea n, M. Wagger n, T. Smyth n & A. Alvarado *

TL;DR: The relatively rapid decomposition and nutrient release rates would seem to be ideal for this perennial cropping system where plants are continuously absorbing nutrients during the year to support the growth of offshoots that eventually become harvestable stems. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Interactions between magnesium, calcium, and aluminum on soybean root elongation

REVISTA BRASILEIRA DE CIENCIA DO SOLO, 29(5), 747–754.

By: I. Silva *, A. Ferrufino*, C. Sanzonowicz*, T. Smyth*, D. Israel n & T. Junior*

author keywords: cation amelioration; aluminum toxicity; root stress; soil acidity
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

The contribution of commercial fertilizer nutrients to food production

AGRONOMY JOURNAL, 97(1), 1–6.

By: W. Stewart*, D. Dibb, A. Johnston* & T. Smyth n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science; OpenAlex)
13. Climate Action (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Allometric relationships in Bactris gasipaes for heart-of-palm production agroecosystems in Costa Rica

JOURNAL OF AGRICULTURAL SCIENCE, 138, 285–292.

By: A. Ares*, J. Quesada *, J. Boniche*, R. Yost*, E. Molina* & J. Smyth n

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Altered aluminum inhibition of soybean root elongation in the presence of magnesium

Plant and Soil, 230(2), 223–230.

By: I. Silva *, T. Smyth*, D. Israel* & T. Rufty n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Differential aluminum tolerance in soybean: An evaluation of the role of organic acids

PHYSIOLOGIA PLANTARUM, 112(2), 200–210.

By: I. Silva  n, T. Smyth n, C. Raper n, T. Carter n & T. Rufty n

TL;DR: The initial stimulation of citrate and malate excretion and accumulation in the tip of all genotypes suggested the involvement of additional tolerance mechanisms, and the fluorescent stain lumogallion indicated that more Al accumulated in root tips of the Al-sensitive genotype Young than theAl-tolerant genotype PI 416937, suggesting that the sustained release ofcitrate from roots of the tolerant genotype was involved in Al exclusion. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Magnesium ameliorates aluminum rhizotoxicity in soybean by increasing citric acid production and exudation by roots

PLANT AND CELL PHYSIOLOGY, 42(5), 546–554.

By: I. Silva *, T. Smyth n, D. Israel n, C. Raper n & T. Rufty n

author keywords: aluminum tolerance; calcium; cation amelioration; magnesium; organic acids; root exudates; soybean
MeSH headings : Absorption; Aluminum / toxicity; Calcium / metabolism; Cell Membrane / metabolism; Citrates / metabolism; Hydrogen / metabolism; Hydrogen-Ion Concentration; Ions; Magnesium / metabolism; Malates / metabolism; Plant Roots / growth & development; Plant Roots / metabolism; Soybeans / drug effects; Soybeans / metabolism; Static Electricity; Surface Properties
TL;DR: Plants treated with either 50 microM Mg or 3 mM Ca had similar reductions in Al accumulation at tap root tips, which coincided with the respective ability of these ions to relieve Al rhizotoxicity. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Magnesium is more efficient than calcium in alleviating aluminum rhizotoxicity in soybean and its ameliorative effect is not explained by the Gouy-Chapman-Stern model

PLANT AND CELL PHYSIOLOGY, 42(5), 538–545.

By: I. Silva *, T. Smyth n, D. Israel n, C. Raper n & T. Rufty n

author keywords: aluminum toxicity; calcium; cation amelioration; Gouy-Chapman-Stern model; magnesium; soybean
MeSH headings : Absorption; Aluminum / toxicity; Calcium / metabolism; Cell Membrane / metabolism; Hydrogen / metabolism; Hydrogen-Ion Concentration; Ions; Magnesium / metabolism; Plant Roots / growth & development; Plant Roots / metabolism; Soybeans / drug effects; Soybeans / metabolism; Static Electricity; Surface Properties
TL;DR: Mg amelioration of Al toxicity to soybean root elongation at low Mg concentration could not be explained by changes in potential and Al3+ activity at the root plasma membrane surfaces as predicted by a Gouy-Chapman-Stern model, suggesting that Mg is not acting as an indifferent cation when present at low concentration. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Aluminum accumulation at nuclei of cells in the root tip. Fluorescence detection using lumogallion and confocal laser scanning microscopy

PLANT PHYSIOLOGY, 123(2), 543–552.

By: I. Silva, T. Smyth*, D. Moxley*, T. Carter n, N. Allen* & T. Rufty n

MeSH headings : Aluminum / metabolism; Benzenesulfonates / chemistry; Cell Nucleus / metabolism; Genotype; Lasers; Microscopy, Confocal / methods; Plant Roots / metabolism; Soybeans / genetics; Soybeans / metabolism; Spectrometry, Fluorescence / methods
TL;DR: The results support an important role for exclusion in Al tolerance and indicate that the Al-tolerant genotype accumulated lower amounts of Al in meristematic and differentiating cells of the root tip and their cell walls. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Aluminum diffusion in oxisols as influenced by soil water matric potential, pH, lime, gypsum, potassium chloride, and calcium phosphate

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 31(15-16), 2523–2533.

By: F. Oliveira *, R. Novais*, T. Smyth n & C. Neves *

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Comparisons of phosphorus availability between anion exchange resin and Mehlich-1 extractions among oxisols with different capacity factors

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 31(5-6), 615–630.

By: F. Oliveira *, R. Novais*, T. Smyth n & J. Neves *

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Root elongation of soybean genotypes in response to acidity constraints in a subsurface solution compartment

CROP SCIENCE, 40(2), 413–421.

By: A. Ferrufino, T. Smyth n, D. Israel n & T. Carter n

TL;DR: Root elongation of four soybean genotypes exposed to varying concentrations of Al, H, and Ca were compared in two experiments using a vertically split root system and line N93 and Ransom exhibited greater tolerance to subsurface solution Al than PI and Young. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1999 book

Fosforo em solo e planta em condicoes tropicais

Vicosa, Brazil: Universidade Federal de Vicosa.

By: R. Novais & T. Smyth

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

Assessment of rhizotoxic aluminum in soil solutions by computer and chromogenic speciation

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 29(1-2), 37–50.

By: J. Jallah* & T. Smyth n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Calcium alleviation of hydrogen and aluminum inhibition of soybean root extension from limed soil into acid subsurface solutions

JOURNAL OF PLANT NUTRITION, 21(4), 785–804.

By: C. Sanzonowicz*, T. Smyth n & D. Israel n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Hydrogen and aluminum inhibition of soybean root extension from limed soil into acid subsurface solutions

JOURNAL OF PLANT NUTRITION, 21(2), 387–403.

By: C. Sanzonowicz, T. Smyth n & D. Israel n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Manejo sustentado da fertilidade de um latossolo da Amazonia central sob cultivos sucessivos

Revista Brasileira De Ciencia Do Solo, 21(1997), 607–616.

By: M. Cravo* & T. Smyth*

TL;DR: An experiment was conducted on a Xanthic Hapludox near Manaus, Brazil to establish soil nutrient depletion patterns and fertilizer and lime requirements for continuous cultivation after slash-and-burn clearing. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

1992 journal article

ALUMINUM AND CALCIUM CONSTRAINTS TO CONTINUOUS CROP PRODUCTION IN A BRAZILIAN AMAZON OXISOL

AGRONOMY JOURNAL, 84(5), 843–850.

By: T. Smyth n & M. Cravo*

TL;DR: A field study was conducted in a Xanthic Hapludox near Manaus, Brazil, to evaluate lime and Ca requirements for corn, cowpea, soybean, and peanut during five consecutive years. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1991 journal article

Nitrogen supplied to corn by legumes in a central Amazon Oxisol

Tropical Agriculture, 68(4), 366.

By: T. Smyth, M. Cravo & R. Melgar

Source: NC State University Libraries
Added: August 6, 2018

1990 journal article

CRITICAL PHOSPHORUS LEVELS FOR CORN AND COWPEA IN A BRAZILIAN AMAZON OXISOL

AGRONOMY JOURNAL, 82(2), 309–312.

By: T. Smyth n & M. Cravo*

TL;DR: Higher amounts of P were extracted by Bray 1 than by Mehlich 1, but both extractants were effective in relating available soil P to yield and applied fertilizer P. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1990 journal article

PHOSPHORUS MANAGEMENT FOR CONTINUOUS CORN-COWPEA PRODUCTION IN A BRAZILIAN AMAZON OXISOL

AGRONOMY JOURNAL, 82(2), 305–309.

By: T. Smyth n & M. Cravo*

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: August 6, 2018

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