Thomas J. Smyth

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

SCIENCE OF THE TOTAL ENVIRONMENT, 761.

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

AGRONOMY JOURNAL, 113(3), 2463–2473.

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

AGRONOMY JOURNAL, 110(5), 1659–1665.

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.

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

AGRONOMY JOURNAL, 109(4), 1352–1358.

Soil Responses to Bioenergy Crop Production in the North Carolina Piedmont

AGRONOMY JOURNAL, 109(4), 1368–1378.

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.

Poultry Manure Nitrogen Availability Influences Winter Wheat Yield and Yield Components

AGRONOMY JOURNAL, 108(2), 864–872.

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.

Crop Utilization of Nitrogen in Swine Lagoon Sludge

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

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.

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.

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.

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.

Predicting Soil Phosphorus Fertilizer Rate Using Hierarchical Segmented Regression Models

SOIL SCIENCE, 176(6), 303–306.

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.

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

AGRONOMY JOURNAL, 102(5), 1329–1339.

BORON MOBILITY IN EUCALYPTUS CLONES

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

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.

PROTECTIVE EFFECT OF DIVALENT CATIONS AGAINST ALUMINUM TOXICITY IN SOYBEAN

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

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.

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.

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

Phytopathology, 96(3), 212.

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

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

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.

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.

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

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

The contribution of commercial fertilizer nutrients to food production

AGRONOMY JOURNAL, 97(1), 1–6.

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

JOURNAL OF AGRICULTURAL SCIENCE, 138, 285–292.

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

Plant and Soil, 230(2), 223–230.

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

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

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

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

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.

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.

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.

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.

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

CROP SCIENCE, 40(2), 413–421.

Fosforo em solo e planta em condicoes tropicais

Vicosa, Brazil: Universidade Federal de Vicosa.

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

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

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.

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

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

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

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

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

AGRONOMY JOURNAL, 84(5), 843–850.

Nitrogen supplied to corn by legumes in a central Amazon Oxisol

Tropical Agriculture, 68(4), 366.

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

AGRONOMY JOURNAL, 82(2), 309–312.

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

AGRONOMY JOURNAL, 82(2), 305–309.