Fred R Cox

Peanut, corn, and cotton critical levels for phosphorus and potassium on Goldsboro soil

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 33(7-8), 1173–1186.

Greenhouse evaluation of four boron fertilizer materials

JOURNAL OF PLANT NUTRITION, 24(4-5), 717–725.

Estimating buffer coefficients for the phosphorus decision support system: Preliminary comparisons among field and laboratory estimates from three Asian upland soils

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, Vol. 31, pp. 2101–2110.

Soil test phosphorus and clay content effects on runoff water quality

JOURNAL OF ENVIRONMENTAL QUALITY, 29(5), 1582–1586.

Effects of acidity at high soil zinc, copper, and manganese on peanut, rice, and soybean

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 30(9-10), 1371–1384.

Iron deficiency and zinc toxicity in soybean grown in nutrient solution with different levels of sulfur

JOURNAL OF PLANT NUTRITION, 21(8), 1715–1722.

Mehlich-3 phosphorus buffer coefficients

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, Vol. 29, pp. 1751–1761.

Properties of ultisols and oxisols related to Mehlich-3 phosphorus buffer coefficients

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 29(9-10), 1155–1166.

Zinc and copper toxicity in peanut, soybean, rice, and corn in soil mixtures

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 29(19-20), 2991–3005.

Zinc toxicity in soybean grown at high iron concentration in nutrient solution

JOURNAL OF PLANT NUTRITION, 21(8), 1723–1730.

Rhythmic movement of leaves in soybean plants grown under Zn toxicity at different doses of Fe and S

Revista Brasileira De Fisiologia Vegetal, 9(2), 131–134.

Uncertainty analysis for knowledge-based decision aids: Application to PDSS (phosphorus decision support system)

AGRICULTURAL SYSTEMS, 55(3), 461–471.

Economic phosphorus fertilization using a linear response and plateau function

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, Vol. 27, pp. 531–543.

Current research on organic phosphorus

In Z. Kouyate & C. W. Wendt (Eds.), Soil water efficiency of sorghum and cowpea as affected by nutrient input and tillage (p. 141). Raleigh, NC : Soil Management Collaborative Research Support Program, North Carolina State University.

MANAGEMENT AND DYNAMICS OF POTASSIUM IN A HUMID TROPICAL ULTISOL UNDER A RICE-COWPEA ROTATION

AGRONOMY JOURNAL, 84(4), 655–660.

POTASSIUM IN 2 HUMID TROPICAL ULTISOLS UNDER A CORN AND SOYBEAN CROPPING SYSTEM .1. MANAGEMENT

AGRONOMY JOURNAL, 84(3), 480–484.

RESIDUAL VALUE OF COPPER FERTILIZATION

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 23(1-2), 101–112.

Interpretive summary of Part 1: factors affecting the availability of phosphorus in soils of the semi-arid tropics

Phosphorous Nutrition of Grain Legumes in the Semi-Arid Tropics, 43.

A note on the effect of soil reaction and zinc concentration on peanut tissue zinc

Peanut Science, 17(1), 15.

READILY MEASURABLE SOIL PROPERTIES THAT AFFECT THE PHOSPHORUS-FERTILIZER REQUIREMENT OF ULTISOLS

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 21(17-18), 2079–2088.

Effect of temperature on time from planting to flowering in Virginia type peanuts (Arachis hypogaea L.)

Peanut Science, 1(2), 86.

Micronutrient soil tests

In Micronutrients in agriculture: proceedings of a symposium held at Muscle Shoals, Alabama, April 20-22, 1971 (p. 289). Madison: Soil Science Society of America.