Relationship between soil properties, p sorption characteristics and fertilizer p for optimum yield of soybean (Glycine Max (L.) Merr.) on some inceptisols in Benue

Abstract

Phosphorus (P) sorption influences P requirement of Nigerian soils. Four Inceptisols in Benue state were therefore used to examine the influence of soil properties on sorption indices and yield of soybean. Soil inorganic P was fractionated using standard procedures. Sorption characteristics were determined in 0.01 M CaCl 2 solutions of various P concentrations. For each soil, the amounts of P that gave 0