Effect of Phosphorus and Sulphur Levels on Yield, Fractions of Phosphorus and Sulphur and Nitrate Reductage Activity of Soil after Harvest of Soybean

A field experiments were conducted to study the effect of phosphorus and sulphur levels on yield, fractions of P and S and nitrate reductase activity of soil after harvest of soybean at Research Farm, Department of Soil Science and Agril. Chemistry, MKV, Parbhani (M.S.). The treatment consisted of four levels P (P₀, P₃₀, P₆₀ and P₉₀ kg P₂O₅ ha^-1) and four levels of S (S₀, S₂₀, S₄₀ and S₆₀ kg ha^-1) applied through DAP and elemental sulphur. Result indicated that grain and straw yield, Leghaemoglobin content from ischolar_main nodules at 30 DAS and nitrate reductage activity of soil after harvest of soybean increased with increase in rate of application of P and S. The applied S and P increased the P and S fractions over control.