Response of soybean (Glycine max) to phosphorus and sulphur in Acid alfisol of Meghalaya

A field experiment was conducted during the rainy (kharif) season of 1998 and 1999 on a phosphorus - and sulphur-deficient Hapludalf, to evaluate the influence of different levels of phosphorus and sulphur on yield, yield attributes, nutrient uptake and seed quality of soybean [Glycine max (L.) Merr.]. All the P and S levels significantly increased the grain and straw yields, pods/plant, 100-seed weight, oil and protein content and their yields and N P and S uptake by soybean. The N: S ratio in the seed reduced significantly by both P and S application. Interaction of P and S was also significant for all the parameters studied. Application of 60 kg P₂O₅ along with 40 kg S/ha was the optimum dose of P and S for getting the highest yield.