Economic viability of soybean production with Sulphur and phosphorus nutrients on yield and yield attributes of soybean

A field experiment was conducted at Agriculture Research Station, Kota to evaluate the response of phosphorus levels with and without PSB inoculation and sulphur levels on yield & yield attributes, harvest index (HI) and economics of soybean in kharif season of 2006 and 2007. The experiment was conducted under split plot design with three replications and consisted of four levels of sulphur (0, 20, 40 and 60 kg S/ha) and seven levels of phosphorus (0,20, 20+PSB, 40, 40+PSB, 60 and 60+PSB P2O5 kg/ha) in main and subplots respectively. The effect of different doses of sulphur and phosphorus application on seed yield of soybean was significant indicating that there is differential requirement of sulphur and phosphorus to maximize yield. On mean performance basis, the application of 40kg S per ha significantly influenced the seed yield over its proceeding doses. Seed yield were also significantly increased by 40 kg P2O5/ha with PSB inoculation over its lower levels.