Effect of doses and sources of sulphur on growth, nodulation, physiological characters and yield of soybean

Field experiment was conducted on three sulphur sources (gypsum, pyrite and single super-phosphate) and five doses of sulphur (0, 10, 20, 30 and 40 kg/ha) on Typic Chromustert during kharif seasons of 2006 and 2007 at Tikamgarh. Results revealed that single super-phosphate was the yielder, nodulation, growth and physiological characters significantly over gypsum and pyrite. Highest yield, nodulation, growth and physiological characters were also recorded in single super-phosphate. Application of 40 kg S/ha resulted in significant increase in yield, nodulation, growth and physiological characters of soybean, but the significant response was observed upto 30 kg S/ha.