The field experiment on rice crop was conducted at research farm of C.S.A. University of Agriculture & Technology Kanpur, during Kharif season 2013-14. The doses of experiment were 50% NPK, 50% NPK+ S40, 50% NPK + S40 + Zn5, 50% NPK +Zn5, 100% NPK, 100% NPK + S40, 100% NPK + Zn5 and 100% NPK + S40 +[r]