Nitrogen assimilation and crop productivity; proceedings. - Symposium on Nitrogen Assimilation and crop productivity, Hissar, Oct.5-7,1976. (New Delhi Associated publishing company, 1978)
Keywords: S.P.Sen, Y.P.Abrol and S.K.Sinha.; Abrol, Y.P. & Sinha,S.K., joint ed; Sen, S.P., ed; Crop yields-congresses,Nitrogen assimilation,Nitrogen excretion,Plants-Nitrate effect