Nitrogen assimilation and productivity; proceedings
Symposium on Nitrogen Assimilation and Crop Productivity, Hissar, Oct. 5-7, 1976.
Nitrogen assimilation and productivity; proceedings Ed by S. P. Sen and others - New Delhi Associated Publishing House 1978 - xiii, 313p.
338.163184 / Sy989.NA
Nitrogen assimilation and productivity; proceedings Ed by S. P. Sen and others - New Delhi Associated Publishing House 1978 - xiii, 313p.
338.163184 / Sy989.NA
