Grewal, J S
Potassium and ammonium fixation in Indian soils - New Delhi Indian Council of Agricultural Research 1973 - 70
Soils--Ammonium content
Soils--Potassium content
631.484/GRE
Potassium and ammonium fixation in Indian soils - New Delhi Indian Council of Agricultural Research 1973 - 70
Soils--Ammonium content
Soils--Potassium content
631.484/GRE