TY  - BOOK
TI  - Plant Nutrient Needs, Supply, Efficiency and Policy Issues : 2000-2025
U1  - 631.81  N9 
PY  - 1997///
CY  - New Delhi
PB  - National Academy of Agricultural Sciences
KW  - J.S.Kanwar ,Ed
KW  - J.C.Katyal
KW  - Fertilisers,Biofertilizers,Plant Nutrition,Sulphur,Green manuring
ER  -