TY  - BOOK
ED  - International Potash Institute Colloquium
TI  - Nutrient balances & fertilizer needs in temperate agriculture / 
U1  - 631.8 
PY  - 1984///
CY  - Bern
PB  - International Potash Institute, 
KW  - Agriculture
KW  - Nutrition physiology
KW  - Fertilizers
ER  -