TY  - BOOK
TI  - Potassium, Kalium Potasio Symposium : Role of Fertilization in the Intensification of Agricultural Production
U1  - 631 
PY  - 1970///
CY  - Berne
PB  - International Potash Institute
KW  - Fertilisers
KW  - Techniques, equipment & materials
ER  -