TY  - BOOK
ED  - IPI-Congress
TI  - Potassium symposium: 12 papers read at the Fourth Congress of the International Potash Institute (4 sessions), Madrid 1958
PY  - 1958///
CY  - Berne
PB  - The Institute
KW  - Potassium fertilizers
KW  - Soils
KW  - Potassium content
N1  - English, German, Spanish & French text
ER  -