Potassium symposium : 12 papers read at the Fourth Congress of the International Potash Institute (4 sessions), Madrid 1958.
Potassium symposium : 12 papers read at the Fourth Congress of the International Potash Institute (4 sessions), Madrid 1958.
- Berne : The Institute, 1958.
- 426 p. : ill.
English, German, Spanish & French text.
Potassium fertilizers.
Soils--Potassium content.
English, German, Spanish & French text.
Potassium fertilizers.
Soils--Potassium content.