TY  - BOOK
ED  - 10ª Colloque of the International Potash Intstute held in décembre, 1973
TI  - Potassium in tropical crops and soils/ 
U1  - 631.86 C719 
PY  - 1974///
CY  - Suiza : 
PB  - International Potash Intstute, 
KW  - ABONOS DE POTASIO
KW  - ABONOS Y FERTILIZANTES
ER  -