Potassium in tropical crops and soils/
10ª Colloque od the International Potash Intstute
- Suiza : International Potash Intstute, 1974
- 603 p
ABONOS DE POTASIO
ABONOS Y FERTILIZANTES
631.86 C719
ABONOS DE POTASIO
ABONOS Y FERTILIZANTES
631.86 C719