TY  - GEN
TI  - Potassium in tropical crops and soils: proceedings of the 10th colloquium of the international potash institute held in december 1973 in Abidjan/republic of Ivory Coast   
U1  - 631.83 
PY  - 1973///
CY  - Switzerland
PB  - International potash institute
KW  - Potassium fertilizers
KW  - Fertilizers,soil conditioners,growth regulators
KW  - Agriculture and related technologies
KW  - Specific techniques
ER  -