TY  - GEN
AU  - Perrenoud, S
TI  - Potassium and plant health
U1  - 631.83 
PY  - 1990///
CY  - Switzerland
PB  - International Potash institute
KW  - Agriculture and related technologies
KW  - Potassium fertilizers
KW  - Fertilizers,soil conditioners,growth regulators
KW  - Specific techniques
ER  -