TY  - BOOK
AU  - Kemmler, G.
AU  - Malicornet, H.
TI  - Fertilizer experiments ; the need for longterm trials
T2  - IPI. Research topics
PY  - 1976///
CY  - Bern
PB  - International Potash Institute
KW  - Fertilizantes
KW  - Experimentación
ER  -