TY  - BK
ED  - Colloquium of the International Potash Institute, 15
TI  - Physiological aspects of crop productivity
U1  - 581.1 
PY  - 1980///
CY  - Bern (Switzerland)
PB  - IPI, 
KW  - Adaptation
KW  - Assimilation
KW  - Constraints
KW  - Hormones
KW  - AGROVOC
KW  - Nutrients
KW  - Phloem
KW  - Plant growth substances
KW  - Plant physiology
KW  - Plant production
KW  - Productivity
KW  - Yields
KW  - Plant breeding
N1  - Illustrations, tables, graphs, references
ER  -