TY  - GEN
AU  - Fageria, N. K. 
AU  - Clark, R. B.
AU  - Baligar, V. C
TI  - Physiology of crop production
SN  - 9781560222880
U1  - 571.2 
PY  - 2006///
CY  - New York
PB  - Food Products Press
KW  - Crop yields
KW  - Crops-physiology
ER  -