TY  - BOOK
ED  - International Rice Research Institute.
TI  - Symposium on Potential productivity of field crops under different environments
SN  - 9711041146
U1  - PHI POT 1983 C077 Or. 
KW  - Crops and climate
KW  - Field crops
KW  - Crop yields
KW  - Soil productivity
KW  - Cropping systems
ER  -