TY  - BK
AU  - Carlson,C.
AU  - Gibbs,M.
ED  - An International Conference
TI  - Crop productivity research imperatives revisited
U1  - 338.1097 
PY  - 1985///
CY  - Airlie, VA (USA)
PB  - Michigan Agricultural Experiment Station, 
KW  - Agricultural development
KW  - AGROVOC
KW  - Carbon
KW  - Education
KW  - Energy sources
KW  - Environmental factors
KW  - Farm inputs
KW  - Food production
KW  - Food supply
KW  - Manpower
KW  - Minerals
KW  - Pest control
KW  - Plant nutrition
KW  - Plant protection
KW  - Productivity
KW  - Rice
KW  - Soils
KW  - Technology transfer
KW  - Water
KW  - Genetic resources
KW  - Nitrogen fertilizers
KW  - Plant breeding
ER  -