TY  - BK
AU  - Ladha,J.K.
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Asian Regional Maize Program
TI  - How extensive are yield declines in log-term rice-wheat experiments in Asia
SN  - 81-88572-00-4
U1  - 338.154 
PY  - 2003///
CY  - New Delhi (India)
PB  - RWC|CIMMYT
KW  - Asia
KW  - China
KW  - Crop management
KW  - AGROVOC
KW  - Rice
KW  - Soil biology
KW  - Varieties
KW  - Wheat
KW  - Soil fertility
KW  - Yields
KW  - Agricultural research
KW  - CIMMYT
KW  - Rice Wheat Consortium
ER  -