TY  - GEN
AU  - George,M.
TI  - Studies on the effect of cereal-cereal and cereal-legume cropping systems on the productivity and fertility of soil
KW  - Cereals
KW  - Legumes
KW  - Cropping systems
KW  - Productivity
KW  - Fertility
KW  - Field experimentation
KW  - Residual effects
ER  -