TY  - GEN
AU  - Verma,B.C.
TI  - Soil fertility change under different multiple cropping sequences
KW  - Soil
KW  - Fertility
KW  - Cropping system
KW  - Crop
KW  - Yields
KW  - Soil management
KW  - Field experimentation
KW  - Carbon
KW  - Nitrogen
KW  - Phosphorus
KW  - Potassium
KW  - wheat
KW  - Bajra
KW  - Paddy
KW  - Mung
ER  -