TY  - BOOK
AU  - Shivashankar, K. ,
TI  - Maximum Economic Yields in Alfisols of Karnataka in inter and Sequential Cropping Systems
U1  - 631.5 
PY  - 1993///
CY  - Haryana
PB  - Potash and Phosphate Institute of Canada
KW  - Techniques, equipment & materials
ER  -