TY  - BOOK
AU  - C. Prem Kumar
AU  -  A.P. Nagaraju  Department of Agronomy
TI  - Response of cowpea [Vigna unguiculata (L.)Walp] To sources of phosphorus and zinc levels
U1  - 630 
PY  - 2000///
CY  - Bangalore
PB  - University of Agricultural Scineces Bangalore
ER  -