TY  - BOOK
AU  - Ashok Kumar
TI  - Studies on the Compatibility of Varieties and Rates of NPK in Rice-Wheat System / 
U1  - 633.1047 
PY  - 1997///
CY  - .- Pusa, Samastipur
PB  - : RAU
KW  - Agronomy
KW  - Rice-Wheat System
KW  - Thesis
KW  - Ph. D
ER  -