TY  - GEN
AU  - Ramavatharam,N.
TI  - Calibration of soil tests for the fertilizers requirements of wheat in Daryapur and Kokra soil series of Delhi
KW  - Farmers
KW  - Nutrients
KW  - Design
KW  - Field experimentation
KW  - NPK fertilizers
KW  - Irrigation
KW  - Yields
ER  -