TY  - GEN
AU  - Srivastava,S.
TI  - Fertilizer requirement based on soil tests for pigeonpea-wheat cropping system
KW  - NPK fertilizers
KW  - Tests
KW  - Pigeonpea
KW  - Wheat
KW  - Cropping systems
KW  - Field experimentation
KW  - Sampling
KW  - Sowing
N1  - Sampling; Sowing; IARI, Division of Soil Science and Agric
ER  -