TY  - GEN
AU  - SINGH, S S
TI  - PRINCIPLES AND PRACTICES OF AGRONOMY
U1  - 630 SIN/PR 
CY  - NEW DELHI, KALYANI
KW  - CRO PLANING
KW  - CROP IDENTIFICATION
KW  - SEED
KW  - SOIL FERTILITY
KW  - WEED CONTROL
ER  -