TY  - BOOK
AU  - Sen, S. P.
AU  - Abrol, Y. P.
TI  - Nitrogen Assimilation and Crop Productivity
U1  - 631.84 
PY  - 1978///
CY  - New Delhi
PB  - Associated Publishing Company
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Crop production
KW  - Nitrogen assimilation
ER  -