TY  - BOOK
AU  - 
AU  - Tandon,H L S
TI  - Nitrogen research and crop production
SN  - 8185116423
U1  - 631.84 
PY  - 1996///
CY  - New Delhi
PB  - Fertiliser development and consultation organisation
KW  - Nitrogenous fertilisers
ER  -