TY  - GEN
AU  - 
AU  - Yadav, D.S., ed.
AU  - Singh, D.K., ed.
TI  - Proceedings of Seminar on Constraint analysis for optimum use of fertilizers to increase agricultural production in Northern region
PY  - 1989///
CY  - New Delhi
PB  - Fertilizer Association of India
KW  - Fertilizer Use
KW  - Agricultural Production
ER  -