Biofertilisers in Indian agriculture
Biswas, B. C.
Biofertilisers in Indian agriculture Biswas, B. C. - New Delhi Fertiliser Association of India 1994 - v, 43 p.
Fertilizers and manures
Agriculture - India
Fertilizer industry
631.816
Biofertilisers in Indian agriculture Biswas, B. C. - New Delhi Fertiliser Association of India 1994 - v, 43 p.
Fertilizers and manures
Agriculture - India
Fertilizer industry
631.816