Singh, B.K.
Economically optimal fertilizer requirements for wheat and paddy crops in different regions of Uttar Pradesh - 1984 - 639-48 - Oct.-Dec.
Fertilizers - India - Uttar Pradesh
Economically optimal fertilizer requirements for wheat and paddy crops in different regions of Uttar Pradesh - 1984 - 639-48 - Oct.-Dec.
Fertilizers - India - Uttar Pradesh
