TY  - BOOK
AU  - Nambiar, K.K.M.
TI  - Soil fertility and crop productivity under long term fertiliser use in India
U1  - 631.81 N4 
PY  - 1994///
CY  - New Delhi
PB  - ICAR
KW  -  K.K.M.Nambiar
KW  - Soil science,Soil fertility,Crop productivity,Soil nutrition
ER  -