TY  - BOOK
AU  - Blume, James M
TI  - Soil fertility and how to maintain it
U1  - PH 631.452(047) J7 
PY  - 1957///
CY  - New Delhi
PB  - ICAR
KW  -  James M Blume and S.P.Raychadhuri
KW  - Raychadhuri, S.P jt.auth.
KW  - Soil Science,Soil fertility
ER  -