TY  - BOOK
AU  - Gupta, Naresh
AU  - Guide: Trivedi, S.K.
TI  - Vertical distribution of zn, cu, fe and mn in some soil series of northern madhya pradesh
U1  - 631.4 
PY  - 1999///
CY  - Gwalior
PB  - Department Of Soil Science And Agricultural Chemistry
KW  - SOIL SCIENCE AND AGRICULTURAL CHEMISTRY
ER  -