TY  - BOOK
AU  - GEORGE VARUGHESE 
AU  - M.M.KOSHY
TI  - STUDIES ON THE NUTRIENT STATUS OF THE ALLUVIAL SOILS OF KERALA WITH SPECIAL REFERENCE TO THE DISTRIBUTION OF COPPER AND ZINC 
U1  - E N71 GE 42 
PY  - 1971///
CY  - AGRICULTURAL  COLLEGE AND RESEARCH INSTITUTE VELLAYANI
PB  - DIVISION OF AGRICULTURAL CHEMISTRY 
ER  -