TY  - BOOK
AU  - Varughese,George
TI  - Studies on the nutrient status of the alluvial soils of Kerala with special reference to the distribution of copper and zinc
KW  - Soil analysis
KW  - soil science
KW  - copper
KW  - zine
KW  - heavy metals
KW  - soil chemistry
KW  - soil structure
ER  -