TY  - BOOK
AU  - Babu,T.R.
TI  - studies on the effects of various zinc & phosphorus treatment combinations on maize growth in local red & black soils
KW  - Zinc
KW  - Heavy metals
KW  - Crops
KW  - Plant products
KW  - Fertilizer
KW  - Soil science
KW  - Soil chemistry
ER  -