Effects of cow-dung and rock phosphate on heavy metal content in soils and plants
O. O. Awotoye1*, D. J. Oyedele2 and B. C. Anwadike1
1Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile –Ife, Nigeria.
2Department of Soil Science, Obafemi Awolowo University, Ile-Ife, Nigeria.
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