Kiran, B.R. and Prasad, M. 2019. Phytoremediation of Pb Spiked Soils Amended with Iron Impregnated Rice Husk Ash Using Ricinus communis L. (Castor bean). Journal of Botanical Research. 1, 3 (Oct. 2019), 1–7. DOI:https://doi.org/10.30564/jrb.v1i3.1306.