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Influence of Different Organic-Based Fertilizers on the Phytoremediating Potential of Calopogonium mucunoides Desv. from Crude Oil Polluted Soils | OMICS International | Abstract
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
Open Access

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Research Article

Influence of Different Organic-Based Fertilizers on the Phytoremediating Potential of Calopogonium mucunoides Desv. from Crude Oil Polluted Soils

M. B. Adewole* and Y. I. Bulu
Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile-Ife, Nigeria
Corresponding Author : MB Adewole
Institute of Ecology and Environmental Studies
Obafemi Awolowo University, Ile-Ife, Nigeria
E-mail: [email protected]
Received February 16, 2012; Accepted April 12, 2012; Published April 14, 2012
Citation: Adewole MB, Bulu YI (2012) Influence of Different Organic-Based Fertilizers on the Phytoremediating Potential of Calopogonium mucunoides Desv. from Crude Oil Polluted Soils. J Bioremed Biodegrad 3:144. doi:10.4172/2155-6199.1000144
Copyright: © 2012 Adewole MB, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

A greenhouse experiment was conducted to investigate the growth of Calopogonium mucunoides in soils contaminated by various concentrations of crude oil with a view of assessing its phytoremediating potential when different organic-based fertilizers were applied. The crude oil prepared at different concentrations of 0.0, 2.5, 5.0, 10.0 and 20.0% (v/v) acted as contaminants on 3 kg each of the air-dried soil collected from exhaustively cropped farm. Each treatment was replicated thrice in complete randomized design with four different fertility management levels, namely: 8t ha -1 compost organic fertilizer (CM); 8t ha -1 neem fortified organic fertilizer (NM); control 1 , without fertilizer application (C1) and Control 2 , where no fertilizer and no crop but crude oil was applied (C2). Significantly (p<0.05) highest total petroleum hydrocarbon (THC) uptake (10 -2 mg kg -1 ) of 1.08, 0.52 and 0.21; 1.01, 0.51 and 0.11 in the roots and shoots for CM, NM and C1 treatments respectively were obtained at 2.5% contamination. Also, significantly (p<0.05) higher values of (10 -2 mg kg -1 ) 2.57, 1.49 and 0.37; 3.02, 0.98 and 0.58 for Pb in the roots and shoots with CM, NM and C1 treatments respectively were phytoremediated at 5.0% contamination. Lower values of Cd were removed at different contamination levels and fertilizer treatments. With increased contamination, there was a reduction in the uptake of THC and Cd, while higher Pb bioaccumulated. The study concluded that C. mucunoides plant could be effectively used in the phytoremediation of crude oil contaminated soil when compost organic fertilizer is applied.

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