Comparison of Chicken Manure and Urea Fertilizers as Potential Soil Amendments for Enhanced Phytoextraction of Heavy Metals
| Autor: | Eugene N. Onyeike, Eucharia Oluchi Nwaichi, M. O. Wegwu |
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| Rok vydání: | 2010 |
| Předmět: |
biology
Chemistry fungi food and beverages Soil classification engineering.material biology.organism_classification complex mixtures Soil contamination Soil conditioner chemistry.chemical_compound Agronomy Urea engineering Phytotoxicity Chicken manure Fertilizer Mucuna pruriens General Environmental Science |
| Zdroj: | Bioremediation Journal. 14:180-188 |
| ISSN: | 1547-6529 1088-9868 |
| DOI: | 10.1080/10889868.2010.514873 |
| Popis: | Cadmium (Cd) solubilization in soil and uptake by Mucuna pruriens var. pruriens and Sphenostylis stenocarpa was studied in response to the chicken manure and urea fertilizers application types. In this study, 0.8 g each of the amendments was applied to petroleum-contaminated soil in a pot experiment. Results indicate that the chicken manure application at 14 days before planting gave significantly higher shoot dry matter than its urea counterpart under conditions of Cd stress. Chicken manure application resulted in less Cd solubilization as compared with urea fertilizer dosing. The chicken manure application also significantly increased the shoot Cd accumulation despite its lesser effect on Cd solubilization; thus, it is expected to minimize the risk of groundwater contamination. Chicken manure amended treatment showed greater Cd tolerance for the two species investigated and S. stenocarpa did not support Cd phytoextraction. Although the amendments gave marked reduction in Cd phtotoxicity, those ... |
| Databáze: | OpenAIRE |
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