Comparison of Chicken Manure and Urea Fertilizers as Potential Soil Amendments for Enhanced Phytoextraction of Heavy Metals

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...

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Bibliographic Details
Published inBioremediation journal Vol. 14; no. 4; pp. 180 - 188
Main Authors Nwaichi, E. O., Onyeike, E. N., Wegwu, M. O.
Format Journal Article
LanguageEnglish
Published Philadelphia, PA Taylor & Francis Group 01.10.2010
Taylor & Francis
Taylor & Francis Ltd
Subjects
amendments
Biodegradation of pollutants
Biological and medical sciences
Bioremediation
Biotechnology
Cadmium
Environment and pollution
Fertilizers
Fundamental and applied biological sciences. Psychology
Heavy metals
Industrial applications and implications. Economical aspects
Manures
Mucuna pruriens
Petroleum
phytoextraction
phytotoxicity
Poultry
Soil contamination
Sphenostylis stenocarpa
Cadmium
amendments
Phytoextraction
Fertilizers
Heavy metal
Soils
Urea
Vertebrata
Amendment
Phytotoxicity
Chicken
Bioremediation
Aves
Comparative study
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Summary: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 of the urea fertilizer gave only rapid, but short, growth support.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1088-9868
1547-6529
DOI:10.1080/10889868.2010.514873