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Title: Application of Coal Fly Ash in Agriculture: A Strategic Perspective
Contributor(s): Yunusa, Isa  (author); Loganathan, P (author); Nissanka, SP (author); Manoharan, V (author); Burchett, Margaret D (author); Skilbeck, C Greg (author); Eamus, Derek (author)
Publication Date: 2012
DOI: 10.1080/10643389.2010.520236
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Abstract: Fly ash is a major waste of coal-power generation and its management is a major environmental and economic challenge, and it will become even more critical with a projected increase in the reliance on coal for power generation. The authors discuss how the unique physicochemical properties of ash can be strategically employed to ameliorate acidity and sodicity, and physical and fertility constraints, in agricultural soils. They show that with careful selection of ash type and methods and rates of application, mutually compatible with the soil and crop type, the often reported phytotoxicity due to high concentrations of certain trace metals can be avoided while maintaining the quality of produce and minimizing risk to the environment. Specific examples are presented to demonstrate where it is economical to use fly ash as a low-cost alternative to certain fertilizers and liming materials on farms. The authors also propose criteria for the selection of ash and for regulatory parameters that would ensure the safe and routine utilization of ash in plant production systems.
Publication Type: Journal Article
Source of Publication: Critical Reviews in Environmental Science and Technology, 42(6), p. 559-600
Publisher: Taylor & Francis Inc
Place of Publication: United States of America
ISSN: 1547-6537
Field of Research (FOR): 050299 Environmental Science and Management not elsewhere classified
Socio-Economic Objective (SEO): 960699 Environmental and Natural Resource Evaluation not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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