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Evaluation of Two Industrial By-products as Soil Conditioners for Reducing Potential Aluminium Toxicity and Acidity in a Palexerult of Western Spain

AuthorsGarrido, Fernando ; Aguilar Carrillo, Javier ; García-González, M. T.
KeywordsAluminium toxicity
Industrial by-products
Soil acidity
Issue Date2011
PublisherTaylor & Francis
CitationCommunications in Soil Science and Plant Analysis 42: 2604-2614 (2011)
AbstractA field experiment evaluated the effects of surface applications of two industrial by-products (sugar foam and phosphogypsum) to an acidic Ultisol of the temperate zone in Spain to ameliorate topsoil and subsurface acidity and potential aluminium (Al) toxicity. The by-products were applied in single and combined amendments and at two different rates. Two years after their application, it was determined that applications at a low rate of sugar foam and sugar foam + phosphogypsum increased the pH and the exchangeable calcium (Ca) and reduced the exchangeable Al in the surface horizon of the soil while only a significant reduction of exchangeable Al was obtained in the subsurface horizon. Long-term amelioration of acidity and potential Al toxicity were only achieved upon the addition of these treatments at high rate. The addition of sugar foam at a high rate provides an effective practice for long-term acidity amelioration from the surface downward.
Description11 páginas, ilustraciones y tablas estadísticas.
Publisher version (URL)http://dx.doi.org/10.1080/00103624.2011.614036
Appears in Collections:(ICA) Artículos
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