Heavy metals availability and fractions in soil amended with biosolid composts

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dc.contributor.authorRevoredo, M. D. [UNESP]
dc.contributor.authorCintra, A. A D [UNESP]
dc.contributor.authorBraz, L. T. [UNESP]
dc.contributor.authorMelo, W. J. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:22:43Z
dc.date.available2014-05-27T11:22:43Z
dc.date.issued2007-12-01
dc.description.abstractThe heavy metals when linked to organic matter have a behavior in the soil that is still little known. This study aimed to evaluate the effect of sewage-sludge-based composts when incorporated in the soil, in relation to heavy metals availability. Five composts were incorporated using sugar-cane bagasse, sewage sludge and cattle manure in the respective proportions: 75-0-25, 75-12.5-12.5, 75-25-0, 50-50-0 and 0-100-0 (composts with 0, 12.5, 25, 50 and 100% sewage sludge). The experiment consisted of 6 treatments (5 composts and a control with mineral fertilization) in randomized blocks with a split-plot design. The control and the treatment of 0% sewage sludge received inorganic nitrogen (N). All the treatments received the same amount of N (8.33 g) K (5.80 g) and K (8.11 g) per pot. Tomato plants were cultivated in 24.0 L pots in a greenhouse in Jaboticabal, SP, Brazil. The concentrations of heavy metals were determined in the soil samples at day 0 after compost incorporation. The higher the sewage sludge doses, the higher heavy metal contents in the soil. Among extractants, Melhlich-1 extracted the highest amount of heavy metals, while DTPA extracted the lowest one. The residual fraction presented the highest heavy metal content, followed by Fe oxides crystalline and amorphous to Cu, Cr and Mn, and Mn oxides, and Fe amorphous to Zn, indicating strong associations to oxides and clays. There were significant positive correlations between Mn contents in the plant and Mn linked to Fe oxide amorphous and crystalline.en
dc.description.affiliationDepartamento de Tecnologia Faculdade de Ciências Agrárias e Veterinárias UNESP, Jaboticabal, SP, CEP 14884-900
dc.description.affiliationDepartamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias UNESP, Jaboticabal, SP, CEP 14884-900
dc.description.affiliationUnespDepartamento de Tecnologia Faculdade de Ciências Agrárias e Veterinárias UNESP, Jaboticabal, SP, CEP 14884-900
dc.description.affiliationUnespDepartamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias UNESP, Jaboticabal, SP, CEP 14884-900
dc.format.extent365-372
dc.identifierhttp://www.actahort.org/books/762/762_35.htm
dc.identifier.citationActa Horticulturae, v. 762, p. 365-372.
dc.identifier.issn0567-7572
dc.identifier.scopus2-s2.0-61449154561
dc.identifier.urihttp://hdl.handle.net/11449/70156
dc.identifier.wosWOS:000255679300035
dc.language.isoeng
dc.relation.ispartofActa Horticulturae
dc.relation.ispartofsjr0,198
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectComposting process
dc.subjectEnvironmental impact
dc.subjectExtractors
dc.subjectLycopersicon esculentum Mill.
dc.subjectSequential extraction
dc.subjectSewage sludge
dc.subjectBos
dc.subjectLycopersicon esculentum
dc.subjectSaccharum
dc.titleHeavy metals availability and fractions in soil amended with biosolid compostsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ishs.org/authors
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentProdução Vegetal - FCAVpt
unesp.departmentTecnologia - FCAVpt

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Jaboticabal - FCAV - Faculdade de Ciências Agrárias e Veterinárias