Peat humic substances enriched with nutrients for agricultural applications: Competition between nutrients and non-essential metals present in tropical soils

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBotero, Wander Gustavo
dc.creatorde Oliveira, Luciana Camargo
dc.creatorRocha, Julio Cesar
dc.creatorRosa, André Henrique
dc.creatorSantos, Ademir dos
dc.date2014-05-20T13:12:13Z
dc.date2016-10-25T16:32:35Z
dc.date2014-05-20T13:12:13Z
dc.date2016-10-25T16:32:35Z
dc.date2010-05-15
dc.date.accessioned2017-04-05T19:16:12Z
dc.date.available2017-04-05T19:16:12Z
dc.identifierJournal of Hazardous Materials. Amsterdam: Elsevier B.V., v. 177, n. 1-3, p. 307-311, 2010.
dc.identifier0304-3894
dc.identifierhttp://hdl.handle.net/11449/201
dc.identifierhttp://acervodigital.unesp.br/handle/11449/201
dc.identifier10.1016/j.jhazmat.2009.12.033
dc.identifierWOS:000276154500038
dc.identifier0000-0002-2042-018X
dc.identifierhttp://dx.doi.org/10.1016/j.jhazmat.2009.12.033
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/850566
dc.descriptionImproved agricultural productivity, and reduction of environmental impacts, require studies of the interactions between different soil components. Fertilizers marketed as "organic" or "natural", such as peats or humic substances (HS) extracted from peats, are enriched with macro and micronutrients that, according to the manufacturers, are released to the plant in accordance with its needs. This work investigates the complexation capacity of HS for macro and micronutrient metal species, considering the competition, for HS complexation sites, between non-essential metals (aluminium and lead), present in the soil, and the nutrients. Humic substances were found to possess strong affinities for Pb(II) and Al(III), forming stable complexes, with concomitant release of complexed nutrients. Although HS are already used commercially as organic fertilizers, further studies of methods of HS enrichment, aimed at avoiding losses, are highly desirable from environmental and economic perspectives. (C) 2009 Elsevier B.V. All rights reserved.
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherElsevier B.V.
dc.relationJournal of Hazardous Materials
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPeat humic substances
dc.subjectAgricultural application
dc.subjectNutrients
dc.subjectToxic metals
dc.titlePeat humic substances enriched with nutrients for agricultural applications: Competition between nutrients and non-essential metals present in tropical soils
dc.typeOtro


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