Comparison of H/Al stoichiometry of mineral and organic soils in Brazil

Detalhes bibliográficos
Autor(a) principal: Perez,Daniel Vidal
Data de Publicação: 2009
Outros Autores: Anjos,Lúcia Helena Cunha dos, Ebeling,Adierson Gilvani, Pereira,Marcos Gervasio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ciência do Solo (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000400031
Resumo: Exchangeable Al has been used as a criterion for the calculation of lime requirement in several Brazilian States. However, the laboratory method with extraction by a 1 mol L-1 KCl solution followed by indirect alkaline titration is not accurate for some Brazilian soils, mainly in the case of soils with high organic matter content. The objective of this study was therefore to evaluate the stoichiometry of H+/Al3+ in KCl soil extracts. The results suggested that organically complexed Al is the main contributor to exchangeable acidity in soils enriched with organic matter. Liming recommendations for organic soils based exclusively on exchangeable Al determined by the NaOH titration method should therefore be revised.
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spelling Comparison of H/Al stoichiometry of mineral and organic soils in Brazilacid-base titrationICP-OESKClHistosolsExchangeable Al has been used as a criterion for the calculation of lime requirement in several Brazilian States. However, the laboratory method with extraction by a 1 mol L-1 KCl solution followed by indirect alkaline titration is not accurate for some Brazilian soils, mainly in the case of soils with high organic matter content. The objective of this study was therefore to evaluate the stoichiometry of H+/Al3+ in KCl soil extracts. The results suggested that organically complexed Al is the main contributor to exchangeable acidity in soils enriched with organic matter. Liming recommendations for organic soils based exclusively on exchangeable Al determined by the NaOH titration method should therefore be revised.Sociedade Brasileira de Ciência do Solo2009-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000400031Revista Brasileira de Ciência do Solo v.33 n.4 2009reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/S0100-06832009000400031info:eu-repo/semantics/openAccessPerez,Daniel VidalAnjos,Lúcia Helena Cunha dosEbeling,Adierson GilvaniPereira,Marcos Gervasioeng2009-10-30T00:00:00Zoai:scielo:S0100-06832009000400031Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2009-10-30T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false
dc.title.none.fl_str_mv Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
title Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
spellingShingle Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
Perez,Daniel Vidal
acid-base titration
ICP-OES
KCl
Histosols
title_short Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
title_full Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
title_fullStr Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
title_full_unstemmed Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
title_sort Comparison of H/Al stoichiometry of mineral and organic soils in Brazil
author Perez,Daniel Vidal
author_facet Perez,Daniel Vidal
Anjos,Lúcia Helena Cunha dos
Ebeling,Adierson Gilvani
Pereira,Marcos Gervasio
author_role author
author2 Anjos,Lúcia Helena Cunha dos
Ebeling,Adierson Gilvani
Pereira,Marcos Gervasio
author2_role author
author
author
dc.contributor.author.fl_str_mv Perez,Daniel Vidal
Anjos,Lúcia Helena Cunha dos
Ebeling,Adierson Gilvani
Pereira,Marcos Gervasio
dc.subject.por.fl_str_mv acid-base titration
ICP-OES
KCl
Histosols
topic acid-base titration
ICP-OES
KCl
Histosols
description Exchangeable Al has been used as a criterion for the calculation of lime requirement in several Brazilian States. However, the laboratory method with extraction by a 1 mol L-1 KCl solution followed by indirect alkaline titration is not accurate for some Brazilian soils, mainly in the case of soils with high organic matter content. The objective of this study was therefore to evaluate the stoichiometry of H+/Al3+ in KCl soil extracts. The results suggested that organically complexed Al is the main contributor to exchangeable acidity in soils enriched with organic matter. Liming recommendations for organic soils based exclusively on exchangeable Al determined by the NaOH titration method should therefore be revised.
publishDate 2009
dc.date.none.fl_str_mv 2009-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000400031
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000400031
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-06832009000400031
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
dc.source.none.fl_str_mv Revista Brasileira de Ciência do Solo v.33 n.4 2009
reponame:Revista Brasileira de Ciência do Solo (Online)
instname:Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS
instname_str Sociedade Brasileira de Ciência do Solo (SBCS)
instacron_str SBCS
institution SBCS
reponame_str Revista Brasileira de Ciência do Solo (Online)
collection Revista Brasileira de Ciência do Solo (Online)
repository.name.fl_str_mv Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)
repository.mail.fl_str_mv ||sbcs@ufv.br
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