Boron adsorption in soils from the State of São Paulo, Brazil

Detalhes bibliográficos
Autor(a) principal: Alleoni, Luís Reynaldo Ferracciú
Data de Publicação: 2000
Outros Autores: Camargo, Otávio Antonio de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/5763
Resumo: Boron adsorption was studied in five representative soils (Rhodic Hapludox, Arenic Paleudalf and three Typic Hapludox) from the State of São Paulo, Brazil. Adsorption was higher in the clayey Oxisols, followed by the Alfisol and the coarser Oxisols. Calcium carbonate promoted an increase in the amount of adsorbed boron in all soils, with the most pronounced effect in the coarser-textured Oxisols. High correlation coefficients were found between adsorbed boron and clay and amorphous aluminum oxide contents and specific surface area (r = 0.79, 0.76 and 0.73, respectively, p < 0.01). Clay content, free aluminum oxide, and hot CaCl2 (0.01 mol L-1)-extracted boron explained 93% of the variation of adsorbed boron. Langmuir and Freundlich isotherms fitted well to the adsorbed data, and highest values for maximum boron adsorption were found in clayey soils, which were significantly correlated with contents of total, free and amorphous iron and aluminum oxides, as well with the physical attributes. Ninety four percent of the variation in the maximum adsorption could be related to the free iron content.
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spelling Boron adsorption in soils from the State of São Paulo, BrazilAdsorção de boro em solos do Estado de São Paulo, Brasiltropical soils; simple correlation; multiple regression analysissolos tropicais; correlação simples; regressão múltiplaBoron adsorption was studied in five representative soils (Rhodic Hapludox, Arenic Paleudalf and three Typic Hapludox) from the State of São Paulo, Brazil. Adsorption was higher in the clayey Oxisols, followed by the Alfisol and the coarser Oxisols. Calcium carbonate promoted an increase in the amount of adsorbed boron in all soils, with the most pronounced effect in the coarser-textured Oxisols. High correlation coefficients were found between adsorbed boron and clay and amorphous aluminum oxide contents and specific surface area (r = 0.79, 0.76 and 0.73, respectively, p < 0.01). Clay content, free aluminum oxide, and hot CaCl2 (0.01 mol L-1)-extracted boron explained 93% of the variation of adsorbed boron. Langmuir and Freundlich isotherms fitted well to the adsorbed data, and highest values for maximum boron adsorption were found in clayey soils, which were significantly correlated with contents of total, free and amorphous iron and aluminum oxides, as well with the physical attributes. Ninety four percent of the variation in the maximum adsorption could be related to the free iron content.O objetivo deste trabalho foi avaliar os teores de boro adsorvido em solos representativos do Estado de São Paulo (Latossolo Roxo distrófico argiloso, Latossolos Vermelhos-Escuros álicos textura média e muito argilosa, Latossolo Vermelho-Amarelo álico textura média e Podzólico Vermelho-Amarelo eutrófico textura arenosa/média). A adsorção nos Latossolos argilosos foi superior à do Podzólico que, por sua vez, foi superior à dos Latossolos de textura média. A calagem promoveu aumento na quantidade de B adsorvido, principalmente nos Latossolos de textura média. Altas correlações foram encontradas para teores de argila e de óxido de alumínio amorfo, e superfície específica (r = 0,79, 0,76 e 0,73, respectivamente, p < 0,01). Teores de argila, do óxido de alumínio livre e de boro solúvel em CaCl2 (0,01 mol L-1) a quente correlacionaram-se significativamente com o boro adsorvido, com alto coeficiente de determinação na regressão múltipla (0,93). Isotermas de Langmuir e de Freundlich ajustaram-se bem aos dados experimentais, e os maiores valores de adsorção máxima foram dos solos argilosos, que se correlacionaram significativamente com teores totais, livres e amorfos dos óxidos de ferro e de alumínio, com teores de argila e com a superfície específica. Noventa e quatro por cento da variação dos valores de adsorção máxima foram explicados pelo teor de ferro livre.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAlleoni, Luís Reynaldo FerracciúCamargo, Otávio Antonio de2000-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5763Pesquisa Agropecuaria Brasileira; v.35, n.2, fev. 2000; 413-421Pesquisa Agropecuária Brasileira; v.35, n.2, fev. 2000; 413-4211678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/5763/2867info:eu-repo/semantics/openAccess2010-07-30T19:49:02Zoai:ojs.seer.sct.embrapa.br:article/5763Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-07-30T19:49:02Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Boron adsorption in soils from the State of São Paulo, Brazil
Adsorção de boro em solos do Estado de São Paulo, Brasil
title Boron adsorption in soils from the State of São Paulo, Brazil
spellingShingle Boron adsorption in soils from the State of São Paulo, Brazil
Alleoni, Luís Reynaldo Ferracciú
tropical soils; simple correlation; multiple regression analysis
solos tropicais; correlação simples; regressão múltipla
title_short Boron adsorption in soils from the State of São Paulo, Brazil
title_full Boron adsorption in soils from the State of São Paulo, Brazil
title_fullStr Boron adsorption in soils from the State of São Paulo, Brazil
title_full_unstemmed Boron adsorption in soils from the State of São Paulo, Brazil
title_sort Boron adsorption in soils from the State of São Paulo, Brazil
author Alleoni, Luís Reynaldo Ferracciú
author_facet Alleoni, Luís Reynaldo Ferracciú
Camargo, Otávio Antonio de
author_role author
author2 Camargo, Otávio Antonio de
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Alleoni, Luís Reynaldo Ferracciú
Camargo, Otávio Antonio de
dc.subject.por.fl_str_mv tropical soils; simple correlation; multiple regression analysis
solos tropicais; correlação simples; regressão múltipla
topic tropical soils; simple correlation; multiple regression analysis
solos tropicais; correlação simples; regressão múltipla
description Boron adsorption was studied in five representative soils (Rhodic Hapludox, Arenic Paleudalf and three Typic Hapludox) from the State of São Paulo, Brazil. Adsorption was higher in the clayey Oxisols, followed by the Alfisol and the coarser Oxisols. Calcium carbonate promoted an increase in the amount of adsorbed boron in all soils, with the most pronounced effect in the coarser-textured Oxisols. High correlation coefficients were found between adsorbed boron and clay and amorphous aluminum oxide contents and specific surface area (r = 0.79, 0.76 and 0.73, respectively, p < 0.01). Clay content, free aluminum oxide, and hot CaCl2 (0.01 mol L-1)-extracted boron explained 93% of the variation of adsorbed boron. Langmuir and Freundlich isotherms fitted well to the adsorbed data, and highest values for maximum boron adsorption were found in clayey soils, which were significantly correlated with contents of total, free and amorphous iron and aluminum oxides, as well with the physical attributes. Ninety four percent of the variation in the maximum adsorption could be related to the free iron content.
publishDate 2000
dc.date.none.fl_str_mv 2000-02-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5763
url https://seer.sct.embrapa.br/index.php/pab/article/view/5763
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/5763/2867
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.35, n.2, fev. 2000; 413-421
Pesquisa Agropecuária Brasileira; v.35, n.2, fev. 2000; 413-421
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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