Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná

Detalhes bibliográficos
Autor(a) principal: Costa, Antonio Carlos Saraiva da
Data de Publicação: 2008
Outros Autores: Torino, Cleonice Aparecida, Rak, João Gilberto
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4262
Resumo: Cation exhange capacity (CEC) and organic carbon values from 39 latosols from the state of Paraná were used to quantify the contribution of the organic and inorganic colloids to the CEC of the soils. The data were adjusted to a linear regression model, where the angular coefficient determined the contribution of the organic colloids and the linear regression coefficient determined the contribution of the inorganic colloids. The mathematical mode presented high coefficients of determination (R2>0,9) for the latosols. In more than 50% of the profiles studied, the CEC values due to the organic colloids varied from 400 to 500 cmolc.kg-1, but CEC values from 200 to 800 cmolc.kg-1 were observed.
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spelling Cation exchange capacity of organic and inorganic colloids of latosols from the state of ParanáCapacidade de troca catiônica dos colóides orgânicos e inorgânicos de latossolos do Estado do ParanáCTCcolóides orgânicos e inorgânicoslatossolos5.01.00.00-9 AgronomiaCation exhange capacity (CEC) and organic carbon values from 39 latosols from the state of Paraná were used to quantify the contribution of the organic and inorganic colloids to the CEC of the soils. The data were adjusted to a linear regression model, where the angular coefficient determined the contribution of the organic colloids and the linear regression coefficient determined the contribution of the inorganic colloids. The mathematical mode presented high coefficients of determination (R2>0,9) for the latosols. In more than 50% of the profiles studied, the CEC values due to the organic colloids varied from 400 to 500 cmolc.kg-1, but CEC values from 200 to 800 cmolc.kg-1 were observed.Valores de capacidade de troca catiônica (CTC) e de carbono de 39 perfis de latossolos do Estado do Paraná foram utilizados para a determinação da CTC dos colóides orgânicos e inorgânicos. Os dados foram ajustados num modelo linear de regressão, na qual o coeficiente angular determinou a contribuição dos colóides orgânicos enquanto o coeficiente linear de regressão determinou a contribuição dos colóides minerais. O modelo utilizado apresentou altos coeficientes de determinação (R2>0,9) para todos os solos estudados. Em mais de 50% dos perfis estudados, os valores de CTC, devido aos colóides orgânicos, variou de 400 a 500 cmolc kg-1, mas foram determinados valores de 200 a 800 cmolc.kg-1.Universidade Estadual de Maringá2008-07-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/426210.4025/actasciagron.v21i0.4262Acta Scientiarum. Agronomy; Vol 21 (1999); 491-496Acta Scientiarum. Agronomy; v. 21 (1999); 491-4961807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4262/2938Costa, Antonio Carlos Saraiva daTorino, Cleonice AparecidaRak, João Gilbertoinfo:eu-repo/semantics/openAccess2022-11-23T18:38:04Zoai:periodicos.uem.br/ojs:article/4262Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:04Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
Capacidade de troca catiônica dos colóides orgânicos e inorgânicos de latossolos do Estado do Paraná
title Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
spellingShingle Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
Costa, Antonio Carlos Saraiva da
CTC
colóides orgânicos e inorgânicos
latossolos
5.01.00.00-9 Agronomia
title_short Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
title_full Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
title_fullStr Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
title_full_unstemmed Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
title_sort Cation exchange capacity of organic and inorganic colloids of latosols from the state of Paraná
author Costa, Antonio Carlos Saraiva da
author_facet Costa, Antonio Carlos Saraiva da
Torino, Cleonice Aparecida
Rak, João Gilberto
author_role author
author2 Torino, Cleonice Aparecida
Rak, João Gilberto
author2_role author
author
dc.contributor.author.fl_str_mv Costa, Antonio Carlos Saraiva da
Torino, Cleonice Aparecida
Rak, João Gilberto
dc.subject.por.fl_str_mv CTC
colóides orgânicos e inorgânicos
latossolos
5.01.00.00-9 Agronomia
topic CTC
colóides orgânicos e inorgânicos
latossolos
5.01.00.00-9 Agronomia
description Cation exhange capacity (CEC) and organic carbon values from 39 latosols from the state of Paraná were used to quantify the contribution of the organic and inorganic colloids to the CEC of the soils. The data were adjusted to a linear regression model, where the angular coefficient determined the contribution of the organic colloids and the linear regression coefficient determined the contribution of the inorganic colloids. The mathematical mode presented high coefficients of determination (R2>0,9) for the latosols. In more than 50% of the profiles studied, the CEC values due to the organic colloids varied from 400 to 500 cmolc.kg-1, but CEC values from 200 to 800 cmolc.kg-1 were observed.
publishDate 2008
dc.date.none.fl_str_mv 2008-07-14
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4262
10.4025/actasciagron.v21i0.4262
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4262
identifier_str_mv 10.4025/actasciagron.v21i0.4262
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4262/2938
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 Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 21 (1999); 491-496
Acta Scientiarum. Agronomy; v. 21 (1999); 491-496
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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