Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina

Detalhes bibliográficos
Autor(a) principal: Pereira, Marcos Gervasio
Data de Publicação: 2020
Outros Autores: Araújo, André Lucas Simões, Dortzbach, Denilson, Tavares, Orlando Carlos Huertas, Silva Neto, Eduardo Carvalho
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/531
Resumo: Correction of the pH of acid soils is critical to increase crop productivity and liming is one of the most common practices for this correction. In Rio Grande do Sul and Santa Catarina states, this recommendation is based on soil pH determination using the SMP buffer solution. This method has been used in these states due to its practicality and applicationfor liming calculation. However, this estimate must be regionalized due to the different physical, chemical and mineralogical characteristics of the soils. The objective of this study was to evaluate the relationship between pH SMP, H + Al content and soil chemical attributes, total organic carbon and chemical fractionation of organic matter. Forty-three samples of surface horizons of highland soils of Santa Catarina were used in this study. From the results, it can be verified that the SMP pH presents asignificant correlation with the H + Al content, as well as other chemical attributes of the soils. Thus it is possible to estimate the potential acidity through the exponential model 62,48e-0,41pHSMP and the values of H + Al can be estimated by this equationand the values of H + Al can be estimated by this equation.
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spelling Estimation of potential acidity by the pH SMP method in soils of altitude from Santa CatarinaEstimativa da acidez potencial através do método do pH SMP em solos de altitude de Santa CatarinaAluminumcation exchange capacitychemical analysisliming.Alumínioanálise químicacalagemcapacidade de troca catiônica.Correction of the pH of acid soils is critical to increase crop productivity and liming is one of the most common practices for this correction. In Rio Grande do Sul and Santa Catarina states, this recommendation is based on soil pH determination using the SMP buffer solution. This method has been used in these states due to its practicality and applicationfor liming calculation. However, this estimate must be regionalized due to the different physical, chemical and mineralogical characteristics of the soils. The objective of this study was to evaluate the relationship between pH SMP, H + Al content and soil chemical attributes, total organic carbon and chemical fractionation of organic matter. Forty-three samples of surface horizons of highland soils of Santa Catarina were used in this study. From the results, it can be verified that the SMP pH presents asignificant correlation with the H + Al content, as well as other chemical attributes of the soils. Thus it is possible to estimate the potential acidity through the exponential model 62,48e-0,41pHSMP and the values of H + Al can be estimated by this equationand the values of H + Al can be estimated by this equation.A correção do pH de solos ácidos é de suma importância para o aumento da produtividade das culturas, sendo a calagem uma das práticas mais usuais para essa correção. Nos estados da região sul do Brasil, essa recomendação tem como base a determinação do pH do solo com o emprego da solução tampão SMP. Esse método vem sendo utilizado nesses estados devido a sua praticidade e aplicação para o cálculo de calagem. Entretanto, é preciso que haja regionalização desta estimativa devido as diferentes características físicas, químicas e mineralógicas dos solos. O objetivo do estudo foi avaliar as relações entre o pH SMP, os teores de H + Al e os s atributos químicos do solo, carbono orgânico total e fracionamento químico da matéria orgânica. Foram utilizadas 43 amostras de horizontes superficiais de solos altomontanos dede Santa Catarina. A partir dos resultados, pode-se verificar que o pH SMP apresenta uma correlação significativa com o teor de H + Al, assim como outros atributos químicos dos solos, sendo assim possível estimar a acidez potencial por intermédio do modelo exponencial 62,48e-0,41x, podendo os valores de H+Al serem estimados por essa equaçãoEmpresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2020-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/53110.52945/rac.v33i1.531Agropecuária Catarinense Journal; Vol. 33 No. 1 (2020); 50-55Agropecuária Catarinense; v. 33 n. 1 (2020); 50-552525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/531/706https://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPereira, Marcos GervasioAraújo, André Lucas SimõesDortzbach, DenilsonTavares, Orlando Carlos HuertasSilva Neto, Eduardo Carvalho2021-06-01T16:36:59Zoai:ojs.publicacoes.epagri.sc.gov.br:article/531Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-06-01T16:36:59Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
Estimativa da acidez potencial através do método do pH SMP em solos de altitude de Santa Catarina
title Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
spellingShingle Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
Pereira, Marcos Gervasio
Aluminum
cation exchange capacity
chemical analysis
liming.
Alumínio
análise química
calagem
capacidade de troca catiônica.
title_short Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
title_full Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
title_fullStr Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
title_full_unstemmed Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
title_sort Estimation of potential acidity by the pH SMP method in soils of altitude from Santa Catarina
author Pereira, Marcos Gervasio
author_facet Pereira, Marcos Gervasio
Araújo, André Lucas Simões
Dortzbach, Denilson
Tavares, Orlando Carlos Huertas
Silva Neto, Eduardo Carvalho
author_role author
author2 Araújo, André Lucas Simões
Dortzbach, Denilson
Tavares, Orlando Carlos Huertas
Silva Neto, Eduardo Carvalho
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pereira, Marcos Gervasio
Araújo, André Lucas Simões
Dortzbach, Denilson
Tavares, Orlando Carlos Huertas
Silva Neto, Eduardo Carvalho
dc.subject.por.fl_str_mv Aluminum
cation exchange capacity
chemical analysis
liming.
Alumínio
análise química
calagem
capacidade de troca catiônica.
topic Aluminum
cation exchange capacity
chemical analysis
liming.
Alumínio
análise química
calagem
capacidade de troca catiônica.
description Correction of the pH of acid soils is critical to increase crop productivity and liming is one of the most common practices for this correction. In Rio Grande do Sul and Santa Catarina states, this recommendation is based on soil pH determination using the SMP buffer solution. This method has been used in these states due to its practicality and applicationfor liming calculation. However, this estimate must be regionalized due to the different physical, chemical and mineralogical characteristics of the soils. The objective of this study was to evaluate the relationship between pH SMP, H + Al content and soil chemical attributes, total organic carbon and chemical fractionation of organic matter. Forty-three samples of surface horizons of highland soils of Santa Catarina were used in this study. From the results, it can be verified that the SMP pH presents asignificant correlation with the H + Al content, as well as other chemical attributes of the soils. Thus it is possible to estimate the potential acidity through the exponential model 62,48e-0,41pHSMP and the values of H + Al can be estimated by this equationand the values of H + Al can be estimated by this equation.
publishDate 2020
dc.date.none.fl_str_mv 2020-05-01
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://publicacoes.epagri.sc.gov.br/rac/article/view/531
10.52945/rac.v33i1.531
url https://publicacoes.epagri.sc.gov.br/rac/article/view/531
identifier_str_mv 10.52945/rac.v33i1.531
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/531/706
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 33 No. 1 (2020); 50-55
Agropecuária Catarinense; v. 33 n. 1 (2020); 50-55
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
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