Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agropecuária Catarinense (Online) |
Texto Completo: | https://publicacoes.epagri.sc.gov.br/rac/article/view/335 |
Resumo: | The objective of this research was to evaluate Ca and Mg availability, base saturation (V%) and soil acidity parameters of rice fields in Santa Catarina (SC) to subsidize liming recommendations. The database was built with variables obtained from 2.464 soil samples analyzed during four agricultural crops cycles (2012-2015) in seven regions: Alto, Médio and Baixo Vale do Itajaí, Litoral Norte, Araranguá, Criciúma and Tubarão. The soil attributes were grouped in classes for interpretation according to limits established by current recommendation manuals. The soils of rice fields of SC are predominantly acidic. More than 50% of the soil samples from Criciúma, Médio and Baixo Vale do Itajaí regions, and 30-40% of those from Litoral Norte and Araranguá regions, indicated low levels of Ca. The diagnosis indicated the necessity of soil acidity correction for the most soil analyzes, if the farmers’ option is to sow the irrigated rice under dry soil conditions. For the pre-germinated system, most of the fields in the Tubarão, Araranguá, Alto Vale and Litoral Norte regions would require less than 200 kg ha-1 of effective dolomitic limestone to supply Ca and Mg. |
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Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina StateTeor de cálcio e magnésio e parâmetros de acidez do solo em lavouras arrozeiras de Santa Catarinalimingbase saturatonph in water saturatonirrigated rice.CalagemSaturação por basespH em águaArroz irrigadoThe objective of this research was to evaluate Ca and Mg availability, base saturation (V%) and soil acidity parameters of rice fields in Santa Catarina (SC) to subsidize liming recommendations. The database was built with variables obtained from 2.464 soil samples analyzed during four agricultural crops cycles (2012-2015) in seven regions: Alto, Médio and Baixo Vale do Itajaí, Litoral Norte, Araranguá, Criciúma and Tubarão. The soil attributes were grouped in classes for interpretation according to limits established by current recommendation manuals. The soils of rice fields of SC are predominantly acidic. More than 50% of the soil samples from Criciúma, Médio and Baixo Vale do Itajaí regions, and 30-40% of those from Litoral Norte and Araranguá regions, indicated low levels of Ca. The diagnosis indicated the necessity of soil acidity correction for the most soil analyzes, if the farmers’ option is to sow the irrigated rice under dry soil conditions. For the pre-germinated system, most of the fields in the Tubarão, Araranguá, Alto Vale and Litoral Norte regions would require less than 200 kg ha-1 of effective dolomitic limestone to supply Ca and Mg.O objetivo deste trabalho foi avaliar a disponibilidade de Ca e Mg, a saturação por bases (V%) e os parâmetros de acidez do solo em lavouras arrozeiras de Santa Catarina para subsidiar as recomendações de calagem. As variáveis para o banco de dados foram resgatadas de 2.464 análises de solo de quatro safras agrícolas (2012-2015), oriundas de lavouras localizadas em sete regiões orizícolas: Alto, Médio e Baixo Vale do Itajaí, Litoral Norte, Araranguá, Criciúma e Tubarão. Os atributos do solo foram enquadrados em faixas de interpretação (classes) estabelecidas em manuais. Os solos das lavouras arrozeiras de SC são predominantemente ácidos. Nas regiões de Criciúma, do Baixo e do Médio Vale do Itajaí mais de 50% das análises indicaram teores baixos de Ca. Nas regiões de Araranguá e Litoral Norte, de 30% a 40% delas apresentaram resultados similares. Para o sistema pré-germinado, a maioria das lavouras das regiões de Tubarão, Araranguá, Alto Vale e Litoral Norte necessitariam de quantidades inferiores a 200 kg ha-1 de calcário dolomítico PRNT 100% aplicados como fonte de Ca e Mg. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2019-01-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/33510.22491/RAC.2019.v32n1.11Agropecuária Catarinense Journal; Vol. 32 No. 1 (2019); 80-85Agropecuária Catarinense; v. 32 n. 1 (2019); 80-852525-60760103-0779reponame: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/335/356Copyright (c) 2019 Revista Agropecuária Catarinenseinfo:eu-repo/semantics/openAccessSchmidt, Fabiana2019-09-09T21:31:19Zoai:ojs.publicacoes.epagri.sc.gov.br:article/335Revistahttps://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:2019-09-09T21:31:19Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false |
dc.title.none.fl_str_mv |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State Teor de cálcio e magnésio e parâmetros de acidez do solo em lavouras arrozeiras de Santa Catarina |
title |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State |
spellingShingle |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State Schmidt, Fabiana liming base saturaton ph in water saturaton irrigated rice. Calagem Saturação por bases pH em água Arroz irrigado |
title_short |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State |
title_full |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State |
title_fullStr |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State |
title_full_unstemmed |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State |
title_sort |
Calcium and magnesium content and soil acidity parameters in rice felds of Santa catarina State |
author |
Schmidt, Fabiana |
author_facet |
Schmidt, Fabiana |
author_role |
author |
dc.contributor.author.fl_str_mv |
Schmidt, Fabiana |
dc.subject.por.fl_str_mv |
liming base saturaton ph in water saturaton irrigated rice. Calagem Saturação por bases pH em água Arroz irrigado |
topic |
liming base saturaton ph in water saturaton irrigated rice. Calagem Saturação por bases pH em água Arroz irrigado |
description |
The objective of this research was to evaluate Ca and Mg availability, base saturation (V%) and soil acidity parameters of rice fields in Santa Catarina (SC) to subsidize liming recommendations. The database was built with variables obtained from 2.464 soil samples analyzed during four agricultural crops cycles (2012-2015) in seven regions: Alto, Médio and Baixo Vale do Itajaí, Litoral Norte, Araranguá, Criciúma and Tubarão. The soil attributes were grouped in classes for interpretation according to limits established by current recommendation manuals. The soils of rice fields of SC are predominantly acidic. More than 50% of the soil samples from Criciúma, Médio and Baixo Vale do Itajaí regions, and 30-40% of those from Litoral Norte and Araranguá regions, indicated low levels of Ca. The diagnosis indicated the necessity of soil acidity correction for the most soil analyzes, if the farmers’ option is to sow the irrigated rice under dry soil conditions. For the pre-germinated system, most of the fields in the Tubarão, Araranguá, Alto Vale and Litoral Norte regions would require less than 200 kg ha-1 of effective dolomitic limestone to supply Ca and Mg. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-22 |
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/335 10.22491/RAC.2019.v32n1.11 |
url |
https://publicacoes.epagri.sc.gov.br/rac/article/view/335 |
identifier_str_mv |
10.22491/RAC.2019.v32n1.11 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://publicacoes.epagri.sc.gov.br/rac/article/view/335/356 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Revista Agropecuária Catarinense info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Revista Agropecuária Catarinense |
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. 32 No. 1 (2019); 80-85 Agropecuária Catarinense; v. 32 n. 1 (2019); 80-85 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 |
_version_ |
1754917258632626176 |