Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5433/1679-0359.2013v34n6Supl1p3397 http://hdl.handle.net/11449/113308 |
Resumo: | The lowest grain yield of rice under no-tillage system (NTS) in relation to the conventional system may be due to the predominance nitrate in the soil and the low nitrate reductase activity. Another reason may be caused by micronutrient deficiency because of superficially soil acidity corrections. Therefore, the objective of this study was to evaluate the changes caused by soil pH in the N forms in the soil, micronutrients concentration in rice plants, nitrate reductase activity, yield of rice and its components. The experiment was performed in a greenhouse conditions. The experimental design was a completely randomized in a factorial three (levels of soil acidity) x five (micronutrients sources) with four replications. The addition of micronutrients does not affect levels of nitrate and ammonium in the soil; soil acidity significantly affects levels of nitrate and ammonium in the soil, concentration of micronutrients in rice plants and crop yield and its components; medium soil acidity (pH 5.5) result in medium to high levels of Cu and Fe, medium level of Zn and Mn, high nitrate reductase activity, resulting in higher dry matter, tillers, panicles, spikelets, weight of 100 grains and hence grain yield. |
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Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altasSoil acidity as affecting micronutrients concentration, nitrato reductase enzyme activity and yield in upland rice plantsOryza sativasoil fertilitysoil acidityyieldno-tillage systemThe lowest grain yield of rice under no-tillage system (NTS) in relation to the conventional system may be due to the predominance nitrate in the soil and the low nitrate reductase activity. Another reason may be caused by micronutrient deficiency because of superficially soil acidity corrections. Therefore, the objective of this study was to evaluate the changes caused by soil pH in the N forms in the soil, micronutrients concentration in rice plants, nitrate reductase activity, yield of rice and its components. The experiment was performed in a greenhouse conditions. The experimental design was a completely randomized in a factorial three (levels of soil acidity) x five (micronutrients sources) with four replications. The addition of micronutrients does not affect levels of nitrate and ammonium in the soil; soil acidity significantly affects levels of nitrate and ammonium in the soil, concentration of micronutrients in rice plants and crop yield and its components; medium soil acidity (pH 5.5) result in medium to high levels of Cu and Fe, medium level of Zn and Mn, high nitrate reductase activity, resulting in higher dry matter, tillers, panicles, spikelets, weight of 100 grains and hence grain yield.Univ Oeste Paulista, UNOESTE, Fac Ciencias Agr, Presidente Prudente, SP, BrazilUniv Estadual Paulista, Dept Prod Vegetal, UNESP, FCA, Botucatu, SP, BrazilCtr Solos & Recursos Ambientais, IAC, Campinas, SP, BrazilEmbrapa Arroz & Feijao, Santo Antonio De Goias, Go, BrazilUNESP, Inst Biociencias, Dept Quim & Bioquim, Botucatu, SP, BrazilUniv Estadual Paulista, Dept Prod Vegetal, UNESP, FCA, Botucatu, SP, BrazilUNESP, Inst Biociencias, Dept Quim & Bioquim, Botucatu, SP, BrazilUniversidade Estadual de Londrina (UEL)Universidade do Oeste Paulista (UNOESTE)Universidade Estadual Paulista (Unesp)Ctr Solos & Recursos AmbientaisEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Moro, EdemarCosta Crusciol, Carlos Alexandre [UNESP]Cantarella, HeitorNascente, Adriano StephanMoro, Adriana LimaBroetto, Fernando [UNESP]2014-12-03T13:11:36Z2014-12-03T13:11:36Z2013-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article3397-3410application/pdfhttp://dx.doi.org/10.5433/1679-0359.2013v34n6Supl1p3397Semina-ciencias Agrarias. Londrina: Univ Estadual Londrina, v. 34, p. 3397-3410, 2013.1676-546Xhttp://hdl.handle.net/11449/11330810.5433/1679-0359.2013v34n6Supl1p3397WOS:000328276600024WOS000328276600024.pdf39640894778176630000-0002-8316-4144Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSemina: Ciências Agrárias0.349info:eu-repo/semantics/openAccess2024-04-30T15:57:40Zoai:repositorio.unesp.br:11449/113308Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:32:25.208607Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas Soil acidity as affecting micronutrients concentration, nitrato reductase enzyme activity and yield in upland rice plants |
title |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas |
spellingShingle |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas Moro, Edemar Oryza sativa soil fertility soil acidity yield no-tillage system |
title_short |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas |
title_full |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas |
title_fullStr |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas |
title_full_unstemmed |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas |
title_sort |
Acidez do solo afetando concentração de micronutrientes, atividade da enzima nitrato redutase e produtividade em plantas de arroz de terras altas |
author |
Moro, Edemar |
author_facet |
Moro, Edemar Costa Crusciol, Carlos Alexandre [UNESP] Cantarella, Heitor Nascente, Adriano Stephan Moro, Adriana Lima Broetto, Fernando [UNESP] |
author_role |
author |
author2 |
Costa Crusciol, Carlos Alexandre [UNESP] Cantarella, Heitor Nascente, Adriano Stephan Moro, Adriana Lima Broetto, Fernando [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Oeste Paulista (UNOESTE) Universidade Estadual Paulista (Unesp) Ctr Solos & Recursos Ambientais Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Moro, Edemar Costa Crusciol, Carlos Alexandre [UNESP] Cantarella, Heitor Nascente, Adriano Stephan Moro, Adriana Lima Broetto, Fernando [UNESP] |
dc.subject.por.fl_str_mv |
Oryza sativa soil fertility soil acidity yield no-tillage system |
topic |
Oryza sativa soil fertility soil acidity yield no-tillage system |
description |
The lowest grain yield of rice under no-tillage system (NTS) in relation to the conventional system may be due to the predominance nitrate in the soil and the low nitrate reductase activity. Another reason may be caused by micronutrient deficiency because of superficially soil acidity corrections. Therefore, the objective of this study was to evaluate the changes caused by soil pH in the N forms in the soil, micronutrients concentration in rice plants, nitrate reductase activity, yield of rice and its components. The experiment was performed in a greenhouse conditions. The experimental design was a completely randomized in a factorial three (levels of soil acidity) x five (micronutrients sources) with four replications. The addition of micronutrients does not affect levels of nitrate and ammonium in the soil; soil acidity significantly affects levels of nitrate and ammonium in the soil, concentration of micronutrients in rice plants and crop yield and its components; medium soil acidity (pH 5.5) result in medium to high levels of Cu and Fe, medium level of Zn and Mn, high nitrate reductase activity, resulting in higher dry matter, tillers, panicles, spikelets, weight of 100 grains and hence grain yield. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01 2014-12-03T13:11:36Z 2014-12-03T13:11:36Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.5433/1679-0359.2013v34n6Supl1p3397 Semina-ciencias Agrarias. Londrina: Univ Estadual Londrina, v. 34, p. 3397-3410, 2013. 1676-546X http://hdl.handle.net/11449/113308 10.5433/1679-0359.2013v34n6Supl1p3397 WOS:000328276600024 WOS000328276600024.pdf 3964089477817663 0000-0002-8316-4144 |
url |
http://dx.doi.org/10.5433/1679-0359.2013v34n6Supl1p3397 http://hdl.handle.net/11449/113308 |
identifier_str_mv |
Semina-ciencias Agrarias. Londrina: Univ Estadual Londrina, v. 34, p. 3397-3410, 2013. 1676-546X 10.5433/1679-0359.2013v34n6Supl1p3397 WOS:000328276600024 WOS000328276600024.pdf 3964089477817663 0000-0002-8316-4144 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Semina: Ciências Agrárias 0.349 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
3397-3410 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Londrina (UEL) |
publisher.none.fl_str_mv |
Universidade Estadual de Londrina (UEL) |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129082535182336 |