Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/00103624.2017.1416137 http://hdl.handle.net/11449/175668 |
Resumo: | The average yield of upland rice under no-tillage system (NTS), a sustainable soil management, is lower than in conventional tillage (one plowing and two disking). One of the reasons given for this drop in crop grain yield would be the low-nitrate assimilation capacity of rice seedlings, due to the low activity of the nitrate reductase (NR) enzyme in the early development phase. A greenhouse experiment was conducted to evaluate the effects of the soil acidic and nitrogen source in the micronutrient concentrations, NR activity and grain yield of upland rice growing under NTS. The soil used in the experiment was an Oxisol. The experimental design was completely randomized in a factorial 3 × 4. Treatments consisted of three levels of soil acidity (high, medium, and low) combined with four nitrogen sources (nitrate, ammonium, ammonium + nitrification inhibitor, and control–without N fertilization). The reduction of soil acidity reduced the concentration of zinc and manganese in rice plants. Generally, the activity of the NR enzyme was higher in plants grown in soils with low acidity and fertilized with calcium nitrate. There was a greater response in growth and yield in rice plants grown in soils with high acidity. Under medium acidity, rice plants grown with ammonium sulfate were more productive (no differences were detected with the addition of the nitrification inhibitor). |
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Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen SourcesAmmoniumnitrateOryza sativasoil aciditysoil fertilityyieldThe average yield of upland rice under no-tillage system (NTS), a sustainable soil management, is lower than in conventional tillage (one plowing and two disking). One of the reasons given for this drop in crop grain yield would be the low-nitrate assimilation capacity of rice seedlings, due to the low activity of the nitrate reductase (NR) enzyme in the early development phase. A greenhouse experiment was conducted to evaluate the effects of the soil acidic and nitrogen source in the micronutrient concentrations, NR activity and grain yield of upland rice growing under NTS. The soil used in the experiment was an Oxisol. The experimental design was completely randomized in a factorial 3 × 4. Treatments consisted of three levels of soil acidity (high, medium, and low) combined with four nitrogen sources (nitrate, ammonium, ammonium + nitrification inhibitor, and control–without N fertilization). The reduction of soil acidity reduced the concentration of zinc and manganese in rice plants. Generally, the activity of the NR enzyme was higher in plants grown in soils with low acidity and fertilized with calcium nitrate. There was a greater response in growth and yield in rice plants grown in soils with high acidity. Under medium acidity, rice plants grown with ammonium sulfate were more productive (no differences were detected with the addition of the nitrification inhibitor).Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Agronomia Universidade do Oeste Paulista–UNOESTE Campus IIFaculdade de Ciências Agronômicas Departamento de Produção Vegetal (Agricultura) Universidade Estadual Paulista (UNESP)Empresa Brasileira de Pesquisa Agropecuária (Embrapa Arroz e Feijão)Centro de Solos e Recursos Ambientais Instituto Agronômico de CampinasDepartamento de Química e Bioquímica Universidade Estadual Paulista (UNESP) Instituto de BiociênciasFaculdade de Ciências Agronômicas Departamento de Produção Vegetal (Agricultura) Universidade Estadual Paulista (UNESP)Departamento de Química e Bioquímica Universidade Estadual Paulista (UNESP) Instituto de BiociênciasFAPESP: 2008/05573-0FAPESP: 2008/05641-6Universidade do Oeste Paulista–UNOESTEUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Instituto Agronômico de CampinasMoro, EdemarCrusciol, Carlos Alexandre Costa [UNESP]Nascente, Adriano StephanCantarella, HeitorBroetto, Fernando [UNESP]Moro, Adriana Lima2018-12-11T17:17:00Z2018-12-11T17:17:00Z2017-12-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2642-2651application/pdfhttp://dx.doi.org/10.1080/00103624.2017.1416137Communications in Soil Science and Plant Analysis, v. 48, n. 22, p. 2642-2651, 2017.1532-24160010-3624http://hdl.handle.net/11449/17566810.1080/00103624.2017.14161372-s2.0-850386307742-s2.0-85038630774.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCommunications in Soil Science and Plant Analysis0,3410,341info:eu-repo/semantics/openAccess2024-04-30T15:56:02Zoai:repositorio.unesp.br:11449/175668Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T15:56:02Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
title |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
spellingShingle |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources Moro, Edemar Ammonium nitrate Oryza sativa soil acidity soil fertility yield |
title_short |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
title_full |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
title_fullStr |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
title_full_unstemmed |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
title_sort |
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources |
author |
Moro, Edemar |
author_facet |
Moro, Edemar Crusciol, Carlos Alexandre Costa [UNESP] Nascente, Adriano Stephan Cantarella, Heitor Broetto, Fernando [UNESP] Moro, Adriana Lima |
author_role |
author |
author2 |
Crusciol, Carlos Alexandre Costa [UNESP] Nascente, Adriano Stephan Cantarella, Heitor Broetto, Fernando [UNESP] Moro, Adriana Lima |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Oeste Paulista–UNOESTE Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Instituto Agronômico de Campinas |
dc.contributor.author.fl_str_mv |
Moro, Edemar Crusciol, Carlos Alexandre Costa [UNESP] Nascente, Adriano Stephan Cantarella, Heitor Broetto, Fernando [UNESP] Moro, Adriana Lima |
dc.subject.por.fl_str_mv |
Ammonium nitrate Oryza sativa soil acidity soil fertility yield |
topic |
Ammonium nitrate Oryza sativa soil acidity soil fertility yield |
description |
The average yield of upland rice under no-tillage system (NTS), a sustainable soil management, is lower than in conventional tillage (one plowing and two disking). One of the reasons given for this drop in crop grain yield would be the low-nitrate assimilation capacity of rice seedlings, due to the low activity of the nitrate reductase (NR) enzyme in the early development phase. A greenhouse experiment was conducted to evaluate the effects of the soil acidic and nitrogen source in the micronutrient concentrations, NR activity and grain yield of upland rice growing under NTS. The soil used in the experiment was an Oxisol. The experimental design was completely randomized in a factorial 3 × 4. Treatments consisted of three levels of soil acidity (high, medium, and low) combined with four nitrogen sources (nitrate, ammonium, ammonium + nitrification inhibitor, and control–without N fertilization). The reduction of soil acidity reduced the concentration of zinc and manganese in rice plants. Generally, the activity of the NR enzyme was higher in plants grown in soils with low acidity and fertilized with calcium nitrate. There was a greater response in growth and yield in rice plants grown in soils with high acidity. Under medium acidity, rice plants grown with ammonium sulfate were more productive (no differences were detected with the addition of the nitrification inhibitor). |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-16 2018-12-11T17:17:00Z 2018-12-11T17:17:00Z |
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/10.1080/00103624.2017.1416137 Communications in Soil Science and Plant Analysis, v. 48, n. 22, p. 2642-2651, 2017. 1532-2416 0010-3624 http://hdl.handle.net/11449/175668 10.1080/00103624.2017.1416137 2-s2.0-85038630774 2-s2.0-85038630774.pdf |
url |
http://dx.doi.org/10.1080/00103624.2017.1416137 http://hdl.handle.net/11449/175668 |
identifier_str_mv |
Communications in Soil Science and Plant Analysis, v. 48, n. 22, p. 2642-2651, 2017. 1532-2416 0010-3624 10.1080/00103624.2017.1416137 2-s2.0-85038630774 2-s2.0-85038630774.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Communications in Soil Science and Plant Analysis 0,341 0,341 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2642-2651 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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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1799964791632035840 |