Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional

Detalhes bibliográficos
Autor(a) principal: Alves Junior, Jainir
Data de Publicação: 2009
Outros Autores: Andrade, Messias José Bastos de, Carvalho, Janice Guedes de, Vieira, Neiva Maria Batista, Morais, Augusto Ramalho de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000400001
http://repositorio.ufla.br/jspui/handle/1/6983
Resumo: With the aim of evaluating the responses of bean to nitrogen fertilization rates at sowing and topdressing in the field, two experiments were carried out (no-tillage and conventional tillage), in the rainy season 2004/2005. The experimental design was in randomized blocks with three replicates in a 4x4 factorial structure encompassing four N rates at sowing (0, 40, 80, and 120 kg.ha-1) and four topdressing N rates (0, 40, 80, and 120 kg.ha-1) at 20 DAE. Each plot was composed of four 5-m-long rows, 0.5 m apart from each other and a 16 seed.m-1 density was used. Initial and final stand and grain yield were assessed. In both crop management systems, the increasing nitrogen fertilization rate at sowing reduced the plant stand. In general, in no-tillage the response to N application at sowing was squared and the rate corresponding to maximum yield varied depending on the topdressing rates. In conventional tillage this response decreased linearly, as a function of the higher effect of N at sowing on final stand. The response to N topdressing application was squared in both crop management systems and higher responses to grain yield were observed with 40 kg.ha-1 N rate at sowing.
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spelling Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencionalNitrogen fertilization of bean at sowing and as topdressing under no-tillage and conventional tillageNitrogênioPhaseolus vulgarisSistemas de plantioNitrogenCrop management systemsWith the aim of evaluating the responses of bean to nitrogen fertilization rates at sowing and topdressing in the field, two experiments were carried out (no-tillage and conventional tillage), in the rainy season 2004/2005. The experimental design was in randomized blocks with three replicates in a 4x4 factorial structure encompassing four N rates at sowing (0, 40, 80, and 120 kg.ha-1) and four topdressing N rates (0, 40, 80, and 120 kg.ha-1) at 20 DAE. Each plot was composed of four 5-m-long rows, 0.5 m apart from each other and a 16 seed.m-1 density was used. Initial and final stand and grain yield were assessed. In both crop management systems, the increasing nitrogen fertilization rate at sowing reduced the plant stand. In general, in no-tillage the response to N application at sowing was squared and the rate corresponding to maximum yield varied depending on the topdressing rates. In conventional tillage this response decreased linearly, as a function of the higher effect of N at sowing on final stand. The response to N topdressing application was squared in both crop management systems and higher responses to grain yield were observed with 40 kg.ha-1 N rate at sowing.Com o objetivo de avaliar, a campo, a resposta do feijoeiro a doses de nitrogênio por ocasião da semeadura e em cobertura, foram conduzidos dois experimentos (plantio direto e convencional), na safra das águas 2004/05. O delineamento estatístico foi em blocos casualizados com três repetições e esquema fatorial 4x4, envolvendo 4 doses de N no plantio (0, 40, 80 e 120 kg.ha-1) e 4 doses de N em cobertura (0, 40, 80 e 120 kg.ha-1), aos 20 DAE. Cada parcela foi constituída por quatro linhas de 5 m de comprimento, espaçamento de 0,5 m e densidade de 16 sementes.m-1. Foram avaliados os estandes inicial e final e o rendimento de grãos. Em ambos os sistemas de plantio, o incremento do fertilizante nitrogenado de plantio reduziu o estande de plantas. De maneira geral, no plantio direto, a resposta à aplicação de N no plantio foi quadrática e a dose correspondente à máxima produtividade variou com as doses de cobertura. No plantio convencional, essa resposta foi linear decrescente, em razão do maior efeito de N de plantio sobre o estande. A resposta à aplicação de N em cobertura foi quadrática, em ambos os sistemas de plantio e as maiores respostas do rendimento de grãos foram observadas com o emprego da dose de 40 kg.ha-1 de N no plantio.Editora da Universidade Federal de Lavras2009-08-012015-04-30T13:35:17Z2015-04-30T13:35:17Z2015-04-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000400001ALVES JUNIOR, J. et al. Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional. Ciência e Agrotecnologia, Lavras, v. 33, n. 4, p. 943-949, jul./ ago. 2009.http://repositorio.ufla.br/jspui/handle/1/6983Ciência e Agrotecnologia v.33 n.4 2009reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAlves Junior, JainirAndrade, Messias José Bastos deCarvalho, Janice Guedes deVieira, Neiva Maria BatistaMorais, Augusto Ramalho deporinfo:eu-repo/semantics/openAccess2016-03-15T19:39:40Zoai:localhost:1/6983Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2016-03-15T19:39:40Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
Nitrogen fertilization of bean at sowing and as topdressing under no-tillage and conventional tillage
title Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
spellingShingle Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
Alves Junior, Jainir
Nitrogênio
Phaseolus vulgaris
Sistemas de plantio
Nitrogen
Crop management systems
title_short Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
title_full Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
title_fullStr Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
title_full_unstemmed Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
title_sort Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
author Alves Junior, Jainir
author_facet Alves Junior, Jainir
Andrade, Messias José Bastos de
Carvalho, Janice Guedes de
Vieira, Neiva Maria Batista
Morais, Augusto Ramalho de
author_role author
author2 Andrade, Messias José Bastos de
Carvalho, Janice Guedes de
Vieira, Neiva Maria Batista
Morais, Augusto Ramalho de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Alves Junior, Jainir
Andrade, Messias José Bastos de
Carvalho, Janice Guedes de
Vieira, Neiva Maria Batista
Morais, Augusto Ramalho de
dc.subject.por.fl_str_mv Nitrogênio
Phaseolus vulgaris
Sistemas de plantio
Nitrogen
Crop management systems
topic Nitrogênio
Phaseolus vulgaris
Sistemas de plantio
Nitrogen
Crop management systems
description With the aim of evaluating the responses of bean to nitrogen fertilization rates at sowing and topdressing in the field, two experiments were carried out (no-tillage and conventional tillage), in the rainy season 2004/2005. The experimental design was in randomized blocks with three replicates in a 4x4 factorial structure encompassing four N rates at sowing (0, 40, 80, and 120 kg.ha-1) and four topdressing N rates (0, 40, 80, and 120 kg.ha-1) at 20 DAE. Each plot was composed of four 5-m-long rows, 0.5 m apart from each other and a 16 seed.m-1 density was used. Initial and final stand and grain yield were assessed. In both crop management systems, the increasing nitrogen fertilization rate at sowing reduced the plant stand. In general, in no-tillage the response to N application at sowing was squared and the rate corresponding to maximum yield varied depending on the topdressing rates. In conventional tillage this response decreased linearly, as a function of the higher effect of N at sowing on final stand. The response to N topdressing application was squared in both crop management systems and higher responses to grain yield were observed with 40 kg.ha-1 N rate at sowing.
publishDate 2009
dc.date.none.fl_str_mv 2009-08-01
2015-04-30T13:35:17Z
2015-04-30T13:35:17Z
2015-04-30
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000400001
ALVES JUNIOR, J. et al. Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional. Ciência e Agrotecnologia, Lavras, v. 33, n. 4, p. 943-949, jul./ ago. 2009.
http://repositorio.ufla.br/jspui/handle/1/6983
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000400001
http://repositorio.ufla.br/jspui/handle/1/6983
identifier_str_mv ALVES JUNIOR, J. et al. Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional. Ciência e Agrotecnologia, Lavras, v. 33, n. 4, p. 943-949, jul./ ago. 2009.
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Editora da Universidade Federal de Lavras
publisher.none.fl_str_mv Editora da Universidade Federal de Lavras
dc.source.none.fl_str_mv Ciência e Agrotecnologia v.33 n.4 2009
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
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