Adubação nitrogenada do feijoeiro, em plantio e cobertura, em plantio direto e convencional
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
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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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) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835224034246656 |