Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1806-66902011000100004 http://hdl.handle.net/11449/3754 |
Resumo: | In maize (Zea mays L.), the inadequate nitrogen supply and planting density are considered limiting factors to the grain yield. The objective of this study was to evaluate the influence of different nitrogen levels and plant densities to the maize yield components and productivity. The experiment was carried out in the Cerrado region, located in the southern of the Maranhao State, Brazil, in a clay Oxisol (Ustox), cropped under the no-tillage system for six years. The randomized completed blocks experimental design with four replications was used, with treatments arrangement in a 5 x 4 factorial. The treatments were a combination of five doses of nitrogen as urea (0, 50, 100, 150 and 200 kg ha(-1)) and four plant densities (25,000; 50,000; 75,000 and 100,000 plants he). The grain number and mass per spike and grain mass per plant were improved by increased N and decreased plant density. Higher incomes of grains were obtained with adding concomitantly in N doses and in plants density. The maximum grain yield (11,9 Mg ha(-1)) was obtained with 120 kg ha(-1) of N and 83,000 plants ha(-1). |
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Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio diretoNitrogen fertilization, plant density and maize yield cropped under no-tillage systemCornPlant-Nitrogen effectNo-tillageIn maize (Zea mays L.), the inadequate nitrogen supply and planting density are considered limiting factors to the grain yield. The objective of this study was to evaluate the influence of different nitrogen levels and plant densities to the maize yield components and productivity. The experiment was carried out in the Cerrado region, located in the southern of the Maranhao State, Brazil, in a clay Oxisol (Ustox), cropped under the no-tillage system for six years. The randomized completed blocks experimental design with four replications was used, with treatments arrangement in a 5 x 4 factorial. The treatments were a combination of five doses of nitrogen as urea (0, 50, 100, 150 and 200 kg ha(-1)) and four plant densities (25,000; 50,000; 75,000 and 100,000 plants he). The grain number and mass per spike and grain mass per plant were improved by increased N and decreased plant density. Higher incomes of grains were obtained with adding concomitantly in N doses and in plants density. The maximum grain yield (11,9 Mg ha(-1)) was obtained with 120 kg ha(-1) of N and 83,000 plants ha(-1).Pesquisador Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Meio Norte, BR-64006220 Teresina, PI, BrazilUNESP, Dept Solos, BR-14884900 Jaboticabal, SP, BrazilUNESP, Dept Solos, BR-14884900 Jaboticabal, SP, BrazilUniv Federal Ceara, Dept GeolEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Universidade Estadual Paulista (Unesp)de Brito Melo, FranciscoCora, Jose Eduardo [UNESP]Cardoso, Milton Jose2014-05-20T13:17:12Z2014-05-20T13:17:12Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article29-33application/pdfhttp://dx.doi.org/10.1590/S1806-66902011000100004Revista Ciência Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 42, n. 1, p. 29-33, 2011.0045-6888http://hdl.handle.net/11449/3754S1806-66902011000100004WOS:000289828300004S1806-66902011000100004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Ciência Agronômicainfo:eu-repo/semantics/openAccess2023-12-30T06:14:20Zoai:repositorio.unesp.br:11449/3754Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-30T06:14:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto Nitrogen fertilization, plant density and maize yield cropped under no-tillage system |
title |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto |
spellingShingle |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto de Brito Melo, Francisco Corn Plant-Nitrogen effect No-tillage |
title_short |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto |
title_full |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto |
title_fullStr |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto |
title_full_unstemmed |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto |
title_sort |
Fertilização nitrogenada, densidade de plantas e rendimento de milho cultivado no sistema plantio direto |
author |
de Brito Melo, Francisco |
author_facet |
de Brito Melo, Francisco Cora, Jose Eduardo [UNESP] Cardoso, Milton Jose |
author_role |
author |
author2 |
Cora, Jose Eduardo [UNESP] Cardoso, Milton Jose |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Brito Melo, Francisco Cora, Jose Eduardo [UNESP] Cardoso, Milton Jose |
dc.subject.por.fl_str_mv |
Corn Plant-Nitrogen effect No-tillage |
topic |
Corn Plant-Nitrogen effect No-tillage |
description |
In maize (Zea mays L.), the inadequate nitrogen supply and planting density are considered limiting factors to the grain yield. The objective of this study was to evaluate the influence of different nitrogen levels and plant densities to the maize yield components and productivity. The experiment was carried out in the Cerrado region, located in the southern of the Maranhao State, Brazil, in a clay Oxisol (Ustox), cropped under the no-tillage system for six years. The randomized completed blocks experimental design with four replications was used, with treatments arrangement in a 5 x 4 factorial. The treatments were a combination of five doses of nitrogen as urea (0, 50, 100, 150 and 200 kg ha(-1)) and four plant densities (25,000; 50,000; 75,000 and 100,000 plants he). The grain number and mass per spike and grain mass per plant were improved by increased N and decreased plant density. Higher incomes of grains were obtained with adding concomitantly in N doses and in plants density. The maximum grain yield (11,9 Mg ha(-1)) was obtained with 120 kg ha(-1) of N and 83,000 plants ha(-1). |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2014-05-20T13:17:12Z 2014-05-20T13:17:12Z |
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/10.1590/S1806-66902011000100004 Revista Ciência Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 42, n. 1, p. 29-33, 2011. 0045-6888 http://hdl.handle.net/11449/3754 S1806-66902011000100004 WOS:000289828300004 S1806-66902011000100004.pdf |
url |
http://dx.doi.org/10.1590/S1806-66902011000100004 http://hdl.handle.net/11449/3754 |
identifier_str_mv |
Revista Ciência Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 42, n. 1, p. 29-33, 2011. 0045-6888 S1806-66902011000100004 WOS:000289828300004 S1806-66902011000100004.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Ciência Agronômica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
29-33 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Ceara, Dept Geol |
publisher.none.fl_str_mv |
Univ Federal Ceara, Dept Geol |
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 |
|
_version_ |
1799965451249254400 |