Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments

Detalhes bibliográficos
Autor(a) principal: Simão, Eduardo de Paula
Data de Publicação: 2020
Outros Autores: Resende, Álvaro Vilela de, Gontijo Neto, Miguel Marques, Silva, Alexandre Ferreira da, Godinho, Vicente de Paulo Campos, Galvão, José Carlos Cardoso, Borghi, Emerson, Oliveira, Antônio Carlos de, Giehl, Jeferson
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/26854
Resumo: The objective of this work was to assess the grain yield and the economic response of off-season corn (Zea mays) crop subjected to different combinations of starter and topdressing nitrogen fertilization, in the Brazilian Cerrado region. The experiment was carried out in a randomized complete block design in a 3×4 factorial arrangement (0, 45, and 90 kg ha-1 N at sowing and 0, 22.5, 45, and 90 kg ha-1 N in topdressing as urea), in six environments, combining three sites and two sowing times. Grain yield was determined, and the response to total N applied as starter and topdressing was used to obtain a general model of the average trend of the technical and economic return of fertilization. The corn crop response varied according to the environment, and the observed yields were high. The application of N as a starter fertilizer increased corn yield and improved the effect of topdressing fertilization or even made it unnecessary. Fertilization with 90 kg ha-1 N as urea promotes greater yield and economic return and improves N balance in the soybean/off-season corn crop system.
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spelling Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environmentsAdubação nitrogenada no milho safrinha em diferentes ambientes no Cerrado brasileiroZea mays; efficient N use; N requirement; second corn crop; soybean-corn successionZea mays; uso eficiente de N; requerimento de N; milho segunda safra; sucessão soja-milhoThe objective of this work was to assess the grain yield and the economic response of off-season corn (Zea mays) crop subjected to different combinations of starter and topdressing nitrogen fertilization, in the Brazilian Cerrado region. The experiment was carried out in a randomized complete block design in a 3×4 factorial arrangement (0, 45, and 90 kg ha-1 N at sowing and 0, 22.5, 45, and 90 kg ha-1 N in topdressing as urea), in six environments, combining three sites and two sowing times. Grain yield was determined, and the response to total N applied as starter and topdressing was used to obtain a general model of the average trend of the technical and economic return of fertilization. The corn crop response varied according to the environment, and the observed yields were high. The application of N as a starter fertilizer increased corn yield and improved the effect of topdressing fertilization or even made it unnecessary. Fertilization with 90 kg ha-1 N as urea promotes greater yield and economic return and improves N balance in the soybean/off-season corn crop system.O objetivo deste trabalho foi avaliar a produtividade de grãos e a resposta econômica de milho (Zea mays) segunda safra submetido a diferentes combinações de adubações de N em semeadura e cobertura, na região do Cerrado brasileiro. O experimento foi conduzido em delineamento de blocos ao acaso, em arranjo fatorial 3×4 (0, 45 e 90 kg ha-1 de N na semeadura e 0, 22,5, 45 e 90 kg ha-1 de N em cobertura na forma de ureia), em seis ambientes, tendo-se combinado três locais e duas épocas de semeadura. A produtividade de grãos foi determinada, e a resposta às doses totais de N na semeadura e em cobertura foi usada para obter um modelo geral da tendência média de retorno técnico e econômico da adubação. A resposta da cultura de milho variou de acordo com o ambiente, e as produtividades observadas foram altas. A adubação nitrogenada na semeadura aumentou a produtividade do milho e melhorou o efeito da adubação em cobertura ou até a dispensou. A fertilização com 90 kg ha-1 de N na forma de ureia proporciona maior produtividade e retorno econômico e melhora o balanço deste nutriente no sistema soja/milho segunda safra.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Simão, Eduardo de PaulaResende, Álvaro Vilela deGontijo Neto, Miguel MarquesSilva, Alexandre Ferreira daGodinho, Vicente de Paulo CamposGalvão, José Carlos CardosoBorghi, EmersonOliveira, Antônio Carlos deGiehl, Jeferson2020-12-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/26854Pesquisa Agropecuaria Brasileira; V.55, Jan./Dec., 2020: Publicação contínua em volume anual; e01551Pesquisa Agropecuária Brasileira; V.55, Jan./Dec., 2020: Publicação contínua em volume anual; e015511678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/26854/14827Direitos autorais 2020 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2022-05-18T18:26:38Zoai:ojs.seer.sct.embrapa.br:article/26854Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2022-05-18T18:26:38Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
Adubação nitrogenada no milho safrinha em diferentes ambientes no Cerrado brasileiro
title Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
spellingShingle Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
Simão, Eduardo de Paula
Zea mays; efficient N use; N requirement; second corn crop; soybean-corn succession
Zea mays; uso eficiente de N; requerimento de N; milho segunda safra; sucessão soja-milho
title_short Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
title_full Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
title_fullStr Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
title_full_unstemmed Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
title_sort Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments
author Simão, Eduardo de Paula
author_facet Simão, Eduardo de Paula
Resende, Álvaro Vilela de
Gontijo Neto, Miguel Marques
Silva, Alexandre Ferreira da
Godinho, Vicente de Paulo Campos
Galvão, José Carlos Cardoso
Borghi, Emerson
Oliveira, Antônio Carlos de
Giehl, Jeferson
author_role author
author2 Resende, Álvaro Vilela de
Gontijo Neto, Miguel Marques
Silva, Alexandre Ferreira da
Godinho, Vicente de Paulo Campos
Galvão, José Carlos Cardoso
Borghi, Emerson
Oliveira, Antônio Carlos de
Giehl, Jeferson
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.contributor.author.fl_str_mv Simão, Eduardo de Paula
Resende, Álvaro Vilela de
Gontijo Neto, Miguel Marques
Silva, Alexandre Ferreira da
Godinho, Vicente de Paulo Campos
Galvão, José Carlos Cardoso
Borghi, Emerson
Oliveira, Antônio Carlos de
Giehl, Jeferson
dc.subject.por.fl_str_mv Zea mays; efficient N use; N requirement; second corn crop; soybean-corn succession
Zea mays; uso eficiente de N; requerimento de N; milho segunda safra; sucessão soja-milho
topic Zea mays; efficient N use; N requirement; second corn crop; soybean-corn succession
Zea mays; uso eficiente de N; requerimento de N; milho segunda safra; sucessão soja-milho
description The objective of this work was to assess the grain yield and the economic response of off-season corn (Zea mays) crop subjected to different combinations of starter and topdressing nitrogen fertilization, in the Brazilian Cerrado region. The experiment was carried out in a randomized complete block design in a 3×4 factorial arrangement (0, 45, and 90 kg ha-1 N at sowing and 0, 22.5, 45, and 90 kg ha-1 N in topdressing as urea), in six environments, combining three sites and two sowing times. Grain yield was determined, and the response to total N applied as starter and topdressing was used to obtain a general model of the average trend of the technical and economic return of fertilization. The corn crop response varied according to the environment, and the observed yields were high. The application of N as a starter fertilizer increased corn yield and improved the effect of topdressing fertilization or even made it unnecessary. Fertilization with 90 kg ha-1 N as urea promotes greater yield and economic return and improves N balance in the soybean/off-season corn crop system.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-28
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/26854
url https://seer.sct.embrapa.br/index.php/pab/article/view/26854
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/26854/14827
dc.rights.driver.fl_str_mv Direitos autorais 2020 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2020 Pesquisa Agropecuária Brasileira
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; V.55, Jan./Dec., 2020: Publicação contínua em volume anual; e01551
Pesquisa Agropecuária Brasileira; V.55, Jan./Dec., 2020: Publicação contínua em volume anual; e01551
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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