Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil

Detalhes bibliográficos
Autor(a) principal: Silva, Edson Cabral da
Data de Publicação: 2006
Outros Autores: Muraoka, Takashi, Buzetti, Salatiér, Trivelin, Paulo César Ocheuze
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7162
Resumo: The objective of this work was to evaluate the best rate and time for N application, and N utilization using urea-15N, by corn crop grown under no-tillage system, in succession to sun hemp (Crotalaria juncea L.), millet (Pennisetum americanum) and to the spontaneous vegetation (fallow ground), in a Rhodic Hapludox soil in Cerrrado. The experimental design was randomized complete blocks, with 24 treatments and four replications, in an incomplete factorial 3x3x2 + 6: three N rates (80, 130 and 180 kg ha-1 N); three preceding cover crops (sun hemp, millet and fallow ground); two N application time (four leaves or eight leaves stage); and six additional treatments (three without N application and three that received 30 kg ha-1 N at seeding). The corn grown in succession to sun hemp provided higher amount of N derived from fertilizer, N utilization efficiency and grain yield. Application of N to corn four leaves stage provides higher grain yield, compared to the application to eight leaves stage, in succession to millet.
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spelling Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soilManejo de nitrogênio no milho sob plantio direto com diferentes plantas de cobertura, em Latossolo VermelhoZea mays; fertilizer 15N; fallow; green manure; Cerrado; no-tillageZea mays; fertilizante 15N; pousio; adubo verde; Cerrado; plantio diretoThe objective of this work was to evaluate the best rate and time for N application, and N utilization using urea-15N, by corn crop grown under no-tillage system, in succession to sun hemp (Crotalaria juncea L.), millet (Pennisetum americanum) and to the spontaneous vegetation (fallow ground), in a Rhodic Hapludox soil in Cerrrado. The experimental design was randomized complete blocks, with 24 treatments and four replications, in an incomplete factorial 3x3x2 + 6: three N rates (80, 130 and 180 kg ha-1 N); three preceding cover crops (sun hemp, millet and fallow ground); two N application time (four leaves or eight leaves stage); and six additional treatments (three without N application and three that received 30 kg ha-1 N at seeding). The corn grown in succession to sun hemp provided higher amount of N derived from fertilizer, N utilization efficiency and grain yield. Application of N to corn four leaves stage provides higher grain yield, compared to the application to eight leaves stage, in succession to millet. O objetivo deste trabalho foi definir a melhor dose e época de aplicação, e a eficiência de utilização do N, utilizando-se uréia marcada com 15N, pelo milho cultivado sob plantio direto, em sucessão à crotalária (Crotalaria juncea), ao milheto (Pennisetum americanum) e à vegetação espontânea (pousio), em um Latossolo Vermelho no Cerrado. O delineamento experimental foi o de blocos ao acaso, com 24 tratamentos e quatro repetições, em esquema fatorial incompleto, 3x3x2 + 6: três doses de N (80, 130 e 180 kg ha-1); três sistemas de cobertura do solo (crotalária, milheto e pousio); duas épocas de aplicação do N (estádio quatro ou oito folhas); e seis tratamentos adicionais (três sem aplicação de N e três que receberam 30 kg ha-1 de N na semeadura). O cultivo do milho em sucessão à crotalária proporciona maior quantidade na planta e aproveitamento pela planta do N proveniente do fertilizante e maior produtividade de grãos. A aplicação do N ao milho com quatro folhas proporciona maior produtividade de grãos, comparada à aplicação com oito folhas, quando em sucessão ao milheto.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSilva, Edson Cabral daMuraoka, TakashiBuzetti, SalatiérTrivelin, Paulo César Ocheuze2006-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7162Pesquisa Agropecuaria Brasileira; v.41, n.3, mar. 2006; 477-486Pesquisa Agropecuária Brasileira; v.41, n.3, mar. 2006; 477-4861678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7162/4207info:eu-repo/semantics/openAccess2014-09-26T17:55:23Zoai:ojs.seer.sct.embrapa.br:article/7162Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-26T17:55:23Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
Manejo de nitrogênio no milho sob plantio direto com diferentes plantas de cobertura, em Latossolo Vermelho
title Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
spellingShingle Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
Silva, Edson Cabral da
Zea mays; fertilizer 15N; fallow; green manure; Cerrado; no-tillage
Zea mays; fertilizante 15N; pousio; adubo verde; Cerrado; plantio direto
title_short Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
title_full Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
title_fullStr Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
title_full_unstemmed Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
title_sort Nitrogen management in corn under no-tillage with different cover crops in a Rhodic Hapludox soil
author Silva, Edson Cabral da
author_facet Silva, Edson Cabral da
Muraoka, Takashi
Buzetti, Salatiér
Trivelin, Paulo César Ocheuze
author_role author
author2 Muraoka, Takashi
Buzetti, Salatiér
Trivelin, Paulo César Ocheuze
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Silva, Edson Cabral da
Muraoka, Takashi
Buzetti, Salatiér
Trivelin, Paulo César Ocheuze
dc.subject.por.fl_str_mv Zea mays; fertilizer 15N; fallow; green manure; Cerrado; no-tillage
Zea mays; fertilizante 15N; pousio; adubo verde; Cerrado; plantio direto
topic Zea mays; fertilizer 15N; fallow; green manure; Cerrado; no-tillage
Zea mays; fertilizante 15N; pousio; adubo verde; Cerrado; plantio direto
description The objective of this work was to evaluate the best rate and time for N application, and N utilization using urea-15N, by corn crop grown under no-tillage system, in succession to sun hemp (Crotalaria juncea L.), millet (Pennisetum americanum) and to the spontaneous vegetation (fallow ground), in a Rhodic Hapludox soil in Cerrrado. The experimental design was randomized complete blocks, with 24 treatments and four replications, in an incomplete factorial 3x3x2 + 6: three N rates (80, 130 and 180 kg ha-1 N); three preceding cover crops (sun hemp, millet and fallow ground); two N application time (four leaves or eight leaves stage); and six additional treatments (three without N application and three that received 30 kg ha-1 N at seeding). The corn grown in succession to sun hemp provided higher amount of N derived from fertilizer, N utilization efficiency and grain yield. Application of N to corn four leaves stage provides higher grain yield, compared to the application to eight leaves stage, in succession to millet.
publishDate 2006
dc.date.none.fl_str_mv 2006-03-01
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/7162
url https://seer.sct.embrapa.br/index.php/pab/article/view/7162
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7162/4207
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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.41, n.3, mar. 2006; 477-486
Pesquisa Agropecuária Brasileira; v.41, n.3, mar. 2006; 477-486
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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