Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system

Detalhes bibliográficos
Autor(a) principal: Costa, Nídia Raquel
Data de Publicação: 2012
Outros Autores: Andreotti, Marcelo, Gameiro, Roberta de Aquino, Pariz, Cristiano Magalhães, Buzetti, Salatiér, Lopes, Keny Samejima Mascarenhas
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/10479
Resumo: The objective of this work was to evaluate grain and forage yield of the intercropping of corn with Brachiaria species (2008/2009 and 2009/2010 crop seasons), subjected to nitrogen topdressing rates in a no tillage system. A completely randomized block design was used, with four replicates, in a 2x5 factorial arrangement, with two Brachiaria species (Urochloa brizantha 'Xaraés' and U. ruziziensis) and five N topdressing rates: 0, 50, 100, 150, and 200 kg ha‑1. The following were evaluated: indirect readings of leaf-chlorophyll content (Falker chlorophyll index, ICF), macronutrient content in leaves, yield components and grain yield of corn, and forage dry mass yield after intercropping. It was observed that the species U. ruziziensis was more competitive with corn in intercropping, providing lower nutritional content and ICF in both evaluated seasons. Vegetative growth, yield components, and grain yield of corn were not affected by the intercrops. Nitrogen topdressing fertilization linearly increases the weight of 100 grains (2008/2009 season), and all yield components and grain yield (2009/2010 season).
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spelling Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage systemAdubação nitrogenada no consórcio de milho com duas espécies de braquiária em sistema plantio diretoUrochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; chlorophyll; crop‑livestock integration; nitrogen.Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; clorofila; integração lavoura‑pecuária; nitrogênio.The objective of this work was to evaluate grain and forage yield of the intercropping of corn with Brachiaria species (2008/2009 and 2009/2010 crop seasons), subjected to nitrogen topdressing rates in a no tillage system. A completely randomized block design was used, with four replicates, in a 2x5 factorial arrangement, with two Brachiaria species (Urochloa brizantha 'Xaraés' and U. ruziziensis) and five N topdressing rates: 0, 50, 100, 150, and 200 kg ha‑1. The following were evaluated: indirect readings of leaf-chlorophyll content (Falker chlorophyll index, ICF), macronutrient content in leaves, yield components and grain yield of corn, and forage dry mass yield after intercropping. It was observed that the species U. ruziziensis was more competitive with corn in intercropping, providing lower nutritional content and ICF in both evaluated seasons. Vegetative growth, yield components, and grain yield of corn were not affected by the intercrops. Nitrogen topdressing fertilization linearly increases the weight of 100 grains (2008/2009 season), and all yield components and grain yield (2009/2010 season).O objetivo deste trabalho foi avaliar a produtividade de grãos e de forragem do consórcio entre milho e espécies de braquiária (safras de 2008/2009 e 2009/2010), submetidos a doses de nitrogênio em cobertura, em sistema plantio direto. Utilizou-se o delineamento experimental inteiramente casualizado, com quatro repetições, em arranjo fatorial 2x5, com duas espécies de braquiária (Urochloa brizantha, 'Xaraés' e U. ruziziensis) e cinco doses de N aplicadas em cobertura: 0, 50, 100, 150 e 200 kg ha‑1. Foram avaliados: leituras indiretas do teor foliar de clorofila (índice de clorofila Falker, ICF), teores de macronutrientes foliares, componentes da produção e produtividade de grãos do milho, e produtividade de matéria seca das forrageiras após o consórcio. Constatou-se que a espécie U. ruziziensis foi a mais competitiva com o milho em consórcio, o que proporcionou menores teores nutricionais e ICF nas duas safras analisadas. O crescimento vegetativo, os componentes da produção e a produtividade de grãos do milho não foram influenciados pelos consórcios. A adubação nitrogenada em cobertura aumenta linearmente a massa de 100 grãos (safra de 2008/2009), e todos os componentes da produção e a produtividade de grãos (safra de 2009/2010).Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPq, FapespCosta, Nídia RaquelAndreotti, MarceloGameiro, Roberta de AquinoPariz, Cristiano MagalhãesBuzetti, SalatiérLopes, Keny Samejima Mascarenhas2012-09-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/10479Pesquisa Agropecuaria Brasileira; v.47, n.8, ago. 2012; 1038-1047Pesquisa Agropecuária Brasileira; v.47, n.8, ago. 2012; 1038-10471678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/10479/7631https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10479/5857info:eu-repo/semantics/openAccess2012-09-27T14:23:16Zoai:ojs.seer.sct.embrapa.br:article/10479Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-09-27T14:23:16Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
Adubação nitrogenada no consórcio de milho com duas espécies de braquiária em sistema plantio direto
title Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
spellingShingle Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
Costa, Nídia Raquel
Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; chlorophyll; crop‑livestock integration; nitrogen.
Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; clorofila; integração lavoura‑pecuária; nitrogênio.
title_short Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
title_full Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
title_fullStr Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
title_full_unstemmed Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
title_sort Nitrogen fertilization in the intercropping of corn with two Brachiaria species in a no‑tillage system
author Costa, Nídia Raquel
author_facet Costa, Nídia Raquel
Andreotti, Marcelo
Gameiro, Roberta de Aquino
Pariz, Cristiano Magalhães
Buzetti, Salatiér
Lopes, Keny Samejima Mascarenhas
author_role author
author2 Andreotti, Marcelo
Gameiro, Roberta de Aquino
Pariz, Cristiano Magalhães
Buzetti, Salatiér
Lopes, Keny Samejima Mascarenhas
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
CNPq, Fapesp
dc.contributor.author.fl_str_mv Costa, Nídia Raquel
Andreotti, Marcelo
Gameiro, Roberta de Aquino
Pariz, Cristiano Magalhães
Buzetti, Salatiér
Lopes, Keny Samejima Mascarenhas
dc.subject.por.fl_str_mv Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; chlorophyll; crop‑livestock integration; nitrogen.
Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; clorofila; integração lavoura‑pecuária; nitrogênio.
topic Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; chlorophyll; crop‑livestock integration; nitrogen.
Urochloa brizantha 'Xaraés'; Urochloa ruziziensis; Zea mays; clorofila; integração lavoura‑pecuária; nitrogênio.
description The objective of this work was to evaluate grain and forage yield of the intercropping of corn with Brachiaria species (2008/2009 and 2009/2010 crop seasons), subjected to nitrogen topdressing rates in a no tillage system. A completely randomized block design was used, with four replicates, in a 2x5 factorial arrangement, with two Brachiaria species (Urochloa brizantha 'Xaraés' and U. ruziziensis) and five N topdressing rates: 0, 50, 100, 150, and 200 kg ha‑1. The following were evaluated: indirect readings of leaf-chlorophyll content (Falker chlorophyll index, ICF), macronutrient content in leaves, yield components and grain yield of corn, and forage dry mass yield after intercropping. It was observed that the species U. ruziziensis was more competitive with corn in intercropping, providing lower nutritional content and ICF in both evaluated seasons. Vegetative growth, yield components, and grain yield of corn were not affected by the intercrops. Nitrogen topdressing fertilization linearly increases the weight of 100 grains (2008/2009 season), and all yield components and grain yield (2009/2010 season).
publishDate 2012
dc.date.none.fl_str_mv 2012-09-25
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/10479
url https://seer.sct.embrapa.br/index.php/pab/article/view/10479
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/10479/7631
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10479/5857
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.47, n.8, ago. 2012; 1038-1047
Pesquisa Agropecuária Brasileira; v.47, n.8, ago. 2012; 1038-1047
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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