Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/65525 |
Resumo: | Topdressing nitrogen (N) rates may alter the second-crop corn performance, and this response may vary if the corn is grown single or intercropped with grass or leguminous species. This study aimed to evaluate the effect of topdressing N rates on the growth and productive performance of second-crop corn grown single or intercropped with ruzigrass (Urochloa ruziziensis) or showy rattlebox (Crotalaria spectabilis). The experiment was carried out in a randomized block design, with a split-plot arrangement and four replications. The plots consisted of corn grown single or intercropped with ruzigrass or showy rattlebox, while the subplots consisted of N rates (0, 60, 120, 180 and 240 kg ha-1). The evaluated variables were: SPAD index at R1; normalized difference vegetation index at V4 and V7; leaf area at R1; leaf and total corn dry mass at R1; grain and total corn dry mass at R6; number of ears per plant and grains per ear; 1,000-grain mass; and grain yield. In the absence of N fertilization and with topdressing of 60 kg ha-1 of N, the intercropping with U. ruziziensis reduces the growth and productive performance of second-crop corn. The topdressing N fertilization for second-crop corn intercropped with U. ruziziensis minimizes the forage competition on corn growth and provides a productive performance similar to monocropping from 120 kg ha-1 of N. The intercropping with C. spectabilis does not change the corn growth and productive performance, as well as the response to the topdressing N rates, when compared to monocropping, in the second crop cultivation. KEYWORDS: Zea mays L., Urochloa ruziziensis, Crotalaria spectabilis, nitrogen fertilization. |
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Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattleboxDoses de nitrogênio no desempenho agronômico de milho segunda safra solteiro e consorciado com braquiária ou crotaláriaTopdressing nitrogen (N) rates may alter the second-crop corn performance, and this response may vary if the corn is grown single or intercropped with grass or leguminous species. This study aimed to evaluate the effect of topdressing N rates on the growth and productive performance of second-crop corn grown single or intercropped with ruzigrass (Urochloa ruziziensis) or showy rattlebox (Crotalaria spectabilis). The experiment was carried out in a randomized block design, with a split-plot arrangement and four replications. The plots consisted of corn grown single or intercropped with ruzigrass or showy rattlebox, while the subplots consisted of N rates (0, 60, 120, 180 and 240 kg ha-1). The evaluated variables were: SPAD index at R1; normalized difference vegetation index at V4 and V7; leaf area at R1; leaf and total corn dry mass at R1; grain and total corn dry mass at R6; number of ears per plant and grains per ear; 1,000-grain mass; and grain yield. In the absence of N fertilization and with topdressing of 60 kg ha-1 of N, the intercropping with U. ruziziensis reduces the growth and productive performance of second-crop corn. The topdressing N fertilization for second-crop corn intercropped with U. ruziziensis minimizes the forage competition on corn growth and provides a productive performance similar to monocropping from 120 kg ha-1 of N. The intercropping with C. spectabilis does not change the corn growth and productive performance, as well as the response to the topdressing N rates, when compared to monocropping, in the second crop cultivation. KEYWORDS: Zea mays L., Urochloa ruziziensis, Crotalaria spectabilis, nitrogen fertilization.Doses de nitrogênio (N) em cobertura podem alterar o desempenho da cultura do milho segunda safra, e essa resposta pode variar se o milho for cultivado solteiro ou consorciado com espécies de gramíneas ou leguminosas. Objetivou-se avaliar o efeito de doses de N aplicadas em cobertura no crescimento e desempenho produtivo de milho segunda safra solteiro e consorciado com braquiária (Urochloa ruziziensis) ou crotalária (Crotalaria spectabilis). O delineamento experimental foi em blocos casualizados, com parcelas subdivididas e quatro repetições. As parcelas foram constituídas pelo milho solteiro, consorciado com braquiária ou com crotalária, e as subparcelas pelas doses de N (0, 60, 120, 180 e 240 kg ha-1). As variáveis avaliadas foram: índice SPAD em R1; índice de vegetação por diferença normalizada em V4 e V7; área foliar em R1; massa seca de folha e total do milho em R1; massa seca de grão e total do milho em R6; número de espigas por planta e de grãos por espiga; massa de mil grãos; e produtividade de grãos. Na ausência de adubação nitrogenada e com uso de 60 kg ha-1 de N em cobertura, o consórcio com U. ruziziensis reduz o crescimento e o desempenho produtivo de milho segunda safra. A adubação nitrogenada de cobertura no milho segunda safra em consórcio com U. ruziziensis minimiza a competição da forrageira sobre o crescimento do milho e proporciona, a partir de 120 kg ha-1 de N, desempenho produtivo similar ao do cereal solteiro. O consórcio com C. spectabilis não altera o crescimento e o desempenho produtivo do milho, bem como a resposta a doses de N aplicadas em cobertura, em relação ao milho solteiro, na segunda safra. PALAVRAS-CHAVE: Zea mays L., Urochloa ruziziensis, Crotalaria spectabilis, adubação nitrogenada.Escola de Agronomia - Universidade Federal de Goiás2020-12-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/65525Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e65525Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e65525Pesquisa Agropecuária Tropical; v. 50 (2020); e655251983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/65525/35835Copyright (c) 2020 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessLima da Costa Sapucay, Moryb JorgeCoelho, Antonio Eduardo Bratti , Felipe Locatelli , Jorge Luiz Sangoi , Luis Balbinot Junior , Alvadi Antonio Zucareli , Claudemir2020-12-08T20:05:01Zoai:ojs.revistas.ufg.br:article/65525Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:29.793477Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox Doses de nitrogênio no desempenho agronômico de milho segunda safra solteiro e consorciado com braquiária ou crotalária |
title |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox |
spellingShingle |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox Lima da Costa Sapucay, Moryb Jorge |
title_short |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox |
title_full |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox |
title_fullStr |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox |
title_full_unstemmed |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox |
title_sort |
Nitrogen rates on the agronomic performance of second-crop corn single and intercropped with ruzigrass or showy rattlebox |
author |
Lima da Costa Sapucay, Moryb Jorge |
author_facet |
Lima da Costa Sapucay, Moryb Jorge Coelho, Antonio Eduardo Bratti , Felipe Locatelli , Jorge Luiz Sangoi , Luis Balbinot Junior , Alvadi Antonio Zucareli , Claudemir |
author_role |
author |
author2 |
Coelho, Antonio Eduardo Bratti , Felipe Locatelli , Jorge Luiz Sangoi , Luis Balbinot Junior , Alvadi Antonio Zucareli , Claudemir |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Lima da Costa Sapucay, Moryb Jorge Coelho, Antonio Eduardo Bratti , Felipe Locatelli , Jorge Luiz Sangoi , Luis Balbinot Junior , Alvadi Antonio Zucareli , Claudemir |
description |
Topdressing nitrogen (N) rates may alter the second-crop corn performance, and this response may vary if the corn is grown single or intercropped with grass or leguminous species. This study aimed to evaluate the effect of topdressing N rates on the growth and productive performance of second-crop corn grown single or intercropped with ruzigrass (Urochloa ruziziensis) or showy rattlebox (Crotalaria spectabilis). The experiment was carried out in a randomized block design, with a split-plot arrangement and four replications. The plots consisted of corn grown single or intercropped with ruzigrass or showy rattlebox, while the subplots consisted of N rates (0, 60, 120, 180 and 240 kg ha-1). The evaluated variables were: SPAD index at R1; normalized difference vegetation index at V4 and V7; leaf area at R1; leaf and total corn dry mass at R1; grain and total corn dry mass at R6; number of ears per plant and grains per ear; 1,000-grain mass; and grain yield. In the absence of N fertilization and with topdressing of 60 kg ha-1 of N, the intercropping with U. ruziziensis reduces the growth and productive performance of second-crop corn. The topdressing N fertilization for second-crop corn intercropped with U. ruziziensis minimizes the forage competition on corn growth and provides a productive performance similar to monocropping from 120 kg ha-1 of N. The intercropping with C. spectabilis does not change the corn growth and productive performance, as well as the response to the topdressing N rates, when compared to monocropping, in the second crop cultivation. KEYWORDS: Zea mays L., Urochloa ruziziensis, Crotalaria spectabilis, nitrogen fertilization. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-08 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/65525 |
url |
https://revistas.ufg.br/pat/article/view/65525 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/65525/35835 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e65525 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e65525 Pesquisa Agropecuária Tropical; v. 50 (2020); e65525 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874820981129216 |