Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/69160 |
Resumo: | The current recommendations for nitrogen (N) doses may not contemplate the complex dynamics of N in the soil, what may imply in insufficiency to the crop demand. This study aimed to evaluate the use of two portable chlorophyll meters (Minolta SPAD 502 and ClorofiLOG model CFL 1030), after defining the nitrogen sufficiency index (NSI), to estimate the nitrogen fertilization factor in modern bean genotypes. A block design was used, with four replications. Each experiment consisted of four treatments, with doses of 0, 5, 10 and 20 kg ha-1 of N for each 1 % considered below the NSI defined as adequate for each cultivar. At the end of the cycle, the production components and yield were evaluated. It was not possible to obtain precise adjustments in the methodology for the TAA Gol cultivar. The fertilization factor of 12.5 kg ha-1 of N for each 1 % below the NSI of 90 % proved to be efficient for the Pérola cultivar, when the SPAD-502 chlorophyll meter was used. In genotypes with size and cycle characteristics similar to those of the BRSMG Uai cultivar and the VR 20 strain, using a fertilization factor between 14 and 16 kg ha-1 of N, the NSI of 95 % must be reduced, in order to increase the efficiency of the nitrogen fertilization. KEYWORDS: Phaseolus vulgaris L., nitrogen management, chlorophyll meter. |
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Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common beanFator de adubação associado ao índice de suficiência de nitrogênio na adubação nitrogenada em cobertura de feijão-comumThe current recommendations for nitrogen (N) doses may not contemplate the complex dynamics of N in the soil, what may imply in insufficiency to the crop demand. This study aimed to evaluate the use of two portable chlorophyll meters (Minolta SPAD 502 and ClorofiLOG model CFL 1030), after defining the nitrogen sufficiency index (NSI), to estimate the nitrogen fertilization factor in modern bean genotypes. A block design was used, with four replications. Each experiment consisted of four treatments, with doses of 0, 5, 10 and 20 kg ha-1 of N for each 1 % considered below the NSI defined as adequate for each cultivar. At the end of the cycle, the production components and yield were evaluated. It was not possible to obtain precise adjustments in the methodology for the TAA Gol cultivar. The fertilization factor of 12.5 kg ha-1 of N for each 1 % below the NSI of 90 % proved to be efficient for the Pérola cultivar, when the SPAD-502 chlorophyll meter was used. In genotypes with size and cycle characteristics similar to those of the BRSMG Uai cultivar and the VR 20 strain, using a fertilization factor between 14 and 16 kg ha-1 of N, the NSI of 95 % must be reduced, in order to increase the efficiency of the nitrogen fertilization. KEYWORDS: Phaseolus vulgaris L., nitrogen management, chlorophyll meter.As atuais recomendações de doses de nitrogênio (N) podem não contemplar a dinâmica complexa do N no solo, o que pode implicar em insuficiência à demanda da cultura. Objetivou-se avaliar o uso de dois medidores portáteis de clorofila (Minolta SPAD 502 e ClorofiLOG modelo CFL 1030), após a definição do índice de suficiência de nitrogênio (ISN), para estimar o fator de adubação nitrogenada em genótipos modernos de feijão. Utilizou-se delineamento em blocos, com 4 repetições. Cada experimento foi composto por quatro tratamentos, com doses de 0; 5; 10; e 20 kg ha-1 de N para cada 1 % considerado abaixo do ISN definido como adequado para cada cultivar. Ao final do ciclo, foram avaliados os componentes de produção e a produtividade. Não foi possível a obtenção de ajustes precisos na metodologia para a cultivar TAA Gol. O fator de adubação de 12,5 kg ha-1 de N a cada 1 % abaixo do ISN de 90 % mostrou-se eficiente para a cultivar Pérola, quando utilizado o clorofilômetro SPAD-502. Em genótipos com características de porte e ciclo semelhantes às da cultivar BRSMG Uai e linhagem VR 20, com a utilização de fator de adubação entre 14 e 16 kg ha-1 de N, o ISN de 95 % deve ser reduzido, visando aumentar a eficiência da adubação nitrogenada. PALAVRAS-CHAVES: Phaseolus vulgaris L., manejo de nitrogênio, clorofilômetro.Escola de Agronomia - Universidade Federal de Goiás2021-10-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/69160Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 51 (2021); e69160Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e69160Pesquisa Agropecuária Tropical; v. 51 (2021); e691601983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/69160/37291Copyright (c) 2021 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessNascimento, Gustavo Henrique doMoraes, Luciana CorreaMoreira, Silvino GuimarãesMartins, Fábio Aurélio DiasPimentel, Guilherme Vieira2021-10-15T18:02:01Zoai:ojs.revistas.ufg.br:article/69160Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:33.084470Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean Fator de adubação associado ao índice de suficiência de nitrogênio na adubação nitrogenada em cobertura de feijão-comum |
title |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean |
spellingShingle |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean Nascimento, Gustavo Henrique do |
title_short |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean |
title_full |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean |
title_fullStr |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean |
title_full_unstemmed |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean |
title_sort |
Fertilization factor associated with nitrogen sufficiency index for nitrogen topdressing fertilization in common bean |
author |
Nascimento, Gustavo Henrique do |
author_facet |
Nascimento, Gustavo Henrique do Moraes, Luciana Correa Moreira, Silvino Guimarães Martins, Fábio Aurélio Dias Pimentel, Guilherme Vieira |
author_role |
author |
author2 |
Moraes, Luciana Correa Moreira, Silvino Guimarães Martins, Fábio Aurélio Dias Pimentel, Guilherme Vieira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Nascimento, Gustavo Henrique do Moraes, Luciana Correa Moreira, Silvino Guimarães Martins, Fábio Aurélio Dias Pimentel, Guilherme Vieira |
description |
The current recommendations for nitrogen (N) doses may not contemplate the complex dynamics of N in the soil, what may imply in insufficiency to the crop demand. This study aimed to evaluate the use of two portable chlorophyll meters (Minolta SPAD 502 and ClorofiLOG model CFL 1030), after defining the nitrogen sufficiency index (NSI), to estimate the nitrogen fertilization factor in modern bean genotypes. A block design was used, with four replications. Each experiment consisted of four treatments, with doses of 0, 5, 10 and 20 kg ha-1 of N for each 1 % considered below the NSI defined as adequate for each cultivar. At the end of the cycle, the production components and yield were evaluated. It was not possible to obtain precise adjustments in the methodology for the TAA Gol cultivar. The fertilization factor of 12.5 kg ha-1 of N for each 1 % below the NSI of 90 % proved to be efficient for the Pérola cultivar, when the SPAD-502 chlorophyll meter was used. In genotypes with size and cycle characteristics similar to those of the BRSMG Uai cultivar and the VR 20 strain, using a fertilization factor between 14 and 16 kg ha-1 of N, the NSI of 95 % must be reduced, in order to increase the efficiency of the nitrogen fertilization. KEYWORDS: Phaseolus vulgaris L., nitrogen management, chlorophyll meter. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10-15 |
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/69160 |
url |
https://revistas.ufg.br/pat/article/view/69160 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/69160/37291 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 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. 51 (2021); e69160 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e69160 Pesquisa Agropecuária Tropical; v. 51 (2021); e69160 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_ |
1799874821101715456 |