Use of nitrogen sufficiency index to estimate topdressing doses for common bean

Detalhes bibliográficos
Autor(a) principal: Nascimento, Gustavo Henrique do
Data de Publicação: 2021
Outros Autores: Moreira, Silvino Guimarães, Martins, Fábio Aurélio Dias, Pimentel, Guilherme Vieira, Silva, Junior Cézar Resende
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/69571
Resumo: Portable chlorophyll meters can be used to improve the prediction of nitrogen (N) doses for common bean. This study aimed to evaluate two chlorophyll meters (Minolta SPAD-502 and ClorofiLOG CFL 1030) to predict topdressing N doses for the Pérola, TAA Gol and BRSMG Uai cultivars and for the VR 20 line. Eight field experiments (four genotypes and two devices) were carried out in a randomized blocks design, with four replicates, being the treatments topdressing N applications corresponding to four nitrogen sufficiency indices. There were discrepancies between the indices obtained by the different devices for the same genotype, as well as among those obtained with the same device for the different genotypes studied. Thus, when the index is used to define the N doses, the genotype and the chlorophyll meter used must be considered. In addition, the recommended index of 95 % should not be generalized to all the cultivars and should be reduced. KEYWORDS: Phaseolus vulgaris L., chlorophyll meter, nitrogen fertilization.
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spelling Use of nitrogen sufficiency index to estimate topdressing doses for common beanÍndice de suficiência de nitrogênio na estimativa de doses em cobertura para feijoeiroPortable chlorophyll meters can be used to improve the prediction of nitrogen (N) doses for common bean. This study aimed to evaluate two chlorophyll meters (Minolta SPAD-502 and ClorofiLOG CFL 1030) to predict topdressing N doses for the Pérola, TAA Gol and BRSMG Uai cultivars and for the VR 20 line. Eight field experiments (four genotypes and two devices) were carried out in a randomized blocks design, with four replicates, being the treatments topdressing N applications corresponding to four nitrogen sufficiency indices. There were discrepancies between the indices obtained by the different devices for the same genotype, as well as among those obtained with the same device for the different genotypes studied. Thus, when the index is used to define the N doses, the genotype and the chlorophyll meter used must be considered. In addition, the recommended index of 95 % should not be generalized to all the cultivars and should be reduced. KEYWORDS: Phaseolus vulgaris L., chlorophyll meter, nitrogen fertilization.Clorofilômetros portáteis podem ser utilizados para melhorar a previsão de doses de nitrogênio (N) em feijoeiro. Objetivou-se avaliar dois clorofilômetros (Minolta SPAD-502 e ClorofiLOG CFL 1030) para predizer doses de N em cobertura para as cultivares Pérola, TAA Gol, BRSMG Uai e para a linhagem VR 20. Oito experimentos de campo (quatro genótipos e dois dispositivos) foram conduzidos em delineamento de blocos casualizados, com quatro repetições, cujos tratamentos consistiram na aplicação de N em cobertura correspondendo a quatro índices de suficiência de nitrogênio. Houve discrepâncias entre os índices obtidos pelos diferentes dispositivos para o mesmo genótipo, bem como entre os obtidos com o mesmo dispositivo para os diferentes genótipos estudados. Assim, quando o índice é utilizado para definir as doses de N, deve-se considerar o genótipo e o clorofilômetro utilizado. Além disso, o índice recomendado de 95 % não deve ser generalizado para todas as cultivares e deve ser reduzido. PALAVRAS-CHAVES: Phaseolus vulgaris L., clorofilômetro, adubação nitrogenada.Escola de Agronomia - Universidade Federal de Goiás2021-12-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/69571Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 51 (2021); e69571Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e69571Pesquisa Agropecuária Tropical; v. 51 (2021); e695711983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/69571/37691Copyright (c) 2021 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessNascimento, Gustavo Henrique doMoreira, Silvino GuimarãesMartins, Fábio Aurélio DiasPimentel, Guilherme VieiraSilva, Junior Cézar Resende2021-12-07T19:45:15Zoai:ojs.revistas.ufg.br:article/69571Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:33.364767Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Use of nitrogen sufficiency index to estimate topdressing doses for common bean
Índice de suficiência de nitrogênio na estimativa de doses em cobertura para feijoeiro
title Use of nitrogen sufficiency index to estimate topdressing doses for common bean
spellingShingle Use of nitrogen sufficiency index to estimate topdressing doses for common bean
Nascimento, Gustavo Henrique do
title_short Use of nitrogen sufficiency index to estimate topdressing doses for common bean
title_full Use of nitrogen sufficiency index to estimate topdressing doses for common bean
title_fullStr Use of nitrogen sufficiency index to estimate topdressing doses for common bean
title_full_unstemmed Use of nitrogen sufficiency index to estimate topdressing doses for common bean
title_sort Use of nitrogen sufficiency index to estimate topdressing doses for common bean
author Nascimento, Gustavo Henrique do
author_facet Nascimento, Gustavo Henrique do
Moreira, Silvino Guimarães
Martins, Fábio Aurélio Dias
Pimentel, Guilherme Vieira
Silva, Junior Cézar Resende
author_role author
author2 Moreira, Silvino Guimarães
Martins, Fábio Aurélio Dias
Pimentel, Guilherme Vieira
Silva, Junior Cézar Resende
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Nascimento, Gustavo Henrique do
Moreira, Silvino Guimarães
Martins, Fábio Aurélio Dias
Pimentel, Guilherme Vieira
Silva, Junior Cézar Resende
description Portable chlorophyll meters can be used to improve the prediction of nitrogen (N) doses for common bean. This study aimed to evaluate two chlorophyll meters (Minolta SPAD-502 and ClorofiLOG CFL 1030) to predict topdressing N doses for the Pérola, TAA Gol and BRSMG Uai cultivars and for the VR 20 line. Eight field experiments (four genotypes and two devices) were carried out in a randomized blocks design, with four replicates, being the treatments topdressing N applications corresponding to four nitrogen sufficiency indices. There were discrepancies between the indices obtained by the different devices for the same genotype, as well as among those obtained with the same device for the different genotypes studied. Thus, when the index is used to define the N doses, the genotype and the chlorophyll meter used must be considered. In addition, the recommended index of 95 % should not be generalized to all the cultivars and should be reduced. KEYWORDS: Phaseolus vulgaris L., chlorophyll meter, nitrogen fertilization.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-07
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/69571
url https://revistas.ufg.br/pat/article/view/69571
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/69571/37691
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); e69571
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e69571
Pesquisa Agropecuária Tropical; v. 51 (2021); e69571
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
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