Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation

Detalhes bibliográficos
Autor(a) principal: Mario Zuffo, Alan
Data de Publicação: 2018
Outros Autores: Steiner, Fábio, Busch, Aécio, Zoz, Tiago
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/52637
Resumo: In early soybean cultivars of high productive potential, the use of chemical nitrogen (N) fertilizer may be a critical factor to meet the crop N requirements for obtaining high yields. In order to determine the response of early soybean cultivars to doses and times of nitrogen fertilizer application, associated with the inoculation of Bradyrhizobium japonicum, two field experiments were conducted in a Quartzipsamment soil from the Brazilian tropical Savannah, during the 2016/2017 and 2017/2018 growing seasons. The experimental treatments were arranged in a 2 × 3 × 4 factorial scheme, being two soybean cultivars (BRS 1074 IPRO and ST 797 IPRO), three application times of N fertilizer (sowing, 30 and 50 days after the emergence) and four N doses (0 kg ha-1, 20 kg ha-1, 40 kg ha-1 and 60 kg ha-1). The following variables were evaluated: plant height, shoot dry matter, number of nodules, nodule dry matter, first pod height, number of pods, number of grains per pod, 1,000-grain mass, grain yield and harvest index. The use of N fertilizer did not improve the production components and did not increase the soybean grain yield, regardless of the doses and times of application. Therefore, it was concluded that, if efficient strains of B. japonicum are used in areas of first soybean crop, in a Quartzipsamment soil with medium-high fertility, especially with a relatively high N availability due to the mineralization of the soil organic matter, there is no need to apply starter or late doses of nitrogen fertilizer.
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spelling Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculationResposta de cultivares de soja precoce a adubação nitrogenada associada à inoculação com Bradyrhizobium japonicumGlycine max L. Merrillbiological nitrogen fixationureanodulation.Glycine max L. MerrillFixação biológica de nitrogênioUreiaNodulaçãoIn early soybean cultivars of high productive potential, the use of chemical nitrogen (N) fertilizer may be a critical factor to meet the crop N requirements for obtaining high yields. In order to determine the response of early soybean cultivars to doses and times of nitrogen fertilizer application, associated with the inoculation of Bradyrhizobium japonicum, two field experiments were conducted in a Quartzipsamment soil from the Brazilian tropical Savannah, during the 2016/2017 and 2017/2018 growing seasons. The experimental treatments were arranged in a 2 × 3 × 4 factorial scheme, being two soybean cultivars (BRS 1074 IPRO and ST 797 IPRO), three application times of N fertilizer (sowing, 30 and 50 days after the emergence) and four N doses (0 kg ha-1, 20 kg ha-1, 40 kg ha-1 and 60 kg ha-1). The following variables were evaluated: plant height, shoot dry matter, number of nodules, nodule dry matter, first pod height, number of pods, number of grains per pod, 1,000-grain mass, grain yield and harvest index. The use of N fertilizer did not improve the production components and did not increase the soybean grain yield, regardless of the doses and times of application. Therefore, it was concluded that, if efficient strains of B. japonicum are used in areas of first soybean crop, in a Quartzipsamment soil with medium-high fertility, especially with a relatively high N availability due to the mineralization of the soil organic matter, there is no need to apply starter or late doses of nitrogen fertilizer.Em cultivares de soja precoce de alto potencial produtivo, a adubação nitrogenada pode ser um fator crítico às exigências de nitrogênio (N) da cultura para a obtenção de altas produtividades. Objetivando-se determinar a resposta de cultivares de soja precoce a doses e épocas de aplicação de N, associada à inoculação de Bradyrhizobium japonicum, dois experimentos foram conduzidos em Neossolo Quartzarênico do Cerrado brasileiro, durante as safras de 2016/2017 e 2017/2018. Os tratamentos experimentais foram arranjados em esquema fatorial 2 × 3 × 4, sendo duas cultivares de soja (BRS 1074 IPRO e ST 797 IPRO), três épocas de aplicação do fertilizante nitrogenado (semeadura, 30 e 50 dias após a emergência) e quatro doses de N (0 kg ha-1, 20 kg ha-1, 40 kg ha-1 e 60 kg ha-1). Avaliaram-se a altura de planta, matéria seca da parte aérea, número e matéria seca de nódulos, altura de inserção da primeira vagem, número de vagens e de grãos por vagem, massa de mil grãos, produtividade de grãos e índice de colheita. A adubação não resultou em aumento nos componentes de produção e produtividade de grãos, independentemente das doses e épocas de aplicação. Por isso, conclui-se que, se estirpes eficientes de B. japonicum forem utilizadas em áreas de primeiro cultivo de soja em Neossolo Quartzarênico de média a alta fertilidade, em especial com disponibilidade relativamente alta de N devido à mineralização de matéria orgânica do solo, não há necessidade de se aplicar doses iniciais ou tardias de adubação nitrogenada.Escola de Agronomia - Universidade Federal de Goiás2018-12-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/52637Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 48, n. 4, Oct./Dec. 2018; 436-446Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 48, n. 4, out./dez. 2018; 436-446Pesquisa Agropecuária Tropical; v. 48, n. 4, out./dez. 2018; 436-4461983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/52637/26781Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessMario Zuffo, AlanSteiner, FábioBusch, AécioZoz, Tiago2020-07-13T19:35:23Zoai:ojs.revistas.ufg.br:article/52637Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:21.381004Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
Resposta de cultivares de soja precoce a adubação nitrogenada associada à inoculação com Bradyrhizobium japonicum
title Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
spellingShingle Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
Mario Zuffo, Alan
Glycine max L. Merrill
biological nitrogen fixation
urea
nodulation.
Glycine max L. Merrill
Fixação biológica de nitrogênio
Ureia
Nodulação
title_short Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
title_full Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
title_fullStr Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
title_full_unstemmed Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
title_sort Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
author Mario Zuffo, Alan
author_facet Mario Zuffo, Alan
Steiner, Fábio
Busch, Aécio
Zoz, Tiago
author_role author
author2 Steiner, Fábio
Busch, Aécio
Zoz, Tiago
author2_role author
author
author
dc.contributor.author.fl_str_mv Mario Zuffo, Alan
Steiner, Fábio
Busch, Aécio
Zoz, Tiago
dc.subject.por.fl_str_mv Glycine max L. Merrill
biological nitrogen fixation
urea
nodulation.
Glycine max L. Merrill
Fixação biológica de nitrogênio
Ureia
Nodulação
topic Glycine max L. Merrill
biological nitrogen fixation
urea
nodulation.
Glycine max L. Merrill
Fixação biológica de nitrogênio
Ureia
Nodulação
description In early soybean cultivars of high productive potential, the use of chemical nitrogen (N) fertilizer may be a critical factor to meet the crop N requirements for obtaining high yields. In order to determine the response of early soybean cultivars to doses and times of nitrogen fertilizer application, associated with the inoculation of Bradyrhizobium japonicum, two field experiments were conducted in a Quartzipsamment soil from the Brazilian tropical Savannah, during the 2016/2017 and 2017/2018 growing seasons. The experimental treatments were arranged in a 2 × 3 × 4 factorial scheme, being two soybean cultivars (BRS 1074 IPRO and ST 797 IPRO), three application times of N fertilizer (sowing, 30 and 50 days after the emergence) and four N doses (0 kg ha-1, 20 kg ha-1, 40 kg ha-1 and 60 kg ha-1). The following variables were evaluated: plant height, shoot dry matter, number of nodules, nodule dry matter, first pod height, number of pods, number of grains per pod, 1,000-grain mass, grain yield and harvest index. The use of N fertilizer did not improve the production components and did not increase the soybean grain yield, regardless of the doses and times of application. Therefore, it was concluded that, if efficient strains of B. japonicum are used in areas of first soybean crop, in a Quartzipsamment soil with medium-high fertility, especially with a relatively high N availability due to the mineralization of the soil organic matter, there is no need to apply starter or late doses of nitrogen fertilizer.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-10
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/52637
url https://revistas.ufg.br/pat/article/view/52637
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/52637/26781
dc.rights.driver.fl_str_mv Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
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]; v. 48, n. 4, Oct./Dec. 2018; 436-446
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 48, n. 4, out./dez. 2018; 436-446
Pesquisa Agropecuária Tropical; v. 48, n. 4, out./dez. 2018; 436-446
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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