Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
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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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 |
_version_ |
1799874819986030592 |