Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler

Detalhes bibliográficos
Autor(a) principal: Peron, Igor Balbi Guirão
Data de Publicação: 2019
Outros Autores: Portugal, José Roberto, Arf, Orivaldo, Rodrigues, Ricardo Antônio Ferreira, Gitti, Douglas de Castilho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32893
Resumo: The lodging of rice plants significantly increases the losses of this crop. Lodging is caused by the inadequate management of water and fertilizers, particularly nitrogenous fertilizers. The use of growth regulators causes a reduction in plant height and consequently lodging, and may reduce harvest losses. The objective of this study was to evaluate nitrogen (N) doses with and without application of plant growth regulator in upland rice irrigated by a sprinkler system. The experimental design consisted of randomized blocks arranged in a 4 × 2 factorial design with four replicates. The treatments consisted of four N doses (0, 40, 80, and 120 kg ha-1) combined with the presence or absence of foliar application of a plant growth regulator. The application of 150 g ha-1 of trinexapac-ethyl at the flower differentiation stage reduced plant height and lodging. In addition, this treatment promoted increased 100-grain mass. The use of N doses in topdressing increased plant heights and grain yield. The plant growth regulator did not interfere with the milling yield of upland rice. Nitrogen fertilization in the topdressing did not interfere with the milling yield of upland rice irrigated by a sprinkler system.
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spelling Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinklerFornecimento de nitrogênio associado a aplicação de etil-trinexapac em arroz de terras altas irrigado por aspersãoOryza sativa LLodgingNitrogen fertilizationPlant growth regulator.Oryza sativa LAcamamentoAdubação nitrogenadaRegulador vegetal.The lodging of rice plants significantly increases the losses of this crop. Lodging is caused by the inadequate management of water and fertilizers, particularly nitrogenous fertilizers. The use of growth regulators causes a reduction in plant height and consequently lodging, and may reduce harvest losses. The objective of this study was to evaluate nitrogen (N) doses with and without application of plant growth regulator in upland rice irrigated by a sprinkler system. The experimental design consisted of randomized blocks arranged in a 4 × 2 factorial design with four replicates. The treatments consisted of four N doses (0, 40, 80, and 120 kg ha-1) combined with the presence or absence of foliar application of a plant growth regulator. The application of 150 g ha-1 of trinexapac-ethyl at the flower differentiation stage reduced plant height and lodging. In addition, this treatment promoted increased 100-grain mass. The use of N doses in topdressing increased plant heights and grain yield. The plant growth regulator did not interfere with the milling yield of upland rice. Nitrogen fertilization in the topdressing did not interfere with the milling yield of upland rice irrigated by a sprinkler system.O acamamento das plantas de arroz aumenta sensivelmente as perdas dessa cultura, que é ocasionado pelo fornecimento de água e fertilizantes, principalmente os nitrogenados, manejados de forma inadequada. O uso de reguladores vegetais propicia redução na altura de plantas e consequentemente no acamamento, podendo minimizar as perdas na colheita. O objetivo foi avaliar doses de nitrogênio (N) com e sem a aplicação de regulador vegetal em arroz de terras altas irrigado por aspersão. O delineamento experimental utilizado foi o de blocos casualizados, disposto em esquema fatorial 4 × 2, com quatro repetições. Os tratamentos foram constituídos por quatro doses de N em cobertura (0, 40, 80 e 120 kg ha-1) combinadas com ou sem aplicação de regulador vegetal. A aplicação de 150 g ha-1 de etil-trinexapac, por ocasião da diferenciação floral, reduz a altura de plantas e o acamamento, e promove aumento da massa de 100 grãos. O uso de doses de N em cobertura aumenta a altura de plantas e incrementa a produtividade de grãos. O regulador vegetal interfere pouco no rendimento de engenho do arroz de terras altas. A adubação nitrogenada em cobertura praticamente não interfere no rendimento de engenho do arroz de terras altas irrigado por aspersão.UEL2019-08-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3289310.5433/1679-0359.2019v40n5Supl1p2137Semina: Ciências Agrárias; Vol. 40 No. 5Supl1 (2019); 2137-2150Semina: Ciências Agrárias; v. 40 n. 5Supl1 (2019); 2137-21501679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32893/25836Copyright (c) 2019 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessPeron, Igor Balbi GuirãoPortugal, José RobertoArf, OrivaldoRodrigues, Ricardo Antônio FerreiraGitti, Douglas de Castilho2022-10-18T15:49:27Zoai:ojs.pkp.sfu.ca:article/32893Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-18T15:49:27Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
Fornecimento de nitrogênio associado a aplicação de etil-trinexapac em arroz de terras altas irrigado por aspersão
title Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
spellingShingle Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
Peron, Igor Balbi Guirão
Oryza sativa L
Lodging
Nitrogen fertilization
Plant growth regulator.
Oryza sativa L
Acamamento
Adubação nitrogenada
Regulador vegetal.
title_short Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
title_full Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
title_fullStr Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
title_full_unstemmed Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
title_sort Nitrogen supply associated with the application of trinexapac-ethyl in upland rice irrigated by sprinkler
author Peron, Igor Balbi Guirão
author_facet Peron, Igor Balbi Guirão
Portugal, José Roberto
Arf, Orivaldo
Rodrigues, Ricardo Antônio Ferreira
Gitti, Douglas de Castilho
author_role author
author2 Portugal, José Roberto
Arf, Orivaldo
Rodrigues, Ricardo Antônio Ferreira
Gitti, Douglas de Castilho
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Peron, Igor Balbi Guirão
Portugal, José Roberto
Arf, Orivaldo
Rodrigues, Ricardo Antônio Ferreira
Gitti, Douglas de Castilho
dc.subject.por.fl_str_mv Oryza sativa L
Lodging
Nitrogen fertilization
Plant growth regulator.
Oryza sativa L
Acamamento
Adubação nitrogenada
Regulador vegetal.
topic Oryza sativa L
Lodging
Nitrogen fertilization
Plant growth regulator.
Oryza sativa L
Acamamento
Adubação nitrogenada
Regulador vegetal.
description The lodging of rice plants significantly increases the losses of this crop. Lodging is caused by the inadequate management of water and fertilizers, particularly nitrogenous fertilizers. The use of growth regulators causes a reduction in plant height and consequently lodging, and may reduce harvest losses. The objective of this study was to evaluate nitrogen (N) doses with and without application of plant growth regulator in upland rice irrigated by a sprinkler system. The experimental design consisted of randomized blocks arranged in a 4 × 2 factorial design with four replicates. The treatments consisted of four N doses (0, 40, 80, and 120 kg ha-1) combined with the presence or absence of foliar application of a plant growth regulator. The application of 150 g ha-1 of trinexapac-ethyl at the flower differentiation stage reduced plant height and lodging. In addition, this treatment promoted increased 100-grain mass. The use of N doses in topdressing increased plant heights and grain yield. The plant growth regulator did not interfere with the milling yield of upland rice. Nitrogen fertilization in the topdressing did not interfere with the milling yield of upland rice irrigated by a sprinkler system.
publishDate 2019
dc.date.none.fl_str_mv 2019-08-07
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32893
10.5433/1679-0359.2019v40n5Supl1p2137
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32893
identifier_str_mv 10.5433/1679-0359.2019v40n5Supl1p2137
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32893/25836
dc.rights.driver.fl_str_mv Copyright (c) 2019 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 40 No. 5Supl1 (2019); 2137-2150
Semina: Ciências Agrárias; v. 40 n. 5Supl1 (2019); 2137-2150
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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