INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE

Detalhes bibliográficos
Autor(a) principal: Oliveira, Osmar G. T. M. [UNESP]
Data de Publicação: 2021
Outros Autores: Lopes, Paulo R. M. [UNESP], Raetano, Carlos G. [UNESP], Lima, Ronaldo C. [UNESP], Prado, Evandro P. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v41n4p449-457/2021
http://hdl.handle.net/11449/233643
Resumo: Droplet size is one of the most important factors that affect spray deposition and weed control through the use of herbicides. The aim of this study was to evaluate the influence of the droplet size on the spray deposition and control of Euphorbia heterophylla and Urochloa ruziziensis by using glyphosate. The treatments included spraying glyphosate with fine, medium, coarse, very coarse, and ultra-coarse droplet sizes to determine the deposition, uniformity of distribution, visual control, and dry weight reduction (DWR). The treatments were compared with the values of the dose required to achieve 50% DWR or 50% visual control (C50) at 7, 14, 21, and 28 days after herbicide application. Fine and medium droplet sizes afforded high deposition values and low distribution uniformities in E. heterophylla. Fine and medium droplet sizes yielded the lowest C50 on visual control and DWR in E. heterophylla, respectively. The droplet size did not affect the spray deposition on U. ruziziensis plants; however, the larger droplets had less uniformity of distribution. In U. ruziziensis plants, spraying glyphosate with coarse and medium droplet sizes yielded the lowest values of C50 to visual control and DWR, respectively.
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spelling INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATEapplication technologychemical controldose responsespray depositsDroplet size is one of the most important factors that affect spray deposition and weed control through the use of herbicides. The aim of this study was to evaluate the influence of the droplet size on the spray deposition and control of Euphorbia heterophylla and Urochloa ruziziensis by using glyphosate. The treatments included spraying glyphosate with fine, medium, coarse, very coarse, and ultra-coarse droplet sizes to determine the deposition, uniformity of distribution, visual control, and dry weight reduction (DWR). The treatments were compared with the values of the dose required to achieve 50% DWR or 50% visual control (C50) at 7, 14, 21, and 28 days after herbicide application. Fine and medium droplet sizes afforded high deposition values and low distribution uniformities in E. heterophylla. Fine and medium droplet sizes yielded the lowest C50 on visual control and DWR in E. heterophylla, respectively. The droplet size did not affect the spray deposition on U. ruziziensis plants; however, the larger droplets had less uniformity of distribution. In U. ruziziensis plants, spraying glyphosate with coarse and medium droplet sizes yielded the lowest values of C50 to visual control and DWR, respectively.Universidade Estadual Paulista “Júlio de Mesquita Filho” Faculdade de EngenhariaUniversidade Estadual Paulista “Júlio de Mesquita Filho” Faculdade de Ciências Agrárias e TecnológicasUniversidade Estadual Paulista “Júlio de Mesquita Filho” Faculdade de Ciências AgronômicasUniversidade Estadual Paulista “Júlio de Mesquita Filho” Faculdade de EngenhariaUniversidade Estadual Paulista “Júlio de Mesquita Filho” Faculdade de Ciências Agrárias e TecnológicasUniversidade Estadual Paulista “Júlio de Mesquita Filho” Faculdade de Ciências AgronômicasUniversidade Estadual Paulista (UNESP)Oliveira, Osmar G. T. M. [UNESP]Lopes, Paulo R. M. [UNESP]Raetano, Carlos G. [UNESP]Lima, Ronaldo C. [UNESP]Prado, Evandro P. [UNESP]2022-05-01T09:31:05Z2022-05-01T09:31:05Z2021-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article449-457http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v41n4p449-457/2021Engenharia Agricola, v. 41, n. 4, p. 449-457, 2021.1808-43890100-6916http://hdl.handle.net/11449/23364310.1590/1809-4430-Eng.Agric.v41n4p449-457/20212-s2.0-85116773011Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEngenharia Agricolainfo:eu-repo/semantics/openAccess2024-05-07T13:47:04Zoai:repositorio.unesp.br:11449/233643Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:17:43.170397Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
title INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
spellingShingle INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
Oliveira, Osmar G. T. M. [UNESP]
application technology
chemical control
dose response
spray deposits
title_short INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
title_full INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
title_fullStr INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
title_full_unstemmed INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
title_sort INFLUENCE OF DROPLET SIZE ON SPRAY DEPOSITION AND WEED CONTROL USING GLYPHOSATE
author Oliveira, Osmar G. T. M. [UNESP]
author_facet Oliveira, Osmar G. T. M. [UNESP]
Lopes, Paulo R. M. [UNESP]
Raetano, Carlos G. [UNESP]
Lima, Ronaldo C. [UNESP]
Prado, Evandro P. [UNESP]
author_role author
author2 Lopes, Paulo R. M. [UNESP]
Raetano, Carlos G. [UNESP]
Lima, Ronaldo C. [UNESP]
Prado, Evandro P. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Oliveira, Osmar G. T. M. [UNESP]
Lopes, Paulo R. M. [UNESP]
Raetano, Carlos G. [UNESP]
Lima, Ronaldo C. [UNESP]
Prado, Evandro P. [UNESP]
dc.subject.por.fl_str_mv application technology
chemical control
dose response
spray deposits
topic application technology
chemical control
dose response
spray deposits
description Droplet size is one of the most important factors that affect spray deposition and weed control through the use of herbicides. The aim of this study was to evaluate the influence of the droplet size on the spray deposition and control of Euphorbia heterophylla and Urochloa ruziziensis by using glyphosate. The treatments included spraying glyphosate with fine, medium, coarse, very coarse, and ultra-coarse droplet sizes to determine the deposition, uniformity of distribution, visual control, and dry weight reduction (DWR). The treatments were compared with the values of the dose required to achieve 50% DWR or 50% visual control (C50) at 7, 14, 21, and 28 days after herbicide application. Fine and medium droplet sizes afforded high deposition values and low distribution uniformities in E. heterophylla. Fine and medium droplet sizes yielded the lowest C50 on visual control and DWR in E. heterophylla, respectively. The droplet size did not affect the spray deposition on U. ruziziensis plants; however, the larger droplets had less uniformity of distribution. In U. ruziziensis plants, spraying glyphosate with coarse and medium droplet sizes yielded the lowest values of C50 to visual control and DWR, respectively.
publishDate 2021
dc.date.none.fl_str_mv 2021-07-01
2022-05-01T09:31:05Z
2022-05-01T09:31:05Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v41n4p449-457/2021
Engenharia Agricola, v. 41, n. 4, p. 449-457, 2021.
1808-4389
0100-6916
http://hdl.handle.net/11449/233643
10.1590/1809-4430-Eng.Agric.v41n4p449-457/2021
2-s2.0-85116773011
url http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v41n4p449-457/2021
http://hdl.handle.net/11449/233643
identifier_str_mv Engenharia Agricola, v. 41, n. 4, p. 449-457, 2021.
1808-4389
0100-6916
10.1590/1809-4430-Eng.Agric.v41n4p449-457/2021
2-s2.0-85116773011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Engenharia Agricola
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 449-457
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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