INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
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.v40n1p69-77/2020 http://hdl.handle.net/11449/195211 |
Resumo: | The herbicide glyphosate is sprayed with varying application volumes that result in different concentrations used in the spray solutions. Thus, this study aimed to evaluate the effect of glyphosate concentrations on the potential risk of droplet drift, surface tension of spray solution, and contact angle of droplets on surfaces. Three experiments were conducted in a completely randomized design. Drift potential was evaluated by median volumetric diameter (MVD), percentage volume of droplets with diameter smaller than 100 mu m (%V<100 mu m), and coefficient of uniformity (Span), with 12 replications. The surface tension of spray solutions and contact angle of droplets were evaluated on Urochloa ruziziensis leaves, paraffin film, and glass, with four replications. Changing glyphosate concentrations in the spray solution changes the droplet spectrum and contact angle on different surfaces due to changes in spray solution physicochemical characteristics, such as surface tension. The increased glyphosate concentrations in the spray solution lead to increased drift potential of droplets, reducing the surface tension and contact angle of droplets on surfaces. |
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INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIALsurface tensioncontact angledropletsMVDCongo grassThe herbicide glyphosate is sprayed with varying application volumes that result in different concentrations used in the spray solutions. Thus, this study aimed to evaluate the effect of glyphosate concentrations on the potential risk of droplet drift, surface tension of spray solution, and contact angle of droplets on surfaces. Three experiments were conducted in a completely randomized design. Drift potential was evaluated by median volumetric diameter (MVD), percentage volume of droplets with diameter smaller than 100 mu m (%V<100 mu m), and coefficient of uniformity (Span), with 12 replications. The surface tension of spray solutions and contact angle of droplets were evaluated on Urochloa ruziziensis leaves, paraffin film, and glass, with four replications. Changing glyphosate concentrations in the spray solution changes the droplet spectrum and contact angle on different surfaces due to changes in spray solution physicochemical characteristics, such as surface tension. The increased glyphosate concentrations in the spray solution lead to increased drift potential of droplets, reducing the surface tension and contact angle of droplets on surfaces.COMIGO Inst Sci & Technol, Rio Verde, Go, BrazilPaulista State Univ Julio de Mesquita Filho, Jaboticabal, SP, BrazilJacto, Pompeia, SP, BrazilFed Univ Jatai, Jatai, Go, BrazilPaulista State Univ Julio de Mesquita Filho, Jaboticabal, SP, BrazilSoc Brasil Engenharia AgricolaCOMIGO Inst Sci & TechnolUniversidade Estadual Paulista (Unesp)JactoFed Univ JataiAlmeida, Dieimisson P.Ferreira, Marcelo da C. [UNESP]Santos, Renata T. da S. [UNESP]Griesang, FabianoSantos, Eduardo de S. dos [UNESP]Timossi, Paulo C.2020-12-10T17:26:57Z2020-12-10T17:26:57Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article69-77application/pdfhttp://dx.doi.org/10.1590/1809-4430-Eng.Agric.v40n1p69-77/2020Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 40, n. 1, p. 69-77, 2020.0100-6916http://hdl.handle.net/11449/19521110.1590/1809-4430-Eng.Agric.v40n1p69-77/2020S0100-69162020000100069WOS:000514817400009S0100-69162020000100069.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEngenharia Agricolainfo:eu-repo/semantics/openAccess2024-01-20T06:36:50Zoai:repositorio.unesp.br:11449/195211Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-20T06:36:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
title |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
spellingShingle |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL Almeida, Dieimisson P. surface tension contact angle droplets MVD Congo grass |
title_short |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
title_full |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
title_fullStr |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
title_full_unstemmed |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
title_sort |
INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL |
author |
Almeida, Dieimisson P. |
author_facet |
Almeida, Dieimisson P. Ferreira, Marcelo da C. [UNESP] Santos, Renata T. da S. [UNESP] Griesang, Fabiano Santos, Eduardo de S. dos [UNESP] Timossi, Paulo C. |
author_role |
author |
author2 |
Ferreira, Marcelo da C. [UNESP] Santos, Renata T. da S. [UNESP] Griesang, Fabiano Santos, Eduardo de S. dos [UNESP] Timossi, Paulo C. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
COMIGO Inst Sci & Technol Universidade Estadual Paulista (Unesp) Jacto Fed Univ Jatai |
dc.contributor.author.fl_str_mv |
Almeida, Dieimisson P. Ferreira, Marcelo da C. [UNESP] Santos, Renata T. da S. [UNESP] Griesang, Fabiano Santos, Eduardo de S. dos [UNESP] Timossi, Paulo C. |
dc.subject.por.fl_str_mv |
surface tension contact angle droplets MVD Congo grass |
topic |
surface tension contact angle droplets MVD Congo grass |
description |
The herbicide glyphosate is sprayed with varying application volumes that result in different concentrations used in the spray solutions. Thus, this study aimed to evaluate the effect of glyphosate concentrations on the potential risk of droplet drift, surface tension of spray solution, and contact angle of droplets on surfaces. Three experiments were conducted in a completely randomized design. Drift potential was evaluated by median volumetric diameter (MVD), percentage volume of droplets with diameter smaller than 100 mu m (%V<100 mu m), and coefficient of uniformity (Span), with 12 replications. The surface tension of spray solutions and contact angle of droplets were evaluated on Urochloa ruziziensis leaves, paraffin film, and glass, with four replications. Changing glyphosate concentrations in the spray solution changes the droplet spectrum and contact angle on different surfaces due to changes in spray solution physicochemical characteristics, such as surface tension. The increased glyphosate concentrations in the spray solution lead to increased drift potential of droplets, reducing the surface tension and contact angle of droplets on surfaces. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-10T17:26:57Z 2020-12-10T17:26:57Z 2020-01-01 |
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.v40n1p69-77/2020 Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 40, n. 1, p. 69-77, 2020. 0100-6916 http://hdl.handle.net/11449/195211 10.1590/1809-4430-Eng.Agric.v40n1p69-77/2020 S0100-69162020000100069 WOS:000514817400009 S0100-69162020000100069.pdf |
url |
http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v40n1p69-77/2020 http://hdl.handle.net/11449/195211 |
identifier_str_mv |
Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 40, n. 1, p. 69-77, 2020. 0100-6916 10.1590/1809-4430-Eng.Agric.v40n1p69-77/2020 S0100-69162020000100069 WOS:000514817400009 S0100-69162020000100069.pdf |
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 |
69-77 application/pdf |
dc.publisher.none.fl_str_mv |
Soc Brasil Engenharia Agricola |
publisher.none.fl_str_mv |
Soc Brasil Engenharia Agricola |
dc.source.none.fl_str_mv |
Web of Science 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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1803047383323377664 |