EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS

Detalhes bibliográficos
Autor(a) principal: Ramos, M. F. T. [UNESP]
Data de Publicação: 2019
Outros Autores: Santos, R. T. S. [UNESP], Almeida, D. P. [UNESP], Vechia, J. F. D. [UNESP], Ferreira, M. C. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-83582019370100075
http://hdl.handle.net/11449/194833
Resumo: The addition of adjuvants to herbicide solutions is aimed at preserving or enhancing the biological effect of treatment. However, it is commonly performed without knowledge of the physicochemical interactions between products. This study aimed to assess the effects of different addition sequences of the herbicide aminopyralid + fluroxypyr and adjuvants in the preparation of phytosanitary spray solutions on the surface tension and contact angle. Two experiments were carried out with herbicide doses of 1 and 2 L ha(-1) associated with the adjuvants mineral oil (MO), silicone-polyether copolymer (S1L), and a mixture of phosphatidylcholine (lectin) and propionic acid (LEC), all at a proportion of 0.3% v v(-1). The application rate was 150 L ha(-1). Surface tension was measured by the pendant droplet method. Contact angle was measured on the adaxial and abaxial surfaces of leaves of the pasture weed Senna obtusifolia and parafilm. Preparation sequence did not change the contact angle on any of the analyzed surfaces at a dose of 1 L ha(-1) of herbicide. For the dose of 2 L ha(-1), the adjuvants SIL and LEC showed a higher spreading when previously added to the herbicide. MO resulted in a higher spreading when added after the herbicide, with higher surface coverage. Therefore, the preparation sequence influences the dispersion of phytosanitary spray solutions on targets.
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spelling EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONSadjuvantspreparation sequenceSenna obtusifoliaThe addition of adjuvants to herbicide solutions is aimed at preserving or enhancing the biological effect of treatment. However, it is commonly performed without knowledge of the physicochemical interactions between products. This study aimed to assess the effects of different addition sequences of the herbicide aminopyralid + fluroxypyr and adjuvants in the preparation of phytosanitary spray solutions on the surface tension and contact angle. Two experiments were carried out with herbicide doses of 1 and 2 L ha(-1) associated with the adjuvants mineral oil (MO), silicone-polyether copolymer (S1L), and a mixture of phosphatidylcholine (lectin) and propionic acid (LEC), all at a proportion of 0.3% v v(-1). The application rate was 150 L ha(-1). Surface tension was measured by the pendant droplet method. Contact angle was measured on the adaxial and abaxial surfaces of leaves of the pasture weed Senna obtusifolia and parafilm. Preparation sequence did not change the contact angle on any of the analyzed surfaces at a dose of 1 L ha(-1) of herbicide. For the dose of 2 L ha(-1), the adjuvants SIL and LEC showed a higher spreading when previously added to the herbicide. MO resulted in a higher spreading when added after the herbicide, with higher surface coverage. Therefore, the preparation sequence influences the dispersion of phytosanitary spray solutions on targets.Univ Estadual Paulista, Sao Paulo, SP, BrazilUniv Estadual Paulista, Sao Paulo, SP, BrazilUniv Federal VicosaUniversidade Estadual Paulista (Unesp)Ramos, M. F. T. [UNESP]Santos, R. T. S. [UNESP]Almeida, D. P. [UNESP]Vechia, J. F. D. [UNESP]Ferreira, M. C. [UNESP]2020-12-10T16:55:57Z2020-12-10T16:55:57Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1590/S0100-83582019370100075Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.0100-8358http://hdl.handle.net/11449/19483310.1590/S0100-83582019370100075S0100-83582019000100273WOS:000485704500001S0100-83582019000100273.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninhainfo:eu-repo/semantics/openAccess2023-10-21T06:04:59Zoai:repositorio.unesp.br:11449/194833Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:30:26.919482Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
title EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
spellingShingle EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
Ramos, M. F. T. [UNESP]
adjuvants
preparation sequence
Senna obtusifolia
title_short EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
title_full EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
title_fullStr EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
title_full_unstemmed EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
title_sort EFFECT OF PESTICIDE ADDITION SEQUENCE ON THE PREPARATION OF PHYTOSANITARY SPRAY SOLUTIONS
author Ramos, M. F. T. [UNESP]
author_facet Ramos, M. F. T. [UNESP]
Santos, R. T. S. [UNESP]
Almeida, D. P. [UNESP]
Vechia, J. F. D. [UNESP]
Ferreira, M. C. [UNESP]
author_role author
author2 Santos, R. T. S. [UNESP]
Almeida, D. P. [UNESP]
Vechia, J. F. D. [UNESP]
Ferreira, M. C. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Ramos, M. F. T. [UNESP]
Santos, R. T. S. [UNESP]
Almeida, D. P. [UNESP]
Vechia, J. F. D. [UNESP]
Ferreira, M. C. [UNESP]
dc.subject.por.fl_str_mv adjuvants
preparation sequence
Senna obtusifolia
topic adjuvants
preparation sequence
Senna obtusifolia
description The addition of adjuvants to herbicide solutions is aimed at preserving or enhancing the biological effect of treatment. However, it is commonly performed without knowledge of the physicochemical interactions between products. This study aimed to assess the effects of different addition sequences of the herbicide aminopyralid + fluroxypyr and adjuvants in the preparation of phytosanitary spray solutions on the surface tension and contact angle. Two experiments were carried out with herbicide doses of 1 and 2 L ha(-1) associated with the adjuvants mineral oil (MO), silicone-polyether copolymer (S1L), and a mixture of phosphatidylcholine (lectin) and propionic acid (LEC), all at a proportion of 0.3% v v(-1). The application rate was 150 L ha(-1). Surface tension was measured by the pendant droplet method. Contact angle was measured on the adaxial and abaxial surfaces of leaves of the pasture weed Senna obtusifolia and parafilm. Preparation sequence did not change the contact angle on any of the analyzed surfaces at a dose of 1 L ha(-1) of herbicide. For the dose of 2 L ha(-1), the adjuvants SIL and LEC showed a higher spreading when previously added to the herbicide. MO resulted in a higher spreading when added after the herbicide, with higher surface coverage. Therefore, the preparation sequence influences the dispersion of phytosanitary spray solutions on targets.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
2020-12-10T16:55:57Z
2020-12-10T16:55:57Z
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/S0100-83582019370100075
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.
0100-8358
http://hdl.handle.net/11449/194833
10.1590/S0100-83582019370100075
S0100-83582019000100273
WOS:000485704500001
S0100-83582019000100273.pdf
url http://dx.doi.org/10.1590/S0100-83582019370100075
http://hdl.handle.net/11449/194833
identifier_str_mv Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.
0100-8358
10.1590/S0100-83582019370100075
S0100-83582019000100273
WOS:000485704500001
S0100-83582019000100273.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Planta Daninha
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8
application/pdf
dc.publisher.none.fl_str_mv Univ Federal Vicosa
publisher.none.fl_str_mv Univ Federal Vicosa
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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