Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles

Detalhes bibliográficos
Autor(a) principal: Alves, Guilherme Sousa
Data de Publicação: 2018
Outros Autores: Kruger, Greg Robert, Cunha, João Paulo Arantes Rodrigues da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/25993
Resumo: The objective of this work was to evaluate the spray drift and droplet spectrum of dicamba applied alone or with potential drift-reducing adjuvants, using air-induction flat fan nozzles. Standard (XR and TT) and air-induction (AIXR and TTI) nozzles were evaluated in a wind tunnel. The adjuvants used were polymer, ammonium sulfate, vegetable oil, and phosphatidylcholine. The applications were conducted at 276 kPa pressure and 3.5 m s-1 wind speed. The droplet spectrum was measured using a laser diffraction system. Round strings were used as drift collectors, positioned perpendicularly to the wind direction, at 2, 3, 4, 5, 6, 7, and 12 m from the nozzle. Drift was calculated by quantifying, through fluorimetry, a fluorescent tracer added to each solution at 1 g L-1. Droplet spectrum and dicamba drift depend on the interaction between spray composition and nozzle type. Air-induction nozzles are more recommended for dicamba applications, especially the TTI nozzle. Polymer and ammonium sulfate increase droplet size in all nozzle types, which may reduce drift to nearby crops.
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spelling Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzlesDeriva e espectro de gotas de dicamba pulverizado, com ou sem adjuvantes, com uso de pontas com indução de arair-induction nozzle; droplet size; herbicide drift; nozzle type; wind tunnelponta com indução de ar; tamanho de gota; deriva de herbicida; tipo de ponta de pulverização; túnel de ventoThe objective of this work was to evaluate the spray drift and droplet spectrum of dicamba applied alone or with potential drift-reducing adjuvants, using air-induction flat fan nozzles. Standard (XR and TT) and air-induction (AIXR and TTI) nozzles were evaluated in a wind tunnel. The adjuvants used were polymer, ammonium sulfate, vegetable oil, and phosphatidylcholine. The applications were conducted at 276 kPa pressure and 3.5 m s-1 wind speed. The droplet spectrum was measured using a laser diffraction system. Round strings were used as drift collectors, positioned perpendicularly to the wind direction, at 2, 3, 4, 5, 6, 7, and 12 m from the nozzle. Drift was calculated by quantifying, through fluorimetry, a fluorescent tracer added to each solution at 1 g L-1. Droplet spectrum and dicamba drift depend on the interaction between spray composition and nozzle type. Air-induction nozzles are more recommended for dicamba applications, especially the TTI nozzle. Polymer and ammonium sulfate increase droplet size in all nozzle types, which may reduce drift to nearby crops.O objetivo deste trabalho foi avaliar a deriva e o espectro de gotas provenientes de aplicações de dicamba, com ou sem adjuvantes com potencial de redução de deriva, com uso de pontas de jato plano com indução de ar. Foram avaliadas pontas-padrão (XR e TT) e pontas com indução de ar (AIXR e TTI) em túnel de vento. Os adjuvantes usados foram polímero, sulfato de amônio, óleo vegetal e fosfatidilcoline. As aplicações foram feitas à pressão de 276 kPa e à velocidade do vento de 3,5 m s-1. O espectro de gotas foi avaliado por um sistema de difração a laser. Fios de nylon foram usados como coletores de deriva, posicionados transversalmente à direção do vento, a 2, 3, 4, 5, 6, 7 e 12 m da ponta de pulverização. A deriva foi calculada pela quantificação, por fluorimetria, de um corante fluorescente adicionado à calda à concentração de 1 g L-1. O espectro de gotas e a deriva de dicamba dependem da interação entre a composição da calda e o tipo de ponta de pulverização utilizada. Pontas de pulverização com indução de ar são mais recomendadas nas aplicações de dicamba, especialmente a ponta TTI. O polímero e o sulfato de amônio aumentam o tamanho das gotas em todos os tipos de pontas, o que pode reduzir a deriva para culturas adjacentes.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCoordenação para o Aperfeiçoamento de Pessoal de Nível Superior (Capes)the research group of Pesticide Application Technology LaboratoryAlves, Guilherme SousaKruger, Greg RobertCunha, João Paulo Arantes Rodrigues da2018-08-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/25993Pesquisa Agropecuaria Brasileira; v.53, n.6, jun. 2018; 693-702Pesquisa Agropecuária Brasileira; v.53, n.6, jun. 2018; 693-7021678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/25993/14221https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25993/17798Direitos autorais 2018 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2018-08-23T17:20:07Zoai:ojs.seer.sct.embrapa.br:article/25993Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2018-08-23T17:20:07Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
Deriva e espectro de gotas de dicamba pulverizado, com ou sem adjuvantes, com uso de pontas com indução de ar
title Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
spellingShingle Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
Alves, Guilherme Sousa
air-induction nozzle; droplet size; herbicide drift; nozzle type; wind tunnel
ponta com indução de ar; tamanho de gota; deriva de herbicida; tipo de ponta de pulverização; túnel de vento
title_short Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
title_full Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
title_fullStr Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
title_full_unstemmed Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
title_sort Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles
author Alves, Guilherme Sousa
author_facet Alves, Guilherme Sousa
Kruger, Greg Robert
Cunha, João Paulo Arantes Rodrigues da
author_role author
author2 Kruger, Greg Robert
Cunha, João Paulo Arantes Rodrigues da
author2_role author
author
dc.contributor.none.fl_str_mv Coordenação para o Aperfeiçoamento de Pessoal de Nível Superior (Capes)
the research group of Pesticide Application Technology Laboratory
dc.contributor.author.fl_str_mv Alves, Guilherme Sousa
Kruger, Greg Robert
Cunha, João Paulo Arantes Rodrigues da
dc.subject.por.fl_str_mv air-induction nozzle; droplet size; herbicide drift; nozzle type; wind tunnel
ponta com indução de ar; tamanho de gota; deriva de herbicida; tipo de ponta de pulverização; túnel de vento
topic air-induction nozzle; droplet size; herbicide drift; nozzle type; wind tunnel
ponta com indução de ar; tamanho de gota; deriva de herbicida; tipo de ponta de pulverização; túnel de vento
description The objective of this work was to evaluate the spray drift and droplet spectrum of dicamba applied alone or with potential drift-reducing adjuvants, using air-induction flat fan nozzles. Standard (XR and TT) and air-induction (AIXR and TTI) nozzles were evaluated in a wind tunnel. The adjuvants used were polymer, ammonium sulfate, vegetable oil, and phosphatidylcholine. The applications were conducted at 276 kPa pressure and 3.5 m s-1 wind speed. The droplet spectrum was measured using a laser diffraction system. Round strings were used as drift collectors, positioned perpendicularly to the wind direction, at 2, 3, 4, 5, 6, 7, and 12 m from the nozzle. Drift was calculated by quantifying, through fluorimetry, a fluorescent tracer added to each solution at 1 g L-1. Droplet spectrum and dicamba drift depend on the interaction between spray composition and nozzle type. Air-induction nozzles are more recommended for dicamba applications, especially the TTI nozzle. Polymer and ammonium sulfate increase droplet size in all nozzle types, which may reduce drift to nearby crops.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-23
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/25993
url https://seer.sct.embrapa.br/index.php/pab/article/view/25993
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/25993/14221
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25993/17798
dc.rights.driver.fl_str_mv Direitos autorais 2018 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2018 Pesquisa Agropecuária Brasileira
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.53, n.6, jun. 2018; 693-702
Pesquisa Agropecuária Brasileira; v.53, n.6, jun. 2018; 693-702
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416699499773952

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