SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/5583 |
Resumo: | Weed control is essential to reduce or eliminate the interference of weeds on crops. Chemical control with the application of herbicides consists of the most used method, with this aim in grain producing areas. Information about the selectivity of herbicides to C. spectabilis (showy crotalaria) are scarce, which are critical for the management of this species as a crop. One field experiment was performed to evaluate the selectivity of herbicides applied in post-emergence of showy crotalaria. The herbicides bentazon (720 and 576 g ha-1), imazethapyr (106 and 79.5 g ha-1), pyrithiobac-sodium (84 g ha-1), flumiclorac (60 g ha-1), flumiclorac in sequential application (30 / 30 g ha-1), imazethapyr + bentazon (106 + 480 g ha-1), and clethodim + quizalofop (96 + 100 g ha-1) were applied in plants with four true leaves, also using a control without herbicide application. Pyrithiobac-sodium and flumiclorac isolated and the tankmix of imazethapyr + bentazon provided greater injuries to showy crotalaria, also affecting the final plant height. Pyrithiobac-sodium (84 g ha-1) was not selective to showy crotalaria. The herbicides imazethapyr (79.5 g ha-1), flumiclorac (sequential application), and bentazon (576 g ha-1), despite the association between clethodim + quizalofop, can be used for weed management in showy crotalaria crop. |
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SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIASELETIVIDADE DE HERBICIDAS APLICADOS EM PÓS-EMERGÊNCIA DA CROTALÁRIACrotalaria spectabilis. Cover crops. Intoxication by herbicides. Weed management.Crotalaria spectabilis. Culturas de cobertura. Intoxicação por herbicidas. Manejo de plantas daninhas.Weed control is essential to reduce or eliminate the interference of weeds on crops. Chemical control with the application of herbicides consists of the most used method, with this aim in grain producing areas. Information about the selectivity of herbicides to C. spectabilis (showy crotalaria) are scarce, which are critical for the management of this species as a crop. One field experiment was performed to evaluate the selectivity of herbicides applied in post-emergence of showy crotalaria. The herbicides bentazon (720 and 576 g ha-1), imazethapyr (106 and 79.5 g ha-1), pyrithiobac-sodium (84 g ha-1), flumiclorac (60 g ha-1), flumiclorac in sequential application (30 / 30 g ha-1), imazethapyr + bentazon (106 + 480 g ha-1), and clethodim + quizalofop (96 + 100 g ha-1) were applied in plants with four true leaves, also using a control without herbicide application. Pyrithiobac-sodium and flumiclorac isolated and the tankmix of imazethapyr + bentazon provided greater injuries to showy crotalaria, also affecting the final plant height. Pyrithiobac-sodium (84 g ha-1) was not selective to showy crotalaria. The herbicides imazethapyr (79.5 g ha-1), flumiclorac (sequential application), and bentazon (576 g ha-1), despite the association between clethodim + quizalofop, can be used for weed management in showy crotalaria crop.O manejo de plantas daninhas é prática fundamental para reduzir ou eliminar a interferência da comunidade infestante sobre a espécie cultivada. O método de controle químico, por meio da aplicação de herbicidas, consiste no mais utilizado com esta finalidade em áreas de produção de larga escala. Informações de seletividade de herbicidas para C. spectabilis (crotalária) são escassas, sendo estas de suma importância para o manejo desta espécie como cultura. Um experimento de campo foi realizado para avaliar a seletividade de herbicidas aplicados em pós-emergência na crotalária. Os herbicidas bentazon (720 e 576 g ha-1), imazethapyr (106 e 79,5 g ha-1), pyrithiobac-sodium (84 g ha-1), flumiclorac (60 g ha-1), flumiclorac em aplicação sequencial (30 / 30 g ha-1), imazethapyr + bentazon (106 + 480 g ha-1), clethodim + quizalofop (96 + 100 g ha-1) foram aplicados sob plantas com quatro folhas verdadeiras, constando também entre os tratamentos testemunha sem aplicação de herbicidas. Pyrithiobac-sodium e flumiclorac isolados e a mistura entre imazethapyr + bentazon proporcionaram maiores injúrias a crotalária, afetando também a altura final das plantas. O pyrithiobac-sodium (84 g ha-1) não foi seletivo para a crotalária. Os herbicidas imazethapyr (79,5 g ha-1), flumiclorac (em aplicação sequencial), bentazon (576 g ha-1), além da associação entre clethodim + quizalofop podem ser utilizados para o manejo de plantas daninhas na cultura da crotalária.Universidade Federal Rural do Semi-Árido2016-09-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/558310.1590/1983-21252016v29n417rcREVISTA CAATINGA; Vol. 29 No. 4 (2016); 918-926Revista Caatinga; v. 29 n. 4 (2016); 918-9261983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/5583/pdfBraz, Guilherme Braga PereiraOliveira Júnior, Rubem Silvério deConstantin, JamilTakano, Hudson KagueyamaGodinho, Fernanda Brunettainfo:eu-repo/semantics/openAccess2023-07-19T18:52:15Zoai:ojs.periodicos.ufersa.edu.br:article/5583Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:23.021619Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA SELETIVIDADE DE HERBICIDAS APLICADOS EM PÓS-EMERGÊNCIA DA CROTALÁRIA |
title |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA |
spellingShingle |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA Braz, Guilherme Braga Pereira Crotalaria spectabilis. Cover crops. Intoxication by herbicides. Weed management. Crotalaria spectabilis. Culturas de cobertura. Intoxicação por herbicidas. Manejo de plantas daninhas. |
title_short |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA |
title_full |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA |
title_fullStr |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA |
title_full_unstemmed |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA |
title_sort |
SELECTIVITY OF HERBICIDES APPLIED IN POST-EMERGENCE OF SHOWY CROTALARIA |
author |
Braz, Guilherme Braga Pereira |
author_facet |
Braz, Guilherme Braga Pereira Oliveira Júnior, Rubem Silvério de Constantin, Jamil Takano, Hudson Kagueyama Godinho, Fernanda Brunetta |
author_role |
author |
author2 |
Oliveira Júnior, Rubem Silvério de Constantin, Jamil Takano, Hudson Kagueyama Godinho, Fernanda Brunetta |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Braz, Guilherme Braga Pereira Oliveira Júnior, Rubem Silvério de Constantin, Jamil Takano, Hudson Kagueyama Godinho, Fernanda Brunetta |
dc.subject.por.fl_str_mv |
Crotalaria spectabilis. Cover crops. Intoxication by herbicides. Weed management. Crotalaria spectabilis. Culturas de cobertura. Intoxicação por herbicidas. Manejo de plantas daninhas. |
topic |
Crotalaria spectabilis. Cover crops. Intoxication by herbicides. Weed management. Crotalaria spectabilis. Culturas de cobertura. Intoxicação por herbicidas. Manejo de plantas daninhas. |
description |
Weed control is essential to reduce or eliminate the interference of weeds on crops. Chemical control with the application of herbicides consists of the most used method, with this aim in grain producing areas. Information about the selectivity of herbicides to C. spectabilis (showy crotalaria) are scarce, which are critical for the management of this species as a crop. One field experiment was performed to evaluate the selectivity of herbicides applied in post-emergence of showy crotalaria. The herbicides bentazon (720 and 576 g ha-1), imazethapyr (106 and 79.5 g ha-1), pyrithiobac-sodium (84 g ha-1), flumiclorac (60 g ha-1), flumiclorac in sequential application (30 / 30 g ha-1), imazethapyr + bentazon (106 + 480 g ha-1), and clethodim + quizalofop (96 + 100 g ha-1) were applied in plants with four true leaves, also using a control without herbicide application. Pyrithiobac-sodium and flumiclorac isolated and the tankmix of imazethapyr + bentazon provided greater injuries to showy crotalaria, also affecting the final plant height. Pyrithiobac-sodium (84 g ha-1) was not selective to showy crotalaria. The herbicides imazethapyr (79.5 g ha-1), flumiclorac (sequential application), and bentazon (576 g ha-1), despite the association between clethodim + quizalofop, can be used for weed management in showy crotalaria crop. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-13 |
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://periodicos.ufersa.edu.br/caatinga/article/view/5583 10.1590/1983-21252016v29n417rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/5583 |
identifier_str_mv |
10.1590/1983-21252016v29n417rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/5583/pdf |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 29 No. 4 (2016); 918-926 Revista Caatinga; v. 29 n. 4 (2016); 918-926 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674026018013184 |