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Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)

The sourgrass (Digitaria insularis) is a weed that is present in several agricultural crops and causes a significant reduction in productivity. In addition to already presenting resistance to some herbicides. The objective of the present work was to study the control effectiveness of different herbi...

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Autor principal: Torino, Mateus
Formato: Trabalho de Conclusão de Curso (Graduação)
Idioma: Português
Publicado em: Agronomia 2022
Assuntos:
Herbicidas
Ervas daninhas
Produtividade agrícola
Herbicides
Weeds
Agricultural productivity
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
Acesso em linha: http://repositorio.utfpr.edu.br/jspui/handle/1/30096
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spelling riut-1-300962022-11-17T06:07:09Z Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis) Herbicide application schedules for the control of sourgrass (Digitaria insularis) Torino, Mateus Moraes, Pedro Valério Dutra de Rey, Maristela dos Santos Jakubski, Juliana Domanski Moraes, Pedro Válerio Dutra de Herbicidas Ervas daninhas Produtividade agrícola Herbicides Weeds Agricultural productivity CNPQ::CIENCIAS AGRARIAS::AGRONOMIA The sourgrass (Digitaria insularis) is a weed that is present in several agricultural crops and causes a significant reduction in productivity. In addition to already presenting resistance to some herbicides. The objective of the present work was to study the control effectiveness of different herbicides, applied at different times, for the control of bitter grass. The experiment was carried out in pots at the experimental farm of the Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos, during the agricultural year of 2018/2019. As experimental units were used plastic pots of 12 kg of soil with 5 plants of bitter grass, kept in the field. The work was carried out with 13 treatments consisted of the herbicides clethodim, clodinafope, fluazifope-p-butyl and haloxyfop, all applied on 11/15/2018, at the hours of 6:00 a.m., 6:00 p.m., 0:00 a.m. and a witness without application. The experimental design was completely randomized (DIC), with four replications. The analyzed variables were phytotoxicity at 7, 14, 21 and 28 days after application (DAA), plant height at 28 DAA and dry mass at 28 DAA. The results showed that all the herbicides caused a certain degree of phytotoxicity on the plants, and the symptoms varied in the first evaluation at 7 DAA of very light for the herbicide Topik, moderate for the herbicides Fusilade and Verdict and very strong for the herbicide Select. In the last evaluation the observed symptoms were of strong for the Topik, very strong for the Fusilade, partial death of the plants for the Verdict and total death of the plants for the herbicide Select. It was concluded that among the tested herbicides, the herbicide Select was the most effective when controlling the weed, when it was applied at 6:00 p.m., followed by the 0:00 a.m. time. The second best was the herbicide Verdict applied regardless of the time. O capim amargoso (Digitaria insularis) é uma planta daninha que está presente em vários cultivos agrícolas e causa redução significativa na produtividade. Além de apresentar resistência a alguns herbicidas. O objetivo do presente trabalho foi estudar a eficácia de controle de herbicidas, aplicados em diferentes horários, para o controle do capim amargoso. O experimento foi realizado em vasos na fazenda experimental da Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos, durante o ano agrícola de 2018/2019. Foram utilizados como unidades experimentais vasos plásticos de 12 kg, preenchidos com solo local. Em cada vaso 5 plantas de capim amargoso, mantidas a campo. O trabalho foi realizado com os herbicidas clethodim, clodinafope, fluazifope-p-butílico e haloxifope, todos aplicados no dia 15/11/2018, nos horários de 6:00 h, 18:00 h, 0:00 h e uma testemunha sem aplicação. O delineamento experimental utilizando foi o inteiramente casualizado (DIC), em esquema bifatorial, com quatro repetições. As variáveis analisadas foram fitotoxicidade aos 7, 14, 21 e 28 dias após a aplicação (DAA), altura de plantas e massa seca aos 28 DAA. Os resultados obtidos mostram que todos os herbicidas causaram fitotoxicidade nas plantas, sendo que os sintomas variaram na primeira avaliação aos 7 DAA de muito leve para o herbicida Topik, moderado para os herbicidas Fusilade e Verdict e muito forte para o herbicida Select. Na última avaliação os sintomas observados foram de forte para o Topik, muito forte para o Fusilade, morte parcial das plantas para o Verdict e morte total das plantas para o herbicida Select. Conclui-se que, dentre os herbicidas testados o que apresentou maior eficácia no controle da planta daninha foi o herbicida Select quando aplicado as 18:00 h, seguido do horário da 0:00 h. O segundo melhor foi o herbicida Verdict aplicado independentemente do horário. 2022-11-16T18:54:49Z 2022-11-16T18:54:49Z 2019-06-24 bachelorThesis TORINO, Mateus. Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis). 2019. Trabalho de Conclusão de Curso (Bacharelado em Agronomia) - Universidade Tecnológica Federal do Paraná, Dois Vizinhos, 2019. http://repositorio.utfpr.edu.br/jspui/handle/1/30096 por openAccess application/pdf Agronomia Dois Vizinhos Brasil Universidade Tecnológica Federal do Paraná UTFPR
institution Universidade Tecnológica Federal do Paraná
collection RIUT
language Português
topic Herbicidas
Ervas daninhas
Produtividade agrícola
Herbicides
Weeds
Agricultural productivity
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
spellingShingle Herbicidas
Ervas daninhas
Produtividade agrícola
Herbicides
Weeds
Agricultural productivity
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
Torino, Mateus
Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)
description The sourgrass (Digitaria insularis) is a weed that is present in several agricultural crops and causes a significant reduction in productivity. In addition to already presenting resistance to some herbicides. The objective of the present work was to study the control effectiveness of different herbicides, applied at different times, for the control of bitter grass. The experiment was carried out in pots at the experimental farm of the Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos, during the agricultural year of 2018/2019. As experimental units were used plastic pots of 12 kg of soil with 5 plants of bitter grass, kept in the field. The work was carried out with 13 treatments consisted of the herbicides clethodim, clodinafope, fluazifope-p-butyl and haloxyfop, all applied on 11/15/2018, at the hours of 6:00 a.m., 6:00 p.m., 0:00 a.m. and a witness without application. The experimental design was completely randomized (DIC), with four replications. The analyzed variables were phytotoxicity at 7, 14, 21 and 28 days after application (DAA), plant height at 28 DAA and dry mass at 28 DAA. The results showed that all the herbicides caused a certain degree of phytotoxicity on the plants, and the symptoms varied in the first evaluation at 7 DAA of very light for the herbicide Topik, moderate for the herbicides Fusilade and Verdict and very strong for the herbicide Select. In the last evaluation the observed symptoms were of strong for the Topik, very strong for the Fusilade, partial death of the plants for the Verdict and total death of the plants for the herbicide Select. It was concluded that among the tested herbicides, the herbicide Select was the most effective when controlling the weed, when it was applied at 6:00 p.m., followed by the 0:00 a.m. time. The second best was the herbicide Verdict applied regardless of the time.
format Trabalho de Conclusão de Curso (Graduação)
author Torino, Mateus
author_sort Torino, Mateus
title Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)
title_short Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)
title_full Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)
title_fullStr Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)
title_full_unstemmed Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis)
title_sort horários de aplicação de herbicidas para o controle de capim amargoso (digitaria insularis)
publisher Agronomia
publishDate 2022
citation TORINO, Mateus. Horários de aplicação de herbicidas para o controle de capim amargoso (Digitaria insularis). 2019. Trabalho de Conclusão de Curso (Bacharelado em Agronomia) - Universidade Tecnológica Federal do Paraná, Dois Vizinhos, 2019.
url http://repositorio.utfpr.edu.br/jspui/handle/1/30096
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score 10,814766

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