Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/76359 |
Resumo: | The soil characteristics play a pivotal role in shaping the efficacy of pre-emergent herbicides in the context of weed control and their phytotoxic influence on the target crop. This study aimed to assess the effect of soil attributes on the efficacy of the S-metolachlor herbicide, as well as to determine its optimal dose in relation to soil attributes. The experiment was conducted under greenhouse conditions, in a 6 x 8 factorial design, with five replications, using 6 soil types [GMd (Typic Humaquept), NVe (Rhodic Eutrustox), CXbd (Typic Dystrustepts), LVw (Rhodic Acrustox), LVdf (Rhodic Haplustox) and RQo (Typic Quartzpsamment)] and 8 doses of the product [0, 1/8x, 1/4x, 1/3x, 1/2x, 1x, 2x and 4x (with x = 1,920 g ha-1)]. Dose-response curves were constructed and the outcomes showed that, for the LVw, RQo and CXbd soils, there was a control of over 90 % with less than half of the recommended dose, while, for the other soil types, lower reductions are possible. The base saturation and soil organic matter content showed a substantial negative correlation (-0.73 and -0.74, respectively) with the efficacy of the product. The S-metolachlor doses required to achieve a control of 90 % are contingent upon specific soil attributes, especially the variables base saturation and organic matter. The clay content did not present any correlation with the S-metolachlor doses for the studied soils. KEYWORDS: Bioavailability, pre-emergent herbicides, weed control. |
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Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soilsEficácia do herbicida S-metolacloro no controle de Urochloa decumbens em solos de CerradoThe soil characteristics play a pivotal role in shaping the efficacy of pre-emergent herbicides in the context of weed control and their phytotoxic influence on the target crop. This study aimed to assess the effect of soil attributes on the efficacy of the S-metolachlor herbicide, as well as to determine its optimal dose in relation to soil attributes. The experiment was conducted under greenhouse conditions, in a 6 x 8 factorial design, with five replications, using 6 soil types [GMd (Typic Humaquept), NVe (Rhodic Eutrustox), CXbd (Typic Dystrustepts), LVw (Rhodic Acrustox), LVdf (Rhodic Haplustox) and RQo (Typic Quartzpsamment)] and 8 doses of the product [0, 1/8x, 1/4x, 1/3x, 1/2x, 1x, 2x and 4x (with x = 1,920 g ha-1)]. Dose-response curves were constructed and the outcomes showed that, for the LVw, RQo and CXbd soils, there was a control of over 90 % with less than half of the recommended dose, while, for the other soil types, lower reductions are possible. The base saturation and soil organic matter content showed a substantial negative correlation (-0.73 and -0.74, respectively) with the efficacy of the product. The S-metolachlor doses required to achieve a control of 90 % are contingent upon specific soil attributes, especially the variables base saturation and organic matter. The clay content did not present any correlation with the S-metolachlor doses for the studied soils. KEYWORDS: Bioavailability, pre-emergent herbicides, weed control.As características do solo desempenham papel fundamental na eficácia de herbicidas pré-emergentes, no contexto do controle de plantas daninhas e da sua influência fitotóxica na cultura alvo. Objetivou-se avaliar o efeito dos atributos do solo na eficácia do herbicida S-metolacloro e determinar sua dose ideal em função dos atributos do solo. O experimento foi desenvolvido em casa-de-vegetação, em esquema fatorial 6 x 8, com 5 repetições, utilizando-se 6 tipos de solo [Melânico Distrófico (GMd), Nitossolo Vermelho Eutrófico (NVe), Cambissolo Háplico Tb Distrófico (CXbd), Latossolo Vermelho Ácrico (LVw), Latossolo Vermelho Distróférrico (LVdf) e Neossolo Quartzarênico Órtico (RQo)] e 8 doses do produto [0, 1/8x, 1/4x, 1/3x, 1/2x, 1x, 2x e 4x (com x = 1.920 g ha-1)]. Curvas de dose-resposta foram construídas e os resultados mostraram que, para LVw, RQo e CXbd, a dose pode ser reduzida, sendo obtido controle acima de 90 % com menos da metade da dose recomendada, enquanto, para os demais solos, menores reduções são possíveis. A saturação de bases e o teor de matéria orgânica do solo apresentaram correlação forte (-0,73 e -0,74, respectivamente) com a eficácia do produto. As doses de S-metolacloro necessárias para garantir 90 % de controle são afetadas pelos atributos do solo, especialmente a saturação de bases e matéria orgânica. O teor de argila não apresentou correlação com as doses de S-metolacloro nos solos estudados. PALAVRAS-CHAVE: Biodisponibilidade, herbicidas pré-emergentes, controle de plantas daninhas.Escola de Agronomia - Universidade Federal de Goiás2023-11-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/76359Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 53 (2023); e76359Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 53 (2023); e76359Pesquisa Agropecuária Tropical; v. 53 (2023); e763591983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/76359/40385Copyright (c) 2023 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessCarmo, Mariana Siqueira doSilveira, Isabella Nunes daAlmeida, Danielle ResendeJardim, Rachel Stefany MedeirosDamin, Virgínia2023-11-10T13:01:23Zoai:ojs.revistas.ufg.br:article/76359Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:39.909063Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils Eficácia do herbicida S-metolacloro no controle de Urochloa decumbens em solos de Cerrado |
title |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils |
spellingShingle |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils Carmo, Mariana Siqueira do |
title_short |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils |
title_full |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils |
title_fullStr |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils |
title_full_unstemmed |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils |
title_sort |
Effectiveness of the S-metolachlor herbicide in the control of Urochloa decumbens in Brazilian Savanna soils |
author |
Carmo, Mariana Siqueira do |
author_facet |
Carmo, Mariana Siqueira do Silveira, Isabella Nunes da Almeida, Danielle Resende Jardim, Rachel Stefany Medeiros Damin, Virgínia |
author_role |
author |
author2 |
Silveira, Isabella Nunes da Almeida, Danielle Resende Jardim, Rachel Stefany Medeiros Damin, Virgínia |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carmo, Mariana Siqueira do Silveira, Isabella Nunes da Almeida, Danielle Resende Jardim, Rachel Stefany Medeiros Damin, Virgínia |
description |
The soil characteristics play a pivotal role in shaping the efficacy of pre-emergent herbicides in the context of weed control and their phytotoxic influence on the target crop. This study aimed to assess the effect of soil attributes on the efficacy of the S-metolachlor herbicide, as well as to determine its optimal dose in relation to soil attributes. The experiment was conducted under greenhouse conditions, in a 6 x 8 factorial design, with five replications, using 6 soil types [GMd (Typic Humaquept), NVe (Rhodic Eutrustox), CXbd (Typic Dystrustepts), LVw (Rhodic Acrustox), LVdf (Rhodic Haplustox) and RQo (Typic Quartzpsamment)] and 8 doses of the product [0, 1/8x, 1/4x, 1/3x, 1/2x, 1x, 2x and 4x (with x = 1,920 g ha-1)]. Dose-response curves were constructed and the outcomes showed that, for the LVw, RQo and CXbd soils, there was a control of over 90 % with less than half of the recommended dose, while, for the other soil types, lower reductions are possible. The base saturation and soil organic matter content showed a substantial negative correlation (-0.73 and -0.74, respectively) with the efficacy of the product. The S-metolachlor doses required to achieve a control of 90 % are contingent upon specific soil attributes, especially the variables base saturation and organic matter. The clay content did not present any correlation with the S-metolachlor doses for the studied soils. KEYWORDS: Bioavailability, pre-emergent herbicides, weed control. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-11-10 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/76359 |
url |
https://revistas.ufg.br/pat/article/view/76359 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/76359/40385 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Pesquisa Agropecuária Tropical |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 53 (2023); e76359 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 53 (2023); e76359 Pesquisa Agropecuária Tropical; v. 53 (2023); e76359 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874821623906304 |