Oxyfluorfen bioavailability in Brazilian Savanna soils
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/73107 |
Resumo: | Oxyfluorfen is a pre-emergent herbicide applied via soil; however, the soil attributes have not been considered to predict the herbicide doses. This study aimed to evaluate the bioavailability of the oxyfluorfen herbicide in Brazilian Savanna soils with contrasting attributes. The experiment was carried out in a 6 x 8 factorial scheme, with 6 replications. The evaluated factors were soil types [Gleissolo Melânico distrófico - GMd (Typic Humaquept); Latossolo Vermelho ácrico - LVw (Rhodic Acrustox); Latossolo Vermelho distrófico - LVd (Rhodic Haplustox); Neossolo Quartzarênico órtico - RQo (Typic Quartzpsamment); Neossolo Flúvico Tb distrófico - RYbd (Fluventic Dystrustept); and washed sand] and oxyfluorfen doses (0; 360; 480; 720; 1,440; 2,880; 4,320; and 5,760 g a.i. ha-1). The herbicide bioavailability was determined according to the bioassay methodology. The dose that provided 80 % of Cucumis sativum control (C80%) ranged from 9.9 (LVw) to 1,884.4 g a.i. ha-1 (GMd), what can be attributed to the high sorption of the herbicide in the GMd, as observed by the adsorptive rate. The soil texture did not show correlation with the oxyfluorfen bioavailability. In the LVd, which is from the same order and with texture similar to that of the LVw, the C80% was 76 times higher (754.28 g a.i. ha-1). Furthermore, for the RYbd, which is a sandy soil, the C80% was even high (1,256.9 g a.i. ha-1). The cation exchange capacity (CEC) (-0.83**) was the only soil attribute able to predict the herbicide bioavailability. The oxyfluorfen bioavailability is highly dependent on the soil attributes, and, in Brazilian Savanna soils, it can be predicted using the CEC. KEYWORDS: Pre-emergent herbicide, weed control, oxisoils. |
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Oxyfluorfen bioavailability in Brazilian Savanna soilsBiodisponibilidade de oxyfluorfen em solos de CerradoOxyfluorfen is a pre-emergent herbicide applied via soil; however, the soil attributes have not been considered to predict the herbicide doses. This study aimed to evaluate the bioavailability of the oxyfluorfen herbicide in Brazilian Savanna soils with contrasting attributes. The experiment was carried out in a 6 x 8 factorial scheme, with 6 replications. The evaluated factors were soil types [Gleissolo Melânico distrófico - GMd (Typic Humaquept); Latossolo Vermelho ácrico - LVw (Rhodic Acrustox); Latossolo Vermelho distrófico - LVd (Rhodic Haplustox); Neossolo Quartzarênico órtico - RQo (Typic Quartzpsamment); Neossolo Flúvico Tb distrófico - RYbd (Fluventic Dystrustept); and washed sand] and oxyfluorfen doses (0; 360; 480; 720; 1,440; 2,880; 4,320; and 5,760 g a.i. ha-1). The herbicide bioavailability was determined according to the bioassay methodology. The dose that provided 80 % of Cucumis sativum control (C80%) ranged from 9.9 (LVw) to 1,884.4 g a.i. ha-1 (GMd), what can be attributed to the high sorption of the herbicide in the GMd, as observed by the adsorptive rate. The soil texture did not show correlation with the oxyfluorfen bioavailability. In the LVd, which is from the same order and with texture similar to that of the LVw, the C80% was 76 times higher (754.28 g a.i. ha-1). Furthermore, for the RYbd, which is a sandy soil, the C80% was even high (1,256.9 g a.i. ha-1). The cation exchange capacity (CEC) (-0.83**) was the only soil attribute able to predict the herbicide bioavailability. The oxyfluorfen bioavailability is highly dependent on the soil attributes, and, in Brazilian Savanna soils, it can be predicted using the CEC. KEYWORDS: Pre-emergent herbicide, weed control, oxisoils.O oxyfluorfen é um herbicida pré-emergente aplicado via solo; porém, os atributos do solo não vêm sendo considerados na determinação das doses do produto. Objetivou-se avaliar a biodisponibilidade do herbicida oxyfluorfen em solos do Cerrado com atributos contrastantes. O experimento foi desenvolvido em esquema fatorial 6 x 8, com 6 repetições. Os fatores avaliados foram tipos de solo [Gleissolo Melânico distrófico (GMd), Latossolo Vermelho ácrico (LVw), Latossolo Vermelho distrófico (LVd), Neossolo Quartzarênico órtico (RQo), Neossolo Flúvico Tb distrófico (RYbd) e areia lavada] e doses de oxyfluorfen (0; 360; 480; 720; 1.440; 2.880; 4.320; e 5.760 g i.a. ha-1). A biodisponibilidade do herbicida foi determinada pela metodologia do bioensaio. A dose que garantiu 80 % de controle de Cucumis sativum (C80%) variou de 9,9 (LVw) a 1.884,4 g i.a. ha-1 (GMd), o que pode ser atribuído à elevada capacidade de retenção do herbicida no GMd, conforme verificado pela relação adsortiva. A textura do solo não apresentou correlação com a biodisponibilidade de oxyfluorfen. No LVd, solo da mesma classe e com textura semelhante (argilosa) à do LVw, a CR80% foi 76 vezes maior (754,28 g i.a. ha-1). Além disso, no RYbd, que apresenta textura arenosa, a C80% foi ainda maior (1.256,9 g i.a. ha-1). A capacidade de troca catiônica (CTC) (-0,83**) foi o único atributo do solo capaz de predizer a biodisponibilidade do herbicida. A biodisponibilidade do oxyfluorfen é altamente dependente dos atributos do solo e, em solos do Cerrado, pode ser predita pela CTC. PALAVRAS-CHAVE: Herbicidas pré-emergentes, controle de plantas daninhas, latossolos.Escola de Agronomia - Universidade Federal de Goiás2022-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/73107Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 52 (2022); e73107Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 52 (2022); e73107Pesquisa Agropecuária Tropical; v. 52 (2022); e731071983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/73107/39090Copyright (c) 2022 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessPacheco, Lara Cristina Pereira da Silva Sousa, Juliet Emilia Santos deSouza Júnior, Valdomiro Severino deDamin, Virgínia2022-12-14T13:26:15Zoai:ojs.revistas.ufg.br:article/73107Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:37.274004Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Oxyfluorfen bioavailability in Brazilian Savanna soils Biodisponibilidade de oxyfluorfen em solos de Cerrado |
title |
Oxyfluorfen bioavailability in Brazilian Savanna soils |
spellingShingle |
Oxyfluorfen bioavailability in Brazilian Savanna soils Pacheco, Lara Cristina Pereira da Silva |
title_short |
Oxyfluorfen bioavailability in Brazilian Savanna soils |
title_full |
Oxyfluorfen bioavailability in Brazilian Savanna soils |
title_fullStr |
Oxyfluorfen bioavailability in Brazilian Savanna soils |
title_full_unstemmed |
Oxyfluorfen bioavailability in Brazilian Savanna soils |
title_sort |
Oxyfluorfen bioavailability in Brazilian Savanna soils |
author |
Pacheco, Lara Cristina Pereira da Silva |
author_facet |
Pacheco, Lara Cristina Pereira da Silva Sousa, Juliet Emilia Santos de Souza Júnior, Valdomiro Severino de Damin, Virgínia |
author_role |
author |
author2 |
Sousa, Juliet Emilia Santos de Souza Júnior, Valdomiro Severino de Damin, Virgínia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Pacheco, Lara Cristina Pereira da Silva Sousa, Juliet Emilia Santos de Souza Júnior, Valdomiro Severino de Damin, Virgínia |
description |
Oxyfluorfen is a pre-emergent herbicide applied via soil; however, the soil attributes have not been considered to predict the herbicide doses. This study aimed to evaluate the bioavailability of the oxyfluorfen herbicide in Brazilian Savanna soils with contrasting attributes. The experiment was carried out in a 6 x 8 factorial scheme, with 6 replications. The evaluated factors were soil types [Gleissolo Melânico distrófico - GMd (Typic Humaquept); Latossolo Vermelho ácrico - LVw (Rhodic Acrustox); Latossolo Vermelho distrófico - LVd (Rhodic Haplustox); Neossolo Quartzarênico órtico - RQo (Typic Quartzpsamment); Neossolo Flúvico Tb distrófico - RYbd (Fluventic Dystrustept); and washed sand] and oxyfluorfen doses (0; 360; 480; 720; 1,440; 2,880; 4,320; and 5,760 g a.i. ha-1). The herbicide bioavailability was determined according to the bioassay methodology. The dose that provided 80 % of Cucumis sativum control (C80%) ranged from 9.9 (LVw) to 1,884.4 g a.i. ha-1 (GMd), what can be attributed to the high sorption of the herbicide in the GMd, as observed by the adsorptive rate. The soil texture did not show correlation with the oxyfluorfen bioavailability. In the LVd, which is from the same order and with texture similar to that of the LVw, the C80% was 76 times higher (754.28 g a.i. ha-1). Furthermore, for the RYbd, which is a sandy soil, the C80% was even high (1,256.9 g a.i. ha-1). The cation exchange capacity (CEC) (-0.83**) was the only soil attribute able to predict the herbicide bioavailability. The oxyfluorfen bioavailability is highly dependent on the soil attributes, and, in Brazilian Savanna soils, it can be predicted using the CEC. KEYWORDS: Pre-emergent herbicide, weed control, oxisoils. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-14 |
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/73107 |
url |
https://revistas.ufg.br/pat/article/view/73107 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/73107/39090 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 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. 52 (2022); e73107 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 52 (2022); e73107 Pesquisa Agropecuária Tropical; v. 52 (2022); e73107 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_ |
1799874821519048704 |