Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils

Soil attributes may affect the residual activity and impacts of herbicides on non-target organisms. This study aimed to evaluate the residual activity of the sulfentrazone herbicide and its impacts on microbiological parameters of Brazilian Savanna soils, as well as to identify soil...

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Main Authors: Virgínia Damin, Bruno da Silva Carrijo, Nathalia Almeida Costa
Format: article
Language:EN
PT
Published: Universidade Federal de Goiás 2021
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Online Access:https://doaj.org/article/3e15d8db15b74d0f8ecb289b3b7ece6e
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spelling oai:doaj.org-article:3e15d8db15b74d0f8ecb289b3b7ece6e2021-11-22T19:13:31ZResidual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils10.1590/1983-40632021v51683401983-4063https://doaj.org/article/3e15d8db15b74d0f8ecb289b3b7ece6e2021-11-01T00:00:00Zhttps://www.revistas.ufg.br/pat/article/view/68340/37634https://doaj.org/toc/1983-4063Soil attributes may affect the residual activity and impacts of herbicides on non-target organisms. This study aimed to evaluate the residual activity of the sulfentrazone herbicide and its impacts on microbiological parameters of Brazilian Savanna soils, as well as to identify soil attributes that can be used to predict the residual activity of the herbicide in these soils. The experimental design was completely randomized, in a 6 x 5 factorial scheme, with 4 replications, being 5 soil types (Rhodic Acrustox; Typic Quartzpsamment; Rhodic Haplustox; Typic Humaquepts; Fluventic Dystrustepts) and 6 periods (0, 15, 30, 45, 60 and 90 days after herbicide application - DAA). The residual activity of the sulfentrazone herbicide is dependent of the soil type, and the time that the herbicide can control at least 80 % of Urochloa decumbens plants ranges from 0 (Typic Humaquepts) to 38 days (Rhodic Haplustox). The bases saturation is the only soil attribute correlated with the herbicide efficacy over time, in the Brazilian Savanna soils, showing a moderate correlation up to 90 DAA. The pH, organic matter and clay content are not correlated with the herbicide efficacy over time in these soils. Sulfentrazone reduces the microorganisms activity from 45 to 90 DAA in all the studied soils. However, it does not affect the microbial biomass carbon.Virgínia DaminBruno da Silva CarrijoNathalia Almeida CostaUniversidade Federal de Goiás articleurochloa decumbens stapf.pre-emergent herbicidessoil microorganismsAgriculture (General)S1-972ENPTPesquisa Agropecuária Tropical, Vol 51, p e68340 (2021)
institution DOAJ
collection DOAJ
language EN
PT
topic urochloa decumbens stapf.
pre-emergent herbicides
soil microorganisms
Agriculture (General)
S1-972
spellingShingle urochloa decumbens stapf.
pre-emergent herbicides
soil microorganisms
Agriculture (General)
S1-972
Virgínia Damin
Bruno da Silva Carrijo
Nathalia Almeida Costa
Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils
description Soil attributes may affect the residual activity and impacts of herbicides on non-target organisms. This study aimed to evaluate the residual activity of the sulfentrazone herbicide and its impacts on microbiological parameters of Brazilian Savanna soils, as well as to identify soil attributes that can be used to predict the residual activity of the herbicide in these soils. The experimental design was completely randomized, in a 6 x 5 factorial scheme, with 4 replications, being 5 soil types (Rhodic Acrustox; Typic Quartzpsamment; Rhodic Haplustox; Typic Humaquepts; Fluventic Dystrustepts) and 6 periods (0, 15, 30, 45, 60 and 90 days after herbicide application - DAA). The residual activity of the sulfentrazone herbicide is dependent of the soil type, and the time that the herbicide can control at least 80 % of Urochloa decumbens plants ranges from 0 (Typic Humaquepts) to 38 days (Rhodic Haplustox). The bases saturation is the only soil attribute correlated with the herbicide efficacy over time, in the Brazilian Savanna soils, showing a moderate correlation up to 90 DAA. The pH, organic matter and clay content are not correlated with the herbicide efficacy over time in these soils. Sulfentrazone reduces the microorganisms activity from 45 to 90 DAA in all the studied soils. However, it does not affect the microbial biomass carbon.
format article
author Virgínia Damin
Bruno da Silva Carrijo
Nathalia Almeida Costa
author_facet Virgínia Damin
Bruno da Silva Carrijo
Nathalia Almeida Costa
author_sort Virgínia Damin
title Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils
title_short Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils
title_full Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils
title_fullStr Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils
title_full_unstemmed Residual activity of sulfentrazone and its impacts on microbial activity and biomass of Brazilian Savanna soils
title_sort residual activity of sulfentrazone and its impacts on microbial activity and biomass of brazilian savanna soils
publisher Universidade Federal de Goiás
publishDate 2021
url https://doaj.org/article/3e15d8db15b74d0f8ecb289b3b7ece6e
work_keys_str_mv AT virginiadamin residualactivityofsulfentrazoneanditsimpactsonmicrobialactivityandbiomassofbraziliansavannasoils
AT brunodasilvacarrijo residualactivityofsulfentrazoneanditsimpactsonmicrobialactivityandbiomassofbraziliansavannasoils
AT nathaliaalmeidacosta residualactivityofsulfentrazoneanditsimpactsonmicrobialactivityandbiomassofbraziliansavannasoils
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