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Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil
Biochar, as a soil amendment in agriculture, has attracted considerable attention. In the study, the fate and toxicity of the herbicide fenoxaprop-ethyl were evaluated in soils with and without 5% rice husk biochar amendment. Fenoxaprop-ethyl and metabolite fenoxaprop degradation followed first-orde...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society Publishing
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5990734/ https://www.ncbi.nlm.nih.gov/pubmed/29892380 http://dx.doi.org/10.1098/rsos.171875 |
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author | Jing, Xu Wang, Tengfei Yang, Jiali Wang, Yanli Xu, Huifang |
author_facet | Jing, Xu Wang, Tengfei Yang, Jiali Wang, Yanli Xu, Huifang |
author_sort | Jing, Xu |
collection | PubMed |
description | Biochar, as a soil amendment in agriculture, has attracted considerable attention. In the study, the fate and toxicity of the herbicide fenoxaprop-ethyl were evaluated in soils with and without 5% rice husk biochar amendment. Fenoxaprop-ethyl and metabolite fenoxaprop degradation followed first-order kinetics in the two soils. Fenoxaprop-ethyl decreased fast with half-lives less than 2 days. Large amounts of fenoxaprop formed and remained in the control soil. However, fenoxaprop was much lower in the biochar-amended soil with reduction over 85% on the 35th day. The estimated half-lives of fenoxaprop were 56.9 and 1.5 days in the control and biochar-amended soils, respectively. Biochar restrained the formation and promoted the dissipation of fenoxaprop. Biological indicator earthworms (Eisenia fetida) were used in a 14-day acute toxicity test. Fenoxaprop-ethyl showed low toxicity to earthworms with LC(50) value of 322.9 µg g(−1). Biochar amendment was non-toxic to earthworms and effectively reduced the toxicity. The results suggested that the application of biochar may reduce the risks of fenoxaprop-ethyl in the soil environment. |
format | Online Article Text |
id | pubmed-5990734 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-59907342018-06-11 Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil Jing, Xu Wang, Tengfei Yang, Jiali Wang, Yanli Xu, Huifang R Soc Open Sci Chemistry Biochar, as a soil amendment in agriculture, has attracted considerable attention. In the study, the fate and toxicity of the herbicide fenoxaprop-ethyl were evaluated in soils with and without 5% rice husk biochar amendment. Fenoxaprop-ethyl and metabolite fenoxaprop degradation followed first-order kinetics in the two soils. Fenoxaprop-ethyl decreased fast with half-lives less than 2 days. Large amounts of fenoxaprop formed and remained in the control soil. However, fenoxaprop was much lower in the biochar-amended soil with reduction over 85% on the 35th day. The estimated half-lives of fenoxaprop were 56.9 and 1.5 days in the control and biochar-amended soils, respectively. Biochar restrained the formation and promoted the dissipation of fenoxaprop. Biological indicator earthworms (Eisenia fetida) were used in a 14-day acute toxicity test. Fenoxaprop-ethyl showed low toxicity to earthworms with LC(50) value of 322.9 µg g(−1). Biochar amendment was non-toxic to earthworms and effectively reduced the toxicity. The results suggested that the application of biochar may reduce the risks of fenoxaprop-ethyl in the soil environment. The Royal Society Publishing 2018-05-02 /pmc/articles/PMC5990734/ /pubmed/29892380 http://dx.doi.org/10.1098/rsos.171875 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Chemistry Jing, Xu Wang, Tengfei Yang, Jiali Wang, Yanli Xu, Huifang Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
title | Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
title_full | Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
title_fullStr | Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
title_full_unstemmed | Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
title_short | Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
title_sort | effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5990734/ https://www.ncbi.nlm.nih.gov/pubmed/29892380 http://dx.doi.org/10.1098/rsos.171875 |
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