Effect of Biochar on the Degradation Dynamics of Chlorantraniliprole and Acetochlor in Brassica chinensis L. and Soil under Field Conditions
文献类型： 外文期刊
作者： Sun, Caixia 1 ; Bei, Ke 4 ; Xu, Yanmei 1 ; Pan, Zhiyan 1 ;
作者机构： 1.Zhejiang Univ Technol, Coll Environm, Hangzhou 310032, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Hangzhou 310021, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Pesticide Residue Detect, State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Peoples R China
4.Wenzhou Univ, Coll Life & Environm Sci, Wenzhou 325035, Peoples R China
期刊名称：ACS OMEGA （ 影响因子：3.512； 五年影响因子：3.613 ）
ISSN： 2470-1343
年卷期： 2021 年 6 卷 1 期
页码：
收录情况： SCI
摘要： Although biochar is a promising soil enhancement material, we have limited understanding of its effect on certain pesticide in soils and plants under field conditions. The aim of this study was to examine the impact of walnut shell biochar (WSB), which is rich in benzylic ring C and lignin charcoal, on the degradation dynamics of chlorantraniliprole (CAP) and acetochlor in Brassica chinensis L. fields. The functional group structure, aromatic ring structure, and crystallite size of the WSB were determined by thermogravimetric analysis and derivative thermogravimetry analysis (TGA-DTG), NMR, Raman spectroscopy, and X-ray diffraction, respectively. With WSB applications of 5% (v/v) in root soil, B. chinensis L. growth was facilitated. Degradation dynamic analysis showed that the half-life of CAP on B. chinensis L. and in soil did not change greatly. For acetochlor, the half-life in soil was 6.93 days with WSB application and 9.90 days without WSB application. The WSB application increased bioconcentration factor values more significantly for acetochlor than for CAP. These results show that WSB has a greater impact on acetochlor than on CAP when used for pesticide degradation in the field.
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