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Adsorption and degradation of imazapic in soils under different environmental conditions

文献类型： 外文期刊

作者： Su, Wangcang 1 ; Hao, Hongdan 1 ; Ding, Mingzhen 2 ; Wu, Renhai 1 ; Xu, Hongle 1 ; Xue, Fei 1 ; Shen, Changchao 1 ; Sun, 1 ;

作者机构： 1.Henan Acad Agr Sci, Inst Plant Protect, Key Lab Integrated Pest Management Crops Southern, Henan Key Lab Crop Pest Control, Zhengzhou, Henan, Peoples R China

2.Nanjing Univ, Jinling Coll, Nanjing, Jiangsu, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2019 年 14 卷 7 期

页码：

收录情况： SCI

摘要： Imazapic is widely used in peanut production, and its residues can cause damage to succeeding crops planted in the following year. The planting area of peanut is large in Henan province. Inceptisol is the main soil type in Henan Province and was used in laboratory experiments that were conducted to investigate imazapic degradation in soil under various environmental conditions. The results indicated that the imazapic degradation rate increased with an increase in temperature, soil pH, and soil moisture, and decreased with organic matter content. The use of biogas slurry as a soil amendment accelerated imazapic degradation. The half-life of imazapic in sterilized soil (364.7 d) was longer than in unsterilized soil (138.6 d), which suggested that there was a significant microbial contribution to imazapic degradation. Imazapic adsorption was also examined and was found to be well described by the Freundlich isotherm. The results indicate that soil has a certain adsorption capacity for imazapic.

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