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Position: Home > Articles > Residue Determination and Degradation of Niclosamide Ethanolamine in Rice and Paddy System Journal of Agro-Environment Science 2012,31 (02) 278-283

杀螺胺乙醇胺盐在水稻和稻田中的残留及消解动态

作者：

伍一红;龚道新;张素芳;周圣超

单位：

湖南农业大学资源环境学院

关键词：

杀螺胺乙醇胺盐;水稻;稻田;消解动态;残留

摘要：

为明确杀螺胺乙醇胺盐在稻田系统的使用安全性,采用田间试验方法,研究了杀螺胺乙醇胺盐在长沙、杭州、贵阳三地水稻中的消解动态和最终残留。结果表明,该化学灭螺药在三地的稻田水、土壤、稻秆中消解半衰期分别为1.69～3.01、8.66～13.86d和5.33～7.70d。施药后62d糙米中杀螺胺乙醇胺盐的最终残留量均<1.00mg·kg-1,水稻稻秆中含量最高。在水稻中使用杀螺胺乙醇胺盐70%可湿性粉剂,按推荐剂量900g·hm-(2630a.i.g·hm-2),最多施药2次,杀螺胺乙醇胺盐在水稻上的安全期为62d。

译名：

Residue Determination and Degradation of Niclosamide Ethanolamine in Rice and Paddy System

作者：

WU Yi-hong1,2, GONG Dao-xin1,2*, ZHANG Su-fang1,2, ZHOU Sheng-chao1,2(1.College of Resource and Environment, Hunan Agricultural University, Changsha 410128,China; 2. Institute of Agricultural Environmental Protection, Hunan Agricultural University, Changsha 410128, China)

关键词：

niclosamide ethanolamine; rice; paddy field; degradation dynamics; residue

摘要：

To determine the safety of niclosamide ethanolamine in rice ecosystem, a field experiment was conducted to reveal residual dynamics and final residue of niclosamide ethanolamine in rice and paddy system in Changsha, Hangzhou and Guiyang of China. The degradation dynamics and the final residue results of niclosamide ethanolamine in rice and paddy system showed that the degradation half-lives in rice plant, paddy water and soil were 1.69～3.01 d, 8.66～13.86 d and 5.33～7.70 d respectively in three places. The final residue of niclosamide ethanolamine in unpolished rice was low than 1.00 mg·kg-1 at an interval of 62 d. However, The final residue of niclosamide ethanolamine in rice plant were higher than those in rice husk, unpolished rice and paddy soil. According to the results, when 70% wettable powder of niclosamide ethanolamine were sprayed in rice for twice according to the recommended dose of 900 g·hm-2(630 a.i.g·hm-2), the safe period of niclosamide ethanolamine in rice could be set as 62 d.

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杀螺胺乙醇胺盐在水稻和稻田中的残留及消解动态

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