| 30%醚菌酯悬浮剂在黄瓜和土壤中的残留降解行为及安全使用技术 |
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| 引用本文： | 葛,谦,苟春林,姜,瑞.30%醚菌酯悬浮剂在黄瓜和土壤中的残留降解行为及安全使用技术[J].安徽农业科学,2014(22):7422-7425. |
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| 作者姓名： | 葛 谦 苟春林 姜 瑞 |
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| 作者单位： | 宁夏农林科学院农产品质量标准与技术研究所,宁夏银川750002 |
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| 摘 要： | 目的]评价30%醚菌酯悬浮剂在设施栽培黄瓜上使用后的残留行为及环境安全性。方法]参照《农药残留试验准则》,通过气相色谱法检测分析黄瓜中醚菌酯含量,研究了30%醚菌酯悬浮剂在黄瓜上的残留动态。结果]醚菌酯在银川、长沙、哈尔滨黄瓜中的半衰期分别为2.8~3.1、2.4~3.7、2.1~5.1 d,施药3、5、7 d黄瓜中醚菌酯的残留量均低于0.500 0 mg/kg,未超出国家限量标准。结论]建议设施栽培条件下,最高制剂用药量270 g.a.i/ha(制剂0.09 g/m2),最多施药3次,安全间隔期3~5 d。
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| 关 键 词： | %醚菌酯悬浮剂 黄瓜残留 消解动态 残留分析 |
Degradation Behavior and Safely Applying Technology of 30％ Kresoxim-Methyl Suspensions in Cucumber and Soil |
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| Institution: | GE Qian,GOU Chun-lin(Quality Standards and Testing Institute of Agricultural Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002) |
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| Abstract: | Objective] To determine the changes in residue and environmental safety of 30％ kresoxim-methyl suspensions applied on cucumber under greenhouse conditions.Method] Referring to Test Standard of Pesticide Residues,the residue dynamics of kresoxim-methyl content in cucumber was determined by GC.Result] The results showed that the half lives of kresoxim-methly in cucumber of Yinchuan,Changsha,Haerbin were 2.8-3.1,2.4-3.7,2.1-5.1 days and the terminal residue in cucumber for 3,5,7 days was less than the limited standards of the state that 0.500 0 mg/kg.Conclusion] Under the proposed cultivation conditions,the maximum dosage formulations 270 g.a.i/ha （preparation 0.09 g/m2）,spraying up to three times and post-harvest interval was suggested to be 3-5 days. |
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| Keywords: | 30％ kresoxim-methyl suspensions Cucumber residue Degradation dynamics Residue analysis |
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