嘧菌酯在芒果和土壤上残留动态分析  

Study on residual dynamics of azoxystrobin in mango and soil

作　　者：刘艳萍[1] 孙海滨[1] 曾繁娟[1] 刘景梅[1] 

机构地区：[1]广东省农科院植物保护研究所,广东广州510640

出　　处：《广东农业科学》2010年第10期106-107,124,共3页Guangdong Agricultural Sciences

基　　金：农业部农药残留登记实验项目(2006-2007)

摘　　要：研究了嘧菌酯在广东、云南试验点芒果园施用后的残留与降解情况,采用气相色谱法-电子捕获检测器测定了嘧菌酯在芒果和土壤中的残留量。试验结果表明:嘧菌酯在芒果上的残留动态降解符合一级动力学方程,在芒果和土壤中的半衰期分别为5.8～8.8d和2.3～8.3d,在正常使用条件下,不会造成芒果残毒污染和土壤的残留积累。A field experiment was conducted to reveal dynamics of azoxystrobin in mango and soil.Analytical method of azoxystrobin in mango and soil by capillary column gas chromatography with μ-ECD detector has been established.The decline rules follows the firstorder kinetic equation,and its half-lives was 5.8 ～8.8 days in mango and 2.3 ～8.3 days in soil,respectively.The final residues of azoxystrobin in mango and soil were lower than 1mg·kg-1.

关 键 词：嘧菌酯 芒果 土壤 残留动态 

分 类 号：S482.28[农业科学—农药学]