安徽农业科学2019，Vol.47Issue(2)：185-187,190,4.DOI:10.3969/j.issn.0517-6611.2019.02.057
敌敌畏在胡萝卜中的残留分析及消解动态
Residue Analysis and Degradation Dynamics of Dichlorvos in Carrot
摘要
Abstract
[Objective] To clarify the residue and digestion dynamics of dichlorvos in carrot. [Method] A standardized field experiment was conducted and a method for the residue analysis of dichlorvos in carrot was established. [Result] 77.5％ dichlorvos EC was not detected in carrot and soil 3 days after application with 1 800 g a.i./hm2. The pesticide degradated quickly and did not cause accumulative residue. When the dichlorvos was divided into 2 and 3 times with 1 200 and 1 800 g a.i./hm2 respectively, the interval of the dosage was 7 d, and the carrots were collected from 5, 7 and 14 d after the last dosage, and the detectable residual amount was between 0.010 and 0.112 mg/kg. This concentration was lower than the MRL (0.2 mg/kg) of dichlorvos in dark vegetables.[Conclusion] It is suggested that the dosage of dichlorvos will not exceed 1 200 g a.i./hm2, the maximum application time will not exceed 3 times, and the safe interval is 7 days, when using recommended 77.5％ dichlorvos EC to control carrot disease.关键词
敌敌畏/胡萝卜/残留/消解Key words
Dichlorvos/Carrot/Residue/Degradatation分类
农业科技引用本文复制引用
曹倩,王秋华,蒋紫烟,廖婵娟,苏龙,王寒..敌敌畏在胡萝卜中的残留分析及消解动态[J].安徽农业科学,2019,47(2):185-187,190,4.基金项目
湖南省教育厅一般项目(17C0761) （17C0761）
农业部农业行业标准制定和修订项目(农财发2016-D850) （农财发2016-D850）
