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Position: Home > Articles > Dispelling dynamic of pirimicarb residue in the cucumber fruits and soil Journal of Gansu Agricultural University 2005,40 (5)

抗蚜威在黄瓜和土壤中的残留消解动态研究

作  者:
闫亚杰;段宇红;杨莉萍;张明宗;沈慧敏
单  位:
兰州市城关区农产品质量监测站;兰州市农产品质量监测中心;甘肃农业大学草业学院农药学系
关键词:
抗蚜威;黄瓜;土壤;残留;消解
摘  要:
将抗蚜威按90~150 g/hm2商品推荐使用剂量进行田间试验,应用气相色谱法进行残留量分析检测。结果表明:抗蚜威在黄瓜及土壤中消失率分别在施药6 d和7 d后达到90%以上,其消解动态方程分别为Ct=1.184 5e-0.339 5t、Ct=5.257 5e-0.390 5t,半衰期为1.7~2.0 d。抗蚜威在黄瓜及土壤中的残留量随着时间延长而递减,符合一级反应动力学方程。
译  名:
Dispelling dynamic of pirimicarb residue in the cucumber fruits and soil
作  者:
YAN Ya-jie~(1),DUAN Yu-hong~(1),YANG Li-ping~(2),ZHANG Ming-zong~(1),SHEN Hui-min~(3) (1.Lanzhou Agro-product Quality Monitoring Center,Gansu,Lanzhou 730010;2.Lanzhou Chengguan Agro-product Quality Monitoring Station,Gansu,Lanzhou 730030;3.Pratacultural College,Gansu Agricultural University,Gansu,Lanzhou 730070,China)
关键词:
pirimicarb;cucumber;soil;residue;dispelling
摘  要:
The field experiment of pirimicarb efficacy was carried out according to the recommendation working weight,90 ~ 150 g/hm~(2),and the gas-chromatograph was used to test its residual contents.The results showed that the elimination coefficient of pirimicarb in the cucumber fruits and soil was above(90%) after drugging delivery in 6 days and 7 days.The despelling degradation dynamic equation was as C_(t)=(1.1845e~(-0.3395t))and C_(t)=5.2575e~(-0.3905t) respectively.Its half-life period ranged from 1.7 to 2.0 days.As time went on,the residual contents of pirimicarb in the cucumber fruits and soil decreased,which accorded with the first-order kinetics equation.

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