摘要
异丙威乳油按商品推荐使用剂量30～50g/hm2进行田间试验表明,施药7 d后,异丙威在大白菜和土壤中消失率达90%以上,其消解动态方程分别为Ct=3.9679e-0.3579t,Ct=1.7345 e-0.3819t,半衰期为1.8～1.9 d.异丙威在大白菜和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.
The field experiment of isoprocarb EC was carried out according to the recommendation working weight 30～50 g/hm^2, the result showed that the elimination coefficient of isoprocarb in chinese cabbage and soil was above 90% after drug delivery 7 days, and the degradation dynamic equation were Ct= 3. 9679e^-0.3579t, Ct= 1. 7345e^-0.3819t individually, the halflife was1. 8～1.9 days. As the time went on, the residual weight of isoprocarb in soil decreased, which was in keeping with the first-order kinetics equation.
出处
《甘肃农业科技》
2005年第8期50-52,共3页
Gansu Agricultural Science and Technology
关键词
异丙威
大白菜
土壤
残留
消解
Isoprocarb
Chinese cabbage
Soil
Residue
Degradation
