【摘要】 以百部、巴豆、苦参、雷公藤等多种植物为原料,采用微波破壁、超声波浸提制备了PAD-Ⅰ植物源杀虫剂.试验证实PAD-Ⅰ环境友好杀虫剂对青虫、蚜虫、红蜘蛛具有较强的杀灭作用.应用过程中,PAD-Ⅰ的降解效率受到浓度、pH、温度等诸多因素的影响.其中,随着施药浓度降低,pH值的增大,环境温度升高,PAD-Ⅰ的降解速率减慢.降解动力学分析结果表明,PAD-Ⅰ的降解模型符合双曲速度模型.更多还原

【Abstract】 Pesticide PAD-I derived from foliage was prepared with many plants such as stemona,Croton Seed,radix sophorae flavescentis and Tripterygium wilfordii,by adopting the techniques of microwave shell-breakdown and ultrasonic digestion.The experimental results indicated that Pesticide PAD-I could kill blueworms,aphids and red spiders effectively,and the product was amicable for the environment.In its application,the degradation efficiency of PAD-I was influenced by its concentration,pH value and temperature in such a way that the degradation rate of PAD-I decreased with the decrease of concentration,increase of pH value and rise of temperature.Moreover,the experimental results of degradation kinetics showed that the degradation model of PAD-I followed hyperbolic rate model.更多还原