飞防助剂对农药雾滴飘移及性状的影响  

The influence of aviation plant protection adjuvant on the drift and characteristics of pesticide droplets

作　　者：孔令伟 郑燕 陶波[1] KONG Lingwei;ZHENG Yan;TAO Bo(College of Agriculture,Northeast Agricultural University,Harbin 150030,China;Yantai Nanshan College,Yantai 265713,Shandong,China)

机构地区：[1]东北农业大学农学院,哈尔滨150030 [2]烟台南山学院,烟台265713

出　　处：《世界农药》2024年第11期27-33,共7页World Pesticide

摘　　要：为解决植保无人机农药喷洒飘移严重、农药利用率低等问题,通过仪器分析结合田间药效试验,研究不同种类助剂对氟磺胺草醚雾滴飘移与沉积、农药雾滴理化性状、农药雾滴粒径大小分布及田间生物活性的影响。结果表明:通过添加助剂,可减少农药雾滴表面张力、提高农药药液黏度、农药雾滴扩展直径、干燥时间及靶标界面持留量,促进农药雾滴优质粒径集中,同时有效提高农药有效利用率,增强农药田间生物活性。其中,迪翔飞防助剂对农药液滴的改善效果最显著,可有效降低农药雾滴表面张力59.82%,提高农药雾滴沉积率28.6%、黏度69.28%、扩展直径62.41%、最大持留量79.59%、防效28.48%。To address the issues of severe drift and low pesticide utilization rate in pesticide spraying by plant protection drones,instrument analysis combined with field efficacy tests were conducted to study the effects of different types of adjuvants on the drift and deposition of fomesafen droplets,the physicochemical properties of pesticide droplets,the particle size distribution of pesticide droplets,and the field biological activity.The results indicated that by adding adjuvants,the surface tension of pesticide droplets could be reduced,the viscosity of pesticide liquid could be increased,the expansion diameter of pesticide droplets,drying time,and retention at the target interface could be enhanced.This promoted the concentration of high-quality particle sizes of pesticide droplets and effectively increased the effective utilization rate of pesticides and enhanced the field biological activity of pesticides.Among them,Dixiang aviation plant protection adjuvant had the most significant improvement effect on pesticide droplets.It could effectively reduce the surface tension of pesticide droplets by 59.82%,increased the deposition rate of pesticide droplets by 28.6%,increased the viscosity by 69.28%,increased the expansion diameter by 62.41%,increased the maximum retention by 79.59%,and increased the control effect by 28.48%.

关 键 词：氟磺胺草醚 飞防助剂 农药利用率 杂草防效 

分 类 号：TQ450[化学工程—农药化工]