研究选用不同植保药械,在玉米中后期开展了“一喷多效”减灾技术试验,结果表明:多旋翼无人机和自走式喷雾机作业防虫效果均在90%以上,高于背负式喷雾器喷施的防虫效果;多旋翼无人机作业防病效果最好,对小斑病防效85.20%,对玉米锈病防效为71.50%,显著高于人工防治;多旋翼无人机经济效益最好,自走式喷雾机次之,背负式电动喷雾器效果最差。 The research chose different plant protection medicinal materials to carry out “a multi-effect” disaster reduction technology experiment in the middle and late stage of corn. The results showed that the multi-rotor UAV and self-propelled sprayer had the pest control effect above 90% Sprayer sprays pest control effect; multi-rotor UAV operation prevention and disease best, anti-squamous disease efficacy of 85.20%, 71.50% against corn rust was significantly higher than manual control; multi-rotor UAV economy Benefit the best, followed by self-propelled sprayer, knapsack electric sprayer is the worst.