华南农业大学学报2017，Vol.38Issue(5)：97-102,6.DOI:10.7671/j.issn.1001-411X.2017.05.017
小型植保无人机喷雾参数对橘树冠层雾滴沉积分布的影响
Effects of spraying parameters of small plant protection UAV on droplets deposition distribution in citrus canopy
摘要
Abstract
[Objective] To explore droplet deposition distribution patterns from aerial spraying and the application prospect of small plant protection unmanned aerial vehicle (UAV) for fruit trees,and study the influence of spraying parameters of UAV on droplets deposition distribution in citrus canopy.[Method] Spray test with six-rotor plant protection UAV was arranged by an orthogonal test of three factors (flight height,flight velocity,nozzle flow rate).[Result] Preferred spraying operation parameters for small plant protection UAV were 2.5 m flight height,4.0 m·s-1flight speed and 1.0 L·min-1 nozzle flow rate based on the test results of density and uniformity of deposited droplets.The factors that affected the density of deposited droplets were in order of flight velocity,flight height,and nozzle flow rate.Test No.2 with 2.0 flight height,4 m·s-1 flight speed,0.6 L·min-1 nozzle flow rate and No.8 with 2.0 m flight height,1 m·s-1 flight speed,1.0 L·min-1 nozzle flow rate resulted in relatively high density and penetrability of deposited droplets,and the penetrability of droplets were 22.21％ and 22.41％ respectively.The factors that affected the penetrability of deposited droplets were in order of flight height,flight velocity,and nozzle flow rate.[Conclusion] Due to the influence of the wind field of UAV rotor and the unique structure of citrus,the operating parameters of plant protection UAV should be optimized to ensure effective deposition and distrubition of droplets in citrus canopy from aerial spraying.This research can provide reference and guidance for reasonable spraying using small UAV on fruit trees,for improving the spraying efficiency.关键词
植保无人机/橘树/航空喷施/雾滴沉积/喷雾参数/正交试验Key words
plant protection UAV/citrus/aerial spraying/droplet deposition/spraying parameter/orthogonal test分类
农业科技引用本文复制引用
陈盛德,兰玉彬,周志艳,廖娟,朱秋阳..小型植保无人机喷雾参数对橘树冠层雾滴沉积分布的影响[J].华南农业大学学报,2017,38(5):97-102,6.基金项目
国家重点研发计划(2016YFD0200700),广东省自然科学基金(2015A030313420) （2016YFD0200700）
