| 肖 勇1
，王思威 1
，雷春媚 1，2，尹 飞 1
，彭争科 1
，刘艳萍 1
，李振宇 1
，王潇楠 1.玉米不同生育期多旋翼植保无人机防治草地贪夜蛾施药参数优化[J].广东农业科学,2024,51(8):31-39 |
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玉米不同生育期多旋翼植保无人机防治草地贪夜蛾施药参数优化 |
| Optimization of Operation Parameters for Multi-rotor Plant Protection Unmanned Aerial Vehicle (UAV) Spraying Chlorantraniliprole to Control Spodoptera frugiperda at Different Growth Stages of Maize |
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| DOI：10.16768/j.issn.1004-874X.2024.08.004 |
| 中文关键词: 草地贪夜蛾 植保无人机 生育期 施药参数 雾滴沉积分布 防治效果 |
| 英文关键词: Spodoptera frugiperda plant protection UAV growth stage operation parameter droplet deposition
distribution control efficiency |
| 基金项目:国家重点研发计划项目（2021YFD1400704） |
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| 中文摘要: |
| 【目的】比较多旋翼植保无人机在玉米不同生育期施药参数对作业质量和草地贪夜蛾（Spodoptera
frugiperda）防治效果的影响，筛选最佳施药参数，为草地贪夜蛾精准用药提供科学依据。【方法】以大疆 T20 型
六旋翼植保无人机为对象，分别在玉米大喇叭口期和抽穗期对作业高度、作业速度和喷头型号进行沉积分布优选
试验以及调查药后 7 d 玉米上草地贪夜蛾的虫口减退率和防治效果。【结果】玉米大喇叭口期：当无人机飞行速度
为 4 m/s、高度为 2.5 m、喷头型号为 SX110015VS 时，雾滴归一化平均沉积量最高为 0.45 μL/cm2
；当无人机飞行速
度为 4 m/s、高度为 1.5 m、喷头型号为 SX110015VS 时，雾滴密度和覆盖率平均值均最高、分别为 44.92 个 /cm2 和
9.31%。玉米抽穗期：当无人机飞行速度为 4 m/s、高度为 2.5 m，喷头型号为 SX110015VS 时，雾滴归一化平均沉
积量、雾滴密度和覆盖率平均值均最高，分别为 0.50 μL/cm2
、82.92 个 /cm2 和 7.67%。【结论】在玉米大喇叭口期
和抽穗期施药参数选择时需结合田间实际病虫害发生情况，当无人机飞行速度为 4 m/s、飞行高度为 2.5 m，喷头型
号为 SX110015VS 时，雾滴沉积量均最高，且施药后 7 d 对草地贪夜蛾的校正防效均在 85% 以上。 |
| 英文摘要: |
| 【Objective】The effects of operation parameters of multi-rotor plant protection unmanned aerial vehicle (UAV)
at different growth stages of maize on deposition quality and the control efficacy of Spodoptera frugiperda were compared to
select the optimal operation parameters, with an aim to provide scientific basis for precise pesticide application of S. frugiperda.
【Method】DJI T20 six-rotor plant protection UAV was used as the research object, the operation parameters including flight
altitude, flight speed and nozzle type were tested for optimization of deposition distribution at the trumpet stage and heading
stage of maize, and the population decline rate and control effect of S. frugiperda 7 d after the application of pesticides were
investigated.【Result】At trumpet stage of maize, when a SX110015VS nozzle operated at a flight speed of 4 m/s and at a
flight altitude of 2.5 m above the maize canopy, the maximum normalized average droplet deposition was 0.45 μL/cm2
. When a
SX110015VS nozzle operated at a flight speed of 4 m/s and a flight altitude of 1.5 m, both average droplet coverage and average
droplet density were the highest, which were 44.92 drops/cm2 and 9.31%, respectively. At heading stage of maize, the normalized
average droplet deposition, average droplet coverage and average droplet density were the highest when a SX110015VS
nozzle operated at a flight speed of 4 m/s and a flight altitude of 2.5 m, which were 0.50 μL/cm2
, 82.92 drops/cm2 and 7.67%,
respectively.【Conclusion】The actual occurrence level of pests should be taken into consideration in the selection of operation
parameters at trumpet stage and heading stage of maize. The highest droplet deposition was achieved when the UAV flew at a
speed of 4 m/s, an altitude of 2.5 m and a nozzle type of SX110015VS, the corrected control efficiency was more than 85% after
7 days of application |
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