| 蒙艳华,王美美,姚伟祥.植保无人飞机不同施药模式对Y形梨树雾滴沉积分布研究[J].中国南方果树,2020,49(6): |
| 植保无人飞机不同施药模式对Y形梨树雾滴沉积分布研究 |
| Droplet distribution of two flight modes using unmanned aerial vehicle (UAV) on Y-shape pear trees |
| 投稿时间：2020-10-12 修订日期：2020-10-12 |
| DOI： |
| 中文关键词: 梨园 Y形梨树 植保无人飞机 施药模式 雾滴沉积分布 |
| 英文关键词:Pear orchard Y-shape pear tree UAV operation mode droplet distribution |
| 基金项目:河南省科技攻关项目“基于田间环境的植保无人机喷施参数优化技术”（202102110114）资助。 |
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| 中文摘要: |
| 为了研究油动单旋翼植保无人飞机采用“行间飞”和“Y间飞”2种飞行施药模式对Y形梨园进行喷雾作业后雾滴在Y形梨树冠层中的沉积分布规律，以30 g/L的诱惑红85水溶液为喷雾剂，铜版纸为雾滴收集卡，设计了4种不同作业速度梯度对Y形梨树喷雾效果试验，研究对比了不同飞行速度条件下2种飞行施药模式的雾滴沉积分布情况。试验结果表明：采用“行间飞”飞行施药模式喷雾时，雾滴在Y形梨树主枝外部的沉积密度高于在内部的沉积密度雾滴，且飞行速度为2 m/s和3 m/s时的沉积密度比飞行速度为4 m/s和5 m/s的沉积密度显著偏高。“Y间飞”飞行施药模式下雾滴在Y形梨树冠层不同位置的雾滴沉积分布更均匀。在风速小于1.3 m/s的微风条件下，当使用油动单旋翼植保无人飞机以距离Y形梨树冠层顶部2 m的高度喷雾作业时，应当采用“Y间飞”飞行施药模式，同时飞行速度以2?3 m/s为宜，此时雾滴的沉积密度在冠层内部和外部均大于15个/cm2。研究结果可以为使用植保无人飞机防控梨园病虫害提供喷雾技术依据。 |
| 英文摘要: |
| Droplet distribution on Y-shape pear tree canopy using single-rotor oil-powered plant protection UAV with Inter-row flight mode and Intra-Y flight mode was studied in this experiment. In order to collect droplets in the canopy, 30 g/L Allura red 85 aqueous solution was used as tracer and coated paper was used as droplet collection card. Four flight velocities were applied in two flight modes respectively. The results showed that droplet deposition in the outer canopy was significantly better than that in the inner canopy by using both flight modes, and droplet densities of 2 m/s and 3 m/s were significantly higher than that of 4 m/s and 5 m/s when Inter-row flight mode was applied. The droplet deposition of Intra-Y fight mode was more uniform than that of Inter-row. When wind speed was less than 1.3 m/s, droplet density above 15 deposits/cm2 was obtained by using Intra-Y flight mode with a flight height of 2 m above top canopy and a flight velocity of 2~3 m/s. In practical operation, Intra-Y flight mode is recommended. |
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