Optimization of UAV Spraying in Mountainous Nanguo Pear Orchards: Effects of Canopy Size and Operational Parameters on Droplet Deposition and Penetration
Shuang Guo, Zhuangzhuang Li, Jianghui Luo, Yuzhou Liu, Suyuan Ma, Wanting Sun, Weixiang Yao · 2026
Read Optimization of UAV Spraying in Mountainous Nanguo Pear Orchards: Effects of Canopy Size and Operational Parameters on Droplet Deposition and Penetration by Shuang Guo, Zhuangzhuang Li, Jianghui Luo, Yuzhou Liu, Suyuan Ma, Wanting Sun, Weixiang Yao (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13567670.txt.
Description
Shuang Guo and co-authors tune how spray drones dose pear trees of different sizes in a mountain orchard in China. Growers often spray every tree at the same rate, which wastes chemical on small trees. Their 2026 field study in a Nanguo pear orchard compared a flat rate with two size-based methods, one keyed to leaf wall area and one to tree row volume.
Under the flat rate, small trees caught far more spray, and more reached the ground, than large trees. Size-based dosing cut the volume for small trees by 43 to 49 percent while keeping coverage in the upper and middle canopy. The lower canopy and the backs of leaves stayed hard to reach. Finer droplets sank deeper, while simply spraying more did not improve depth.
Catalog record
| CREATOR | Shuang Guo, Zhuangzhuang Li, Jianghui Luo, Yuzhou Liu, Suyuan Ma, Wanting Sun, Weixiang Yao |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 65 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |