Most appropriate nozzle of six-rotor UAV for prescribed spraying liquid in tea plantation under effects of downwash flow structure in hover

IF 2.5 2区农林科学 Q1 AGRONOMY Crop Protection Pub Date : 2024-06-22 DOI:10.1016/j.cropro.2024.106819

Nai-Hong Hu , Wen-Xuan Zhou , Lin Zhu , Yan-Cheng Li , Xin-Yu Xie , Ru-Yan Hou , Cheng-Long Yin

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Abstract

Downwash flow structure development has been an important challenge for Unmanned Aerial Vehicle (UAV) to spray tea although the UAV spray is commonly used in crops, dominantly due to the downwash flow structure development in tea plantations more severe than those in crops. Here the UAV spray for tea cultivation is improved through the relationship between nozzle and spraying liquid, or, by choosing the most appropriate nozzle for the prescribed spraying liquid. As a preliminary step, the UAV spray has been studied under effects of downwash flow structure in hover. The six-rotor UAV with four commonly-used nozzles (VP110-02, XR110-02, FPV110-02, and KZ80-04) is used as the representative. Bifenthrin, widely sprayed for tea cultivation, is used as the prescribed spraying liquid. A three-dimensional model of nozzle & flow fragmentation is developed to estimate the nozzle performances. This study demonstrates that nozzle KZ80-04 is the most suitable for Bifenthrin in tea plantation and provides insight into designing effective UAV spray in crops.

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悬停时下冲流结构影响下的六旋翼无人机用于茶园规定喷洒液体的最合适喷嘴

虽然无人机喷雾在农作物中得到了普遍应用，但下冲流结构的发展一直是无人机喷洒茶叶的一个重要挑战，这主要是由于茶园中的下冲流结构发展比农作物中的下冲流结构发展更为严重。在此，将通过喷嘴和喷洒液体之间的关系，或者通过为规定的喷洒液体选择最合适的喷嘴，来改进用于茶叶种植的无人机喷雾。作为第一步，研究了无人机喷雾在悬停时的下冲流结构影响。以配备四个常用喷嘴（VP110-02、XR110-02、FPV110-02 和 KZ80-04）的六旋翼无人机为代表。茶叶栽培中广泛喷洒的联苯菊酯被用作规定的喷洒液体。建立了喷嘴和流动破碎的三维模型，以估算喷嘴的性能。这项研究表明，KZ80-04 喷嘴最适合茶园喷洒联苯菊酯，并为设计有效的农作物无人机喷雾提供了启示。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.