Application performance of fuel-powered multi-rotor unmanned aerial vehicles in maize plant protection
Abstract
Abstract: In recent years, fuel-powered multi-rotor unmanned aerial vehicles (UAV) have been increasingly applied in high-stalk crops, because of their stronger rotor wind field. More and more attention has been paid to UAV application performance in high-stalk crops. Maize is a kind of typical high-stalk crops and it is also one of the main food crops and its planting area ranks third inChina, second only to wheat and rice. In this study, a field test was conducted to investigate the application performance in maize crop protection of fuel-powered UAVs and droplets deposition effect on different canopies and leaf positions. The results show that: Due to the assistance of rotor wind field, the coverage rate of droplets in the three maize canopies is all high, but the deposition uniformity in the middle and upper canopy is poor. For the middle and lower leaves of maize, as the height of the leaves position increases, the droplets deposition on the maize leaves increases slowly. For the middle and upper leaves, as the height of the leaves position increases, the droplets deposition increases sharply. Compared with the coverage rate of droplets on the 7th leaf, the coverage rate of the droplets on the 10th maize leaf has increased by 127.12%. For the middle and upper canopy, the coverage rate of droplets in the maize leaf sheath is the highest, followed by the middle leaves, and the lowest tip. For the middle and lower canopy, the coverage rate of the droplets in the middle of the maize leaves is the highest, followed by the sheath, and the lowest tip.
Keywords: droplets, coverage rate, maize, fuel-powered UAV
DOI: 10.33440/j.ijpaa.20210402.180
Citation: Zhang H Y, Lan Y B, Xu T Y, Yu F H. Application performance of fuel-powered multi-rotor unmanned aerial vehicles in maize plant protection. Int J Precis Agric Aviat, 2021; 4(2): 36–39.
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Han B S, Tong L H, Chen X L. Occurrence characteristics and control measures of maize diseases and insect pests. Journal of Modern Agricultural Science and Technology, 2021(8): 80–81.
Zheng X H. High-yield maize planting techniques and common pest
control measures. Journal of Agricultural Technology and Equipment, 2021(3): 154–156
Ming S L, Jiang S f. Analysis on the control technology of maize diseases and pests. Journal of Henan Agricultural, 2020(17): 30–31
Zhang H Y, Lan Y B, Wen S, et al. Research progress in rotor airflow model of plant protection UAV and droplet motion mechanism. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(22): 1–12. doi: 10.11975/ j.issn.1002-6819.2020.22.001
Xue X Y, Gao C Y, Fu X M, et al. R & D of high-efficiency, wide-coverage and long-range combined spray gun. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2001, 17(4): 70–74. doi: 10.3321/j.issn:1002-6819.2001.04.016
Liu W, Wang X C, Ding W M, et al. Design and characteristics analysis of variable spraying control system for knapsack sprayer. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(9): 16–21. doi: 10.3969/j.issn.1002-6819.2012.09.003
Zhang T. Experimental Study and CFD Simulation of Air-assisted System on Super-high Clearance Boom Sprayer. Beijing: Chinese Academy of Agricultural Mechanization Sciences, 2012.
Zhang D Y, Lan Y B, Chen L P, et al. Current status and future trends of agricultural aerial spraying technology in China. Transactions of the Chinese Society of Agricultural Engineering, 2014, 45(10): 53–59. doi: 10.6041/j.issn.1000-1298.2014.10.009
Xue X Y, Tu K, Qin W C, et al. Drift and deposition of ultra-low altitude and low volume application in paddy field. International Journal of Agricultural and Biological Engineering, 2014(7): 23–28. doi: 10.3965/ j.ijabe.20140704.003
Zhang H Y, Lan Y B, Wen S, et al. Operational effects of unmanned helicopters for pesticide spraying in rice field. Journal of South China Agricultural University, 2019, 40(1): 116–124. doi: 10.7671/j.issn.1001- 411X.201802028
Yang F B, Xue X Y, Cai C, et al. Effect of down wash airflow in hover on droplet motion law for multi-rotor unmanned plant protection machine. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2018, 34(2): 64–73. doi: 10.11975/ j.issn.1002-6819.2018.02.009.
Wen S, Han J, Lan Y B, et al. Influence of wing tip vortex on drift of single rotor plant protection unmanned aerial vehicle. Transactions of the Chinese Society for Agricultural Machinery, 2018, 49(8):127–137. doi: 10.6041/j.issn.1000-1298.2018.08.015
Shen W, Hu J, Ning Z H, et al. Numerical analysis and validation of spray distributions disturbed by quad-rotor drone wake at different flight speeds. Computers and Electronics in Agriculture, 2019. doi: https://doi.org/10.1016/j.compag.2019.105036
Qin W C, Xue X Y, Zhou L X, et al. Effects of spraying parameters of unmanned aerial vehicle on droplets deposition distribution of maize canopies. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2014, 30(5): 50–56. doi: 10.3969/j.issn.1002-6819.2014.05.007
Gao Y Y, Zhang Y T, Zhao Y C, et al. Primary studies on spray droplet distribution and control effects of aerial spraying using unmanned aerial vehicle (UAV) against the maize borer. Journal of Plant Protection, 2013, 39(2): 152–157. doi: 10.3969/j.issn.0529-1542.2013.03.02.031
Yang S, Wang G B, Yang D B, et al. Preliminary study on low-altitude spraying of Fenoxycarb by UAV to control Asian maize borer. Journal of Botany, 2015, 35(2): 59–62.
Yang X W, Dai M L, Song J L, et al. Effect of droplet size, leaf characteristics and angle on pesticide deposition. Transactions of the CSAE, 2012, 28(3): 70–73. doi: 10.3969/j.issn.1002-6819.2012.03.013
Dorr G J, Wang S, Mayo L C, et al. Impaction of spray droplets on leaves: Influence of formulation and leaf character on shatter, bounce and adhesion. Experiments in Fluids, 2015, 56(7): 1–17. doi: 10.1007/s00348-015- 2012-9
Song J L, Wang B, Zeng A J, et al. Deposition part analysis and microscopic test of spray droplets on rice leaves. 2013, 44(04): 54–58+76. doi: 10.6041/j.issn.1000-1298.2013.01.010
Ding W Long, Jin M J, Luo L F, et al. Behavior analysis of spray droplet interacting with plant leaves based on virtual model. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2017, 33(14): 48–56. doi: 10.11975/j.issn.1002-6819.2017.14.006
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