Drift and deposition of ultra-low altitude and low volume application in paddy field
Keywords:
paddy field, ultra-low altitude, low volume, UAV, droplet drift, depositionAbstract
Abstract: Field trials were performed to evaluate various techniques for measuring spray deposition and aerial drift during spray application to paddy field. The application of a spraying agent containing the fluorescent dye Rhodamine-B was applied by an unmanned aerial vehicle (UAV) which flew at a height of 5 m, a speed of 3 m/s, and the wind speed of 3 m/s. The results showed that because the downdraft produced by a helicopter rotor increased the penetrability of crops, there is a higher deposition on the upper layer and the under layer than the traditional spraying. The average deposition on the upper layer accounts for 28% of the total spraying ,the deposition on the under layer accounts for 26% of the total spraying. The deposition on the under layer takes up 92.8% of the deposition on the upper layer. Droplets drift data showed that the drift of non-target area took up 12.9% of the total liquid spray. The 90% drifting droplets were located within a range of 8 m of the target area; the drift quantity was almost zero at a distance of 50 m away from the treated area. Keywords: paddy field, ultra-low altitude, low volume, UAV, droplet drift, deposition DOI: 10.3965/j.ijabe.20140704.003 Citation: Xue X Y, Tu Kang, Qin W C, Lan Y B, Zhang H H. Drift and deposition of ultra-low altitude and low volume application in paddy field. Int J Agric & Biol Eng, 2014; 7(4): 23-28.References
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[2] Xue X Y, Lang J, Fu X M. Prospect of aviation plant protection in China. Chinese Agriculture, 2009; (10): 95-97.
[3] Xue X Y, Lan Y B. Agricultural aviation applications in USA. Transactions of the Chinese Society for Agricultural Machinery, 2013; 44(5): 194–199.
[4] Whitney J D, Salyani M, Churchill D B, Knapp J L, Whiteside J O, Littell R C. A field investigation to examine the effects of the sprayer type, ground speed, and volume rate on spray deposition in Florida citrus. J Agric Eng Res, 1989; 42: 275–283.
[5] Hewitt A J. Spray drift: impact of requirements to protect the environment. Crop Protection, 2000; 19: 623–627.
[6] Coates W. Spraying technologies for cotton deposition and efficacy. Applied Engineering in Agriculture, 1996; 12(3): 287–296.
[7] van de Zande J C, Huijsmans J F M, Porskamp H A J, Michielsen J M G P, Stallinga H, Holterman H J, et al. Spray techniques: how to optimise spray deposition and minimise spray drift. Environmentalist, 2008; 28: 9–17.
[8] Franz E,Bouse L F,Carlton J B, Kirk I W, Latheef M A.. Aerial spray deposit relations with plant canopy and weather parameters. Transactions of the ASAE, 1998, 41(4): 959–966.
[9] Ru Y, Zhou H P, Jia Z C, Wu X W, Fan Q N. Design and application of electrostatic spraying system. Journal of Nanjing Forestry University (Natural Science Edition), 2011; 35 (1): 91–94.
[10] Lan Y, Hoffmann W C, Fritz B K, Martin D E, Lopez J D, Jr.. Spray drift mitigation with spray mix adjuvants. Applied Engineering in Agriculture, 2008; 24(1): 5–10.
[11] Fritz B K, Hoffmann W C, Lan Y, Thomson S J, Huang Y.. Low-level atmospheric temperature inversion: Characteristics and impacts on agricultural applications. Agric. Eng. Int.: The CIGR EJournal X: PM-08-001, 2008.
[12] Fritz B K, Hoffmann W C, Jank P A. Fluorescent tracer method for evaluating spray transport and fate of field and laboratory spray applications. Journal of ASTM International, 2011; 8(3).
[13] Fritz B K, Hoffmann W C, Bagley W E. Effects of spray mixtures on droplet size under aerial application conditions and implications on drift. Applied Engineering in Agriculture, 2010; 26(1): 21–29.
[14] Zhou L X, Xue X Y, Sun Z, Qin W C, Zhang S C, Kong W. Experimental study on electrical-driven centrifugal nozzle of aerial sprays. Chinese Agricultural Mechanization, 2011; (1): 107–111.
[15] Xue X Y, Qin W C, Sun Z, Zhang S C, Zhou L X, Wu P. Effects of N-3 UAV spraying methods on the efficiency of insecticides against planthopper and Cnaphalocrocis medinalis. ACTA Phytophyhatica sinica, 2013; (6): 273–277.
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Published
2014-08-25
How to Cite
Xinyu, X., Kang, T., Weicai, Q., Yubin, L., & Huihui, Z. (2014). Drift and deposition of ultra-low altitude and low volume application in paddy field. International Journal of Agricultural and Biological Engineering, 7(4), 23–28. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/935
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Power and Machinery Systems
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