Drift and deposition of ultra-low altitude and low volume application in paddy field  

作　　者：Xue Xinyu Tu Kang Qin Weicai Yubin Lan Huihui Zhang 

机构地区：[1]Nanjing Agricultural University,Nanjing 210014,China [2]Nanjing Research Institute for Agricultural Mechanization,Ministry of Agriculture,Nanjing 210014,China [3]South China Agricultural University,Guangzhou 510642,China [4]USDA-ARS,Fort Collins,CA 80526,USA

出　　处：《International Journal of Agricultural and Biological Engineering》2014年第4期23-28,共6页国际农业与生物工程学报（英文）

基　　金：Special Fund for Agro-scientific Research in the Public Interest(201203025)by Ministry of Agriculture,China;the National High Technology Research and Development Program of China(SS2013AA100303).

摘　　要：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.

关 键 词：paddy field ultra-low altitude low volume UAV droplet drift DEPOSITION 

分 类 号：TG1[金属学及工艺—金属学]