Effects of sprayer speed, spray distance, and nozzle arrangement angle on low-flow air-assisted spray deposition

文献类型： 外文期刊

第一作者： Dai, Shiqun

作者： Dai, Shiqun;Ou, Mingxiong;Du, Wentao;Dong, Xiang;Jiang, Li;Jia, Weidong;Yang, Xuejun;Zhang, Tie;Ding, Suming

作者机构：

关键词： air-assisted; sprayer speed; spray distance; nozzle arrangement angle; deposit coverage; spray penetration; deposit distribution

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： Air-assisted spraying technology is widely used in orchard sprayers to disturb canopy leaves and force droplets into the plant canopy to reduce droplet drift and increase spray penetration. A low-flow air-assisted sprayer was developed based on a self-designed air-assisted nozzle. The effects of the sprayer speed, spray distance, and nozzle arrangement angle on the deposit coverage, spray penetration, and deposit distribution were investigated in a vineyard by means of orthogonal tests. The optimal working conditions for the low-flow air-assisted sprayer working in the vineyard were determined as a sprayer speed of 0.65m/s, a spray distance of 0.9m, and a nozzle arrangement angle of 20 degrees. The deposit coverages of the proximal canopy and intermediate canopy were 23.67% and 14.52%, respectively. The spray penetration was 0.3574. The variation coefficients of the deposit coverage of the proximal canopy and intermediate canopy, which indicate the uniformity of the deposition distribution, were 8.56% and 12.33%, respectively.

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