Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer

Ou, Mingxiong; Dai, Shiqun; Jing, Xinbao; Jia, Weidong; Dong, Xiang; Wang, Yunfei; Wu, Minmin

doi:10.3390/agriculture15131331

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Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer

by

Mingxiong Ou

^1,2,

Shiqun Dai

^1,2,*

,

Xinbao Jing

³,

Weidong Jia

^1,2,

Xiang Dong

^1,2,

Yunfei Wang

¹

and

Minmin Wu

¹

School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China

²

Jiangsu Provincial Key Laboratory of Hi-Tech Research for Intelligent Agricultural Equipment, Jiangsu University, Zhenjiang 212013, China

³

China Foma (Group) Co., Ltd., Taizhou 225300, China

^*

Author to whom correspondence should be addressed.

Agriculture 2025, 15(13), 1331; https://doi.org/10.3390/agriculture15131331

Submission received: 26 May 2025 / Revised: 17 June 2025 / Accepted: 19 June 2025 / Published: 20 June 2025

(This article belongs to the Section Agricultural Technology)

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Abstract

This study evaluates the performance of a novel high-clearance air-assisted electrostatic sprayer designed for vineyards and investigates the impact of applied voltage on droplet deposition. This sprayer, which uses a new type of air-assisted electrostatic spray nozzle, could spray three rows of grapes at the same time, significantly improving work efficiency. Field test results show that the middle row of the high-clearance air-assisted electrostatic sprayer deposition effect was better than the left and right rows, and the minimum droplet deposition density inside the grape canopy was 26.4 deposits/cm². The droplet deposition effects of electrostatic spraying were effectively improved, and the average droplet deposition density of the canopy increased by 15.72%. Electrostatic spraying improves the deposition on the outer canopy but reduces deposition on the inner canopy, so electrostatic spraying reduces the penetration of droplets into the canopy. The sprayer’s design proves effective for large-scale operations, offering insights into electrostatic spray technology’s role in precision agriculture.

Keywords: air-assisted electrostatic; droplet deposition; spray penetration coefficient; applied voltage

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MDPI and ACS Style

Ou, M.; Dai, S.; Jing, X.; Jia, W.; Dong, X.; Wang, Y.; Wu, M. Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer. Agriculture 2025, 15, 1331. https://doi.org/10.3390/agriculture15131331

AMA Style

Ou M, Dai S, Jing X, Jia W, Dong X, Wang Y, Wu M. Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer. Agriculture. 2025; 15(13):1331. https://doi.org/10.3390/agriculture15131331

Chicago/Turabian Style

Ou, Mingxiong, Shiqun Dai, Xinbao Jing, Weidong Jia, Xiang Dong, Yunfei Wang, and Minmin Wu. 2025. "Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer" Agriculture 15, no. 13: 1331. https://doi.org/10.3390/agriculture15131331

APA Style

Ou, M., Dai, S., Jing, X., Jia, W., Dong, X., Wang, Y., & Wu, M. (2025). Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer. Agriculture, 15(13), 1331. https://doi.org/10.3390/agriculture15131331

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Study on Spray Deposition Effect of a New High-Clearance Air-Assisted Electrostatic Sprayer

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