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Study on Deposition Characteristics of the Electrostatic Sprayer for Pesticide Application in Greenhouse Tomato Crops

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  • Zhanhong Guo

    (Key Laboratory for Bionics Engineering of Education Ministry, Jilin University, Changchun 130022, China
    College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China)

  • Jiajia Zhang

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China)

  • Lining Chen

    (Key Laboratory for Bionics Engineering of Education Ministry, Jilin University, Changchun 130022, China)

  • Zhaoyang Wang

    (Key Laboratory for Bionics Engineering of Education Ministry, Jilin University, Changchun 130022, China)

  • Hongbiao Wang

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China)

  • Xufeng Wang

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China)

Abstract

In densely planted solar greenhouses, tomato crops face increasing challenges with pest and disease control due to high temperature and humidity conditions. The existing spraying equipment often suffers from low mechanization and inadequate foliar deposition coverage. This study presents the design of a vertical spray bar electrostatic sprayer, which combines a multi-nozzle vertical spray bar with electrostatic spraying technology, making it suitable for greenhouse applications. In order to obtain the best working parameters of the sprayer, the coverage rate of the front and back sides of the tomato leaves was taken as the performance target. Key influencing factors, including electrostatic voltage, spray pressure, and target distance, were investigated using a multi-factor response surface methodology. Field experiments were conducted in a greenhouse environment based on the optimized parameters to validate the performance. The results indicate that: (1) The factors influencing droplet adherence on the upper surface of tomato leaves ranked in the order of target distance, spray pressure, and electrostatic voltage, while for the underside, the order was electrostatic voltage, target distance, and spray pressure. (2) Under the conditions of electrostatic voltage of 10 kV, spray pressure of 0.7 MPa, and target distance of 35 cm, the sprayer achieves the optimal operation of leaf comprehensive coverage. (3) Compared to non-electrostatic spraying, the greenhouse electrostatic sprayer significantly improved the coverage on both sides of the leaves, enhancing pesticide utilization efficiency. This novel electrostatic sprayer meets the operational requirements for greenhouse crop protection in the Xinjiang region of China.

Suggested Citation

  • Zhanhong Guo & Jiajia Zhang & Lining Chen & Zhaoyang Wang & Hongbiao Wang & Xufeng Wang, 2024. "Study on Deposition Characteristics of the Electrostatic Sprayer for Pesticide Application in Greenhouse Tomato Crops," Agriculture, MDPI, vol. 14(11), pages 1-19, November.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:11:p:1981-:d:1514388
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    References listed on IDEAS

    as
    1. Shuaijie Jing & Longlong Ren & Yue Zhang & Xiang Han & Ang Gao & Baoyou Liu & Yuepeng Song, 2023. "A Simulation and Experiment on the Optimization Design of an Air Outlet Structure for an Air-Assisted Sprayer," Agriculture, MDPI, vol. 13(12), pages 1-14, December.
    2. Xiuyun Xue & Kaixiang Zeng & Nengchao Li & Qin Luo & Yihang Ji & Zhen Li & Shilei Lyu & Shuran Song, 2023. "Parameters Optimization and Performance Evaluation Model of Air-Assisted Electrostatic Sprayer for Citrus Orchards," Agriculture, MDPI, vol. 13(8), pages 1-13, July.
    3. Yahui Luo & Defan Huang & Ping Jiang & Siliang Xiang & Jianfei Liu & Minzi Xu & Yixin Shi, 2023. "Design and Experimental Testing of an Overhead Rail Automatic Variable-Distance Targeted Spray System for Solar Greenhouses," Agriculture, MDPI, vol. 13(9), pages 1-17, September.
    4. Dianlei Han & He Zhang & Guoyu Li & Gaoliang Wang & Xinzhong Wang & Yongcheng Chen & Xuegeng Chen & Xiangyu Wen & Qizhi Yang & Rongqiang Zhao, 2024. "Development of a Bionic Picking Device for High Harvest and Low Loss Rate Pod Pepper Harvesting and Related Working Parameter Optimization Details," Agriculture, MDPI, vol. 14(6), pages 1-18, May.
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