IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v12y2022i8p1093-d871932.html
   My bibliography  Save this article

Characterizing Droplet Retention in Fruit Tree Canopies for Air-Assisted Spraying

Author

Listed:
  • Jun Li

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China
    Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China)

  • Mingxin He

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China)

  • Huajun Cui

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China)

  • Peiyi Lin

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China)

  • Yingyi Chen

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China)

  • Guangxin Ling

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China)

  • Guangwen Huang

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China)

  • Han Fu

    (College of Engineering, South China Agricultural University, Guangzhou 510642, China
    Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China)

Abstract

As a mainstream spraying technology, air-assisted spraying can increase the penetration and droplet deposition in the tree canopy; however, there seems to be less research on the maximum deposition volume of leaves. In this paper, the maximum deposition volume of a single leaf and the attenuation characteristics of droplets in the canopy were studied. By coupling them, the prediction equation of the total canopy droplet retention volume was obtained. The single-leaf test results showed that too small a surface tension reduced the total volume of droplet deposition on the leaf. In this paper, when the Weber number was equal to 144.3, the deposition form changed from particles to a water film, yielding the best deposition effect. The canopy droplet penetration test results show that the air velocity at the outlet increased first and then decreased, and the best effect was achieved when the air velocity at the outlet was 10 m/s. At the same time, when the surface tension of pesticides was 50 mN/m, the effect of canopy droplet deposition was better, which was consistent with the results of the single-leaf test. An average relative error of prediction equation of the total canopy droplet retention volume with 15.6% was established.

Suggested Citation

  • Jun Li & Mingxin He & Huajun Cui & Peiyi Lin & Yingyi Chen & Guangxin Ling & Guangwen Huang & Han Fu, 2022. "Characterizing Droplet Retention in Fruit Tree Canopies for Air-Assisted Spraying," Agriculture, MDPI, vol. 12(8), pages 1-19, July.
  • Handle: RePEc:gam:jagris:v:12:y:2022:i:8:p:1093-:d:871932
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/12/8/1093/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2077-0472/12/8/1093/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Maher Damak & Md Nasim Hyder & Kripa K. Varanasi, 2016. "Enhancing droplet deposition through in-situ precipitation," Nature Communications, Nature, vol. 7(1), pages 1-9, November.
    2. James C. Bird & Rajeev Dhiman & Hyuk-Min Kwon & Kripa K. Varanasi, 2013. "Reducing the contact time of a bouncing drop," Nature, Nature, vol. 503(7476), pages 385-388, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zhipeng Zhao & Huizeng Li & An Li & Wei Fang & Zheren Cai & Mingzhu Li & Xiqiao Feng & Yanlin Song, 2021. "Breaking the symmetry to suppress the Plateau–Rayleigh instability and optimize hydropower utilization," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    2. Ying Zhou & Chenguang Zhang & Wenchang Zhao & Shiyu Wang & Pingan Zhu, 2023. "Suppression of hollow droplet rebound on super-repellent surfaces," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Wu, Jie & Li, Ya-Dong, 2016. "Dynamic performance of a static or throwing droplet impact onto a solid substrate with different properties," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 446(C), pages 158-170.
    4. Jing Lou & Songlin Shi & Chen Ma & Xiaohuan Zhou & Dong Huang & Quanshui Zheng & Cunjing Lv, 2022. "Polygonal non-wetting droplets on microtextured surfaces," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    5. Sun, Haoyang & Lin, Guiping & Jin, Haichuan & Bu, Xueqin & Cai, Chujiang & Jia, Qi & Ma, Kuiyuan & Wen, Dongsheng, 2021. "Experimental investigation of surface wettability induced anti-icing characteristics in an ice wind tunnel," Renewable Energy, Elsevier, vol. 179(C), pages 1179-1190.
    6. Shengteng Zhao & Zhichao Ma & Mingkai Song & Libo Tan & Hongwei Zhao & Luquan Ren, 2023. "Golden section criterion to achieve droplet trampoline effect on metal-based superhydrophobic surface," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    7. Valery Okulov & Ivan Kabardin & Dmitry Mukhin & Konstantin Stepanov & Nastasia Okulova, 2021. "Physical De-Icing Techniques for Wind Turbine Blades," Energies, MDPI, vol. 14(20), pages 1-16, October.
    8. An Li & Huizeng Li & Sijia Lyu & Zhipeng Zhao & Luanluan Xue & Zheng Li & Kaixuan Li & Mingzhu Li & Chao Sun & Yanlin Song, 2023. "Tailoring vapor film beneath a Leidenfrost drop," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:12:y:2022:i:8:p:1093-:d:871932. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.