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An Intermittent Fertilization Control System for Fruit Tree Crown Detection

Author

Listed:
  • Hao Yin

    (College of Engineering and Technology, Southwest University, Chongqing 400715, China
    Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, Chongqing 400715, China)

  • Pengyu Jing

    (School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China)

  • Chen Ma

    (College of Engineering and Technology, Southwest University, Chongqing 400715, China
    Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, Chongqing 400715, China)

  • Liewang Cao

    (College of Engineering and Technology, Southwest University, Chongqing 400715, China
    Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, Chongqing 400715, China)

  • Chengsong Li

    (College of Engineering and Technology, Southwest University, Chongqing 400715, China
    Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, Chongqing 400715, China)

  • Lihong Wang

    (College of Engineering and Technology, Southwest University, Chongqing 400715, China
    Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, Chongqing 400715, China)

Abstract

In light of the current dearth of strip intermittent fertilization devices in standardized orchards, this study presents the design of an intermittent fertilization control system based on fruit tree crown detection, developed with the objective of meeting the agronomic requirements of strip furrow fertilization in standardized orchards. The initial stage of the process entails the design of the essential components of the fertilization apparatus, followed by the construction of the intermittent fertilization control system. The ultrasonic sensor was employed as the fruit tree crown detection module, and a mathematical model of fertilization speed was constructed to achieve uniform intermittent fertilization. Furthermore, in order to enhance the responsiveness and reliability of the fertilization servo motor, MATLAB Simulink was employed to assess the dynamic performance of the system under disparate control strategies. Ultimately, to validate the simulation outcomes, a field trial was conducted to assess the precision and uniformity of intermittent fertilization. The results demonstrate that the dynamic performance of the system under the fuzzy PID control strategy is optimal, and the coefficient of variation of the fertilizer uniformity of the intermittent fertilization device is less than 7%. The mean effective fertilization rate exceeded 85%, with the primary indices satisfying the agronomic criteria.

Suggested Citation

  • Hao Yin & Pengyu Jing & Chen Ma & Liewang Cao & Chengsong Li & Lihong Wang, 2024. "An Intermittent Fertilization Control System for Fruit Tree Crown Detection," Agriculture, MDPI, vol. 14(11), pages 1-19, October.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:11:p:1867-:d:1504764
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    References listed on IDEAS

    as
    1. Lingdi Tang & Wei Wang & Chenjun Zhang & Zanya Wang & Zeyu Ge & Shouqi Yuan, 2024. "Linear Active Disturbance Rejection Control System for the Travel Speed of an Electric Reel Sprinkling Irrigation Machine," Agriculture, MDPI, vol. 14(9), pages 1-24, September.
    2. Yumeng Gu & Chunjie Qi & Fuxing Liu & Quanyong Lei & Yuchao Ding, 2023. "Spatiotemporal Evolution and Spatial Convergence Analysis of Total Factor Productivity of Citrus in China," Agriculture, MDPI, vol. 13(6), pages 1-14, June.
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