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A Seedbed Clearing and Shaping Device for Dry Direct-Seeded Rice

Author

Listed:
  • Hui Li

    (Hunan Academy of Agricultural Sciences, Changsha 410125, China)

  • Longyu Fang

    (Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China)

  • Pingping Yuan

    (Hunan Academy of Agricultural Sciences, Changsha 410125, China)

  • Wei Lu

    (Hunan Academy of Agricultural Sciences, Changsha 410125, China)

  • Wenwu Yang

    (Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
    Huangpu Innovation Research Institute, South China Agricultural University, Guangzhou 510725, China
    Maoming Branch, Guangdong Laboratory for Modern Agriculture, Maoming 525000, China)

Abstract

The soil in some areas of northern China is heavy owing to the presence of clay and stones, which significantly affects the normal operation of a planter as well as the growth of rice. In this regard, this study proposes a seedbed clearing and shaping device for dry direct-seeded rice, which can be used to remove stones in the seeding area, break soil blocks, for soil leveling, and groove forming. The overall structure and roller of the proposed device was developed based on theoretical calculations, discrete element modeling (DEM) simulations, and field tests. The soil-mixing tooth was distributed on the roller based on the double-helix rule, and the two sides of the helix were configured according to the right-hand and left-hand. Subsequently, DEM was used to develop a 3 3 box-bench design. According to the agronomic requirements and operating speed ratio, the forward speed was set to 0.5 m/s. Furthermore, the optimization parameters combination of the device obtained by simulation experiments was: forward speed 0.5 m/s, soil depth 61 mm, and rotation speed 110 r/min, which obtained a stone removal rate of 85.65%, stone removal efficiency of 35.47 pieces/m, operating resistance of 719.23 N, and torque of 174.89 Nm. The field verification test results indicated that the stone removal rate was 77.23% under the optimization parameters combination, and the mean relative error of the simulated experiments value was 8.42%, which showed that the performance of the proposed device functioned stably and reliably, thereby providing a high-quality seedbed for sowing and rice growth. The developed device represents a useful solution for the seedbed clearing and shaping.

Suggested Citation

  • Hui Li & Longyu Fang & Pingping Yuan & Wei Lu & Wenwu Yang, 2022. "A Seedbed Clearing and Shaping Device for Dry Direct-Seeded Rice," Agriculture, MDPI, vol. 12(10), pages 1-18, October.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:10:p:1740-:d:949505
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    References listed on IDEAS

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    1. Tuong, T. P. & Bouman, B. A. M., 2003. "Rice production in water-scarce environments," IWMI Books, Reports H032635, International Water Management Institute.
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    Cited by:

    1. Mustafa Ucgul & Chung-Liang Chang, 2023. "Design and Application of Agricultural Equipment in Tillage Systems," Agriculture, MDPI, vol. 13(4), pages 1-3, March.

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