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Analysis and Experiment on the Seed Metering Mechanism of Multi-Grain Cluster Air Suction Type Rice ( Oryza sativa L.) Hill Direct Seed Metering Device

Author

Listed:
  • Han Tang

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Changsu Xu

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Fangyu Guo

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Zhigang Yao

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Yeming Jiang

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Rui Guan

    (School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Xiaobo Sun

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

  • Jinwu Wang

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

Abstract

This paper aims to solve the problem of high reseeding rates and mis-seeding rates in the rice multi-grain hole direct seeding process. A multi grain cluster air suction type rice hill direct seed metering device was developed, and its seeding mechanism was analyzed. Based on CFD-DEM coupling simulation and bench tests, this study explored and optimized the performance of the seed metering device, and carried out the seeding adaptability test. The simulation results were as follows: when the negative pressure was −5 kPa, the static pressure, dynamic pressure and velocity of the flow field reached the maximum. When the negative pressure was −4 kPa, the qualification index was 89.62%, the reseeding index was 4.36%, and the mis-seeding index was 6.02%. The results of the orthogonal rotation combination test of three factors and five levels showed that when the rotation speed, negative pressure and the length of stirring brush were 20.70 rpm, −4.0 kPa and 10.50 mm respectively, the seed metering performance was the best, the qualification index was 90.85%, the reseeding index was 4.41% and the mis-seeding index was 4.74%. The seed metering device had strong adaptability to the sowing of different rice varieties, and met the agronomic requirements of direct seeding and seeding in rice holes.

Suggested Citation

  • Han Tang & Changsu Xu & Fangyu Guo & Zhigang Yao & Yeming Jiang & Rui Guan & Xiaobo Sun & Jinwu Wang, 2022. "Analysis and Experiment on the Seed Metering Mechanism of Multi-Grain Cluster Air Suction Type Rice ( Oryza sativa L.) Hill Direct Seed Metering Device," Agriculture, MDPI, vol. 12(8), pages 1-18, July.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:8:p:1094-:d:871950
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    References listed on IDEAS

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    1. Nauman Riyaz Maldar & Cheng Yee Ng & Lee Woen Ean & Elif Oguz & Ahmad Fitriadhy & Hooi Siang Kang, 2020. "A Comparative Study on the Performance of a Horizontal Axis Ocean Current Turbine Considering Deflector and Operating Depths," Sustainability, MDPI, vol. 12(8), pages 1-22, April.
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    Cited by:

    1. Xu Chen & Xun He & Wanzhang Wang & Zhe Qu & Yuan Liu, 2022. "Study on the Technologies of Loss Reduction in Wheat Mechanization Harvesting: A Review," Agriculture, MDPI, vol. 12(11), pages 1-18, November.

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