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Journal of Chinese Agricultural Mechanization

Journal of Chinese Agricultural Mechanization ›› 2025, Vol. 46 ›› Issue (5): 12-18.DOI: 10.13733/j.jcam.issn.2095-5553.2025.05.003

• Agriculture Mechanization and Equipment Engineering • Previous Articles     Next Articles

Development and experiment of potato seedling cover device with soil

Wang Hai1, Liu Quandong2, Sun Wei3, Che Xinglong2   

  1. 1. Dingxi Agricultural Mechanization Technology Exten Sion Station, Dingxi, 743000;
    2. Agricultural Machinery Branch of Longxi County Vocational and Technical School, Longxi, 748100, China;
    3. School of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, 730070, China
  • Online:2025-05-15 Published:2025-05-14

马铃薯苗带覆土装置研制与试验

王海1,刘泉东2,孙伟3,车兴龙2   

  1. 1. 定西市农业机械化技术推广站,甘肃定西,743000; 2. 陇西县职业技术学校农机分校,甘肃陇西,748100;
    3. 甘肃农业大学机电工程学院,兰州市,730070
  • 基金资助:
    国家自然科学基金资助项目(52165028);甘肃省高等学校产业支撑计划(2022CYZC—42)

Abstract:  In response to the problems of low soil coverage qualification rate, high fluctuation rate, and severe soil compaction in the traditional potato seedling soil covering machine in the northwest arid area, based on the agronomic requirements of potato seedling covering cultivation in the whole area of plastic film covering in the northwest arid area, a potato seedling soil covering device was designed through theoretical analysis and discrete element simulation, with a focus on analyzing the soil lifting device, lateral opposite row covering device,the working mechanism of the trenching and shaping device and the hole punching device, and their structural parameters were determined. With low soil coverage qualification rate and fluctuation rate of the seedling belt as indicators, a lateral opposite row soil covering device with a screw conveyor speed of 200 r/min was obtained by simulation and optimization.The field experiments show that the fluctuation rate of soil cover  onpotato seedling operated by the newly developed potato seedling soil covering machine is smaller than that of the potato fertilization, sowing, ridging, and full film covering seed row cover soil machine previously studied by the research team. At the same time, the qualified rate of seed row cover soil thickness and width are 92.3% and 91.8%, respectively, whilethe degree of damage to the plastic film daylighting surface is 49.8 mm/m2, This indicates that the designed potato seedling soil covering machine meets the requirements of the national potato planting machine and film covering planting machine.

Key words: potatoes, seedling belt covered with soil, side to side covering with soil, perforation on film

摘要: 针对西北旱区传统马铃薯苗带覆土作业机存在覆土合格率低、苗带波动率大、苗带土壤板结严重等问题,基于西北旱区马铃薯全域地膜覆盖、苗带覆土栽培农艺要求,通过理论分析和离散元仿真,设计马铃薯苗带覆土装置。重点解析苗带提土装置、侧向对行覆土装置、开沟整形装置和膜上打孔装置作业机理,确定其结构参数。以覆土合格率、苗带波动率为指标,仿真模拟优化得到侧向对行覆土装置螺旋输土器转速为200 r/min。田间试验表明,马铃薯苗带覆土作业机作业后,相比于马铃薯施肥播种起垄全膜覆盖苗带覆土作业机覆土波动率变小,同时测得苗带覆土厚度合格率为92.3%、苗带覆土宽度合格率为91.8%,地膜采光面破损程度为49.8 mm/m2,表明设计的马铃薯苗带覆土作业机符合国家马铃薯种植机以及覆膜种植机的要求。

关键词: 马铃薯, 苗带覆土, 侧向对行覆土, 膜上打孔

CLC Number: