Abstract: Precision planting technology is an important part of agricultural mechanization production, and also an important means of saving cost and increasing profits in largescale farm production. Accurate control of seed motion is the core of precision planting technology and the key to improve the quality of singleseed precision planting. From the perspective of seed motion stages in precision seeding operation, the overall situation of seed motion control method of the singleseed precision planter was discussed, and the main technical problems in precision seeding operation were pointed out. In view of the above technical problems and combined with the current production situation of China, the future development trend of precision planting technology is forecasted. Specific suggestions are given in terms of precision seeding technology, seed guide technology, seed bouncing inhibition technology, and soil covering and compaction technology. The research provides reference for innovation design and application promotion of precision planter.

Key words: precision planting, singleseed rate, seed motion, control method

摘要： 精密播种技术是农业机械化生产的重要组成部分，也是规模化种植实现节本增效的重要手段。对种子的运动行为的精准调控，是精密播种技术的核心，也是改善单粒精播质量的关键。从播种机种子运动各环节角度，在充种清种、导种输种、投种落地三个阶段的种子运动调控以及后续触土部件对种子位置的影响等方面，综述单粒精播机械中种子运动调控方法的国内外研究现状和进展。从排种器、导种输种装置、种子落地时的弹跳滚动、后续触土部件等方面指出精密播种过程中存在的应着重解决的技术问题，并针对以上技术问题结合我国的生产现状对今后精密播种机种子运动调控方法发展趋势作展望，指出了精密排种技术、导种输种技术、种子落地防弹跳技术、覆土镇压技术的具体发展建议，为精密播种技术研究及装备创新设计和应用推广提供参考。

关键词: 精密播种, 单粒率, 种子运动, 调控方法