以常规水稻品种秀水14为供试品种，比较了机械插秧、行走式机械直播和无人机直播3种种植方式的产量、成本和效益，分析了不同种植方式的工作效率与群体均匀性。结果表明，无人机直播的产量与机械插秧、行走式机械直播无显著差异，但其具有播种效率高、群体生长均衡、种植成本低的特点。最后小结了无人机直播技术要点。

This paper compared the yield, cost and benefit of mechanical transplanting, walking mechanical direct seeding and drone direct seeding, and analyzed the efficiency and group uniformity of different planting methods with conventional japonica rice variety Xiushui 14 as the test variety. The results showed that the yield of rice drone direct seeding was not significantly different from that of machine transplanting and walking mechanical direct sowing, but it had the characteristics of high sowing efficiency, balanced population growth and low planting cost. Technical key points of drone direct seeding was proposed in this paper.