为探索水稻机械化精量穴直播技术推广应用的可行性，研究不同种植密度（纵横行）、不同播种量（穴粒数）、不同施肥水平对水稻生育期、分蘖动态、经济性状和产量的影响，通过比较分析，选择最佳栽培管理方式，为推广机械化精量穴直播技术提供理论依据。试验示范结果表明，水稻机械化精量穴直播技术是一项省工节本、高产高效的先进栽培技术，颠覆了传统的水稻人工直播栽培方式，适宜瑞安当地水稻栽培推广应用。

In order to explore the feasibility of popularization and application of mechanized precision hole direct seeding technology for rice, the effects of different planting density, seeding rate and fertilization levels on growth period, tiller dynamics, economic characters and yield of rice were studied. Through comparison and analysis, the best cultivation and management mode were selected to provide theoretical basis for popularizing mechanized precision hole direct seeding technology. The results showed that the mechanized and precision hole direct seeding technique of rice is an advanced cultivation technique with low cost, high yield and high efficiency.