研究了机械精量穴直播与缓释肥定位条施对水稻生长和田间养分迁移的影响。结果表明,与手工撒播和习惯撒施肥相比,机械精量穴直播和定位条施肥均有利于水稻稳健生长,增加有效穗和每穗粒数,提高产量,同时,也有利于降低田间水层氮含量。此外,机械定位条施肥有利于降低氮、钾向土壤深层的渗漏损失,从而提高肥料利用率。 The effects of direct seeding of mechanical precision hole and slow release fertilizer on the growth of rice and nutrient transfer in field were studied. The results showed that, compared with manual broadcasting and conventional spreading of fertilizer, direct injection of mechanical precision hole and positioning bar fertilization all contributed to the steady growth of rice, increased effective panicle and grains per panicle, increased yield and also reduced the field water layer Nitrogen content. In addition, the mechanical positioning of the fertilization is conducive to reducing nitrogen, potassium leakage to the deep soil loss, thereby increasing fertilizer utilization.