【摘要】 针对水稻育秧阶段大棚占地面积大，苗床取土难等问题，探讨了水稻密苗机插栽培技术对产量和经济效益的影响，为水稻密苗机插栽培技术的应用提供理论依据。本研究以中熟水稻品种“吉粳305”为试验材料，采用大田试验，设低播种量（CK）、中播种量（B₁）、高播种量（B₂）3个播种量处理，分析不同播种量处理对水稻产量、成本投入的影响。结果表明，在相同肥水管理条件下，B₁处理水稻实收产量与对照相比无显著差异，但生产成本降低。更多还原

【Abstract】 Aiming at the production problems such as large area of greenhouse in rice seedling stage and difficult to take soil from seedbed soil, we discussed the impact of rice dense seedling mechanical insertion cultivation technology on its yield and economic benefits, so as to provide a theoretical basis for the application of rice dense seedling mechanical insertion cultivation technology. The medium-maturity variety "Jijing 305" was used as the test material, and the field test was conducted to analyze the effects of different seeding rate treatments on rice yield and economic benefits by setting three seeding rate levels, namely, low seeding rate treatment（CK）, medium seeding rate treatment（B₁）, and high seeding rate treatment（B₂）. The results showed that under the same fertilizer and water management conditions, there was no significant difference in the harvested yield of rice in the B₁ treatment of dense seeding machine insertion compared with that of conventional machine inserted rice, but the production cost was lower than that of conventional cultivation technology inputs.更多还原