对杂交中稻丰两优香1号进行不同播期、密度、施氮量和水分4因素3水平的正交试验,筛选其最佳栽培因子组合。结果表明,播期和施氮量是影响中稻生育进程和产量的主要因素;播期对中稻生育期影响显著,对产量影响极显著,施氮量对中 Orthogonal test of different sowing date, planting density, nitrogen application rate and water content of 4 factors and 3 was conducted on the hybrid mid-highland rice variety “Feng Liang You Xiang 1”, and the best combination of cultivation factors was screened. The results showed that sowing date and nitrogen application rate were the main factors affecting the growth and yield of middle-season rice. The sowing date had a significant effect on the growth period of middle-season rice and had a significant effect on the yield.