The study found that to achieve high rice yield in Xindao 11, it is best to use low plant density, medium nitrogen levels, and apply nitrogen at different growth stages. The ideal population density is over 28.13 bunches per square meter, with a nitrogen application rate between 255.0 to 352.5 kg per hectare. The recommended ratio of nitrogen application before planting, during tillering, and at flowering is 4:5:1. Following these strategies can lead to an expected rice yield of 9729.5 to 9864.8 kg per hectare.