The study looked at how different planting methods and ecological conditions affect nitrogen accumulation and distribution in rice plants. They found that in areas with low soil fertility and high light intensity, rice plants had lower nitrogen content but higher nitrogen use efficiency. Planting 50-day-old seedlings and using single seedling optimized-broadcasting treatment improved nitrogen accumulation and translocation in different growth stages. The choice of planting method also influenced rice yield, with specific methods being more effective in different ecological conditions. Overall, selecting the right planting method can help increase nitrogen accumulation and grain yield in rice plants.