Xuanwei has been the tradition of planting potatoes in large area with high output each mu, and potatoes can be planted in two seasons each year, and the processing period can last for 10 months.

• 云南宣威地区一直有大面积种植马铃薯的传统，不仅每亩单产产量高，且一年能种植两季，加工期长达10个月。