紫大薯除具有普通薯类的营养成分外,还富含硒元素和花青素,既有营养又有药用价值,在国际、国内市场十分走俏,发展前景广阔。为了加快农村种植结构调整步伐,永兴镇农技站挖掘大薯珍稀品种紫大薯,在原永兴村连片示范种植100余亩的基础 In addition to the general potato nutrition, purple sweet potato is also rich in selenium and anthocyanin, both nutritious and medicinal value, and is very popular in the international and domestic markets with broad prospects for development. In order to speed up the adjustment of planting structure in rural areas, Yongxing Town Agricultural Technology Station excavation of rare large potato varieties purple sweet potato, Yongxing Village in the original demonstration of planting more than 100 acres of planted basis