川山紫是刚从日本引进的水果型甘薯珍品，兽皮和薯肉为紫黑色，煮熟后果肉为黑色。在时尚食素、食野、吃黑的现在，市场前景极为看好。其特点是： １．品质优 据日本农产品检测中心分析，川山紫红薯的营养含量明显高于其它薯类，其赖氨酸、铜、锰、钾、锌的含量高于一般红薯３? Chuan Shan purple is a fruit-type sweet potato just introduced from Japan treasures, skins and flesh is purple black, cooked meat is black. In the fashionable vegetarian, wild food, eat the black now, the market prospects are very promising. Its characteristics are: 1. According to the Japan Agricultural Products Testing Center analysis, Chuan Shan purple sweet potato nutritional content was significantly higher than other yam, lysine, copper, manganese, potassium, zinc content higher than the average sweet potato 3?