What are the advantages of planting sweet potatoes in Wendeng?

Sandy loam with abundant sunshine, good ventilation and rapid drainage. Wendeng District belongs to Weihai City, Shandong Province, China, and is located in the east of Shandong Peninsula. Wendeng sweet potatoes are mostly planted in hilly areas with sandy loam, abundant sunshine, good ventilation and fast drainage. The produced sweet potato has uniform head, smooth skin, bright color, less gluten but more noodles, moderate sugar content and rich starch.