Sweet potato is a kind of food crop with high yield and strong adaptability, which is planted in most areas of China. Sweet potato is also called sweet potato, sweet potato, sweet storage, Zhu potato, golden potato, Fanru, red yam, jade pillow potato, sweet potato, sweet potato, sweet potato, sweet potato, goose, sweet potato and so on. Sweet potato is panicum miliaceum, and the underground part presents a round, oval or spindle-shaped root. Sweet potato is native to South America and the big and small Antilles, and is widely cultivated in tropical and subtropical areas all over the world. Sweet potato was first planted in Mexico and Colombia in central America, and was brought to the Philippines and other countries by the Spanish. Sweet potato was first introduced to China during the Wanli period in the late Ming Dynasty, and entered China by three routes from Yunnan, Guangdong and Fujian. Chen Zhenlong, a scholar in the Ming Dynasty, was called "the father of sweet potato".