1. Qiaotou sweet potatoes are one of the famous specialties of Chengmai County, Hainan Province. The planting base is located in Shatu Village, Qiaotou Town, Chengmai County. The geology of the area is rich in selenium, and the sweet potatoes produced have high selenium content. Tested by the Hainan Academy of Agricultural Sciences, the selenium content of "Qiaosha Sweet Potato" reaches 70 micrograms/kg, making it a treasure of selenium-rich sweet potatoes. The "Qiaosha Sweet Potato" brand enjoys a high reputation in the industry and society, and has been awarded the title of "Hainan Province Famous Trademark".
2. Sweet potato, also known as sweet potato, sweet potato and white potato, is a tubular flower. An annual herbaceous plant of the Convolvulaceae family, it is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals. It is considered to be an excellent food for curing diseases, prolonging life, losing weight and maintaining health, and is known as the "longevity food".
3. In 2009, Wang Wenke, a young party member of Shatu Village, led several young people to introduce new varieties to plant sweet potatoes in Shatu Village, and established the Chengmai Qiaotou Shatu Sweet Potato Professional Cooperative, and officially announced "Qiaotou Sweet Potato". Registered as a trademark to provide high-quality seedlings to members and farmers
4. Most of the sweet potatoes grown by local sandy soil farmers are purchased by the cooperative and sold to large supermarkets inside and outside the province in different ways. In addition to marketing, a small number of them were purchased by other vendors and sold at different markets in our county. Therefore, "Qiaotou sweet potatoes are delicious" spread inside and outside the province. Later, Qiaotou sweet potatoes were detected. Containing trace amounts of selenium, eating it can prevent cancer, fight cancer, live longer, and beautify. Therefore, Qiaotou sweet potatoes are also called "selenium-rich sweet potatoes" and are increasingly popular among people to taste and buy.