The root and leaves of turnip are edible. In modern times, small turnips are used for food, and large turnips are used to feed domestic animals. Turnip is rich in vitamin A, folic acid, vitamin C, vitamin K and calcium. The edible method can be salted to remove the mustard spicy taste, and then add raw sugar, or add meat or rice cakes for cooking. Because of the convenience of cultivation, the value of food is high. During the Three Kingdoms period in ancient China, Zhuge Liang, the Shu Kingdom, regarded it as a military ration, and then Germany during World War I also used turnip as the main emergency food to solve the military ration problem. The inside of the turnip is hollowed out, and a cotton roll is stuffed inside, which can also be used as a lamp.