Food Crops on the Loess Plateau

Does the questioner want to ask "what are the grain crops on the Loess Plateau"? Wheat, corn, grain, sorghum, potatoes, sweet potatoes and so on. The Loess Plateau is located in the north-central region of China, spanning the seven provinces of Qinghai, Gansu, Ningxia, Inner Mongolia, Shaanxi, Jin, and Henan. There are various types of food crops, and wheat is one of the most important food crops on the Loess Plateau, distributed in the Weihe Plain and Fenhe Valley. Corn is also one of the major grain crops on the Loess Plateau, distributed in Shanxi, Shaanxi and Gansu. Grain, sorghum, potatoes and sweet potatoes are traditional food crops on the Loess Plateau, distributed in mountainous and hilly areas.