What are the main food crops in the Loess Plateau?

Millet is the main food crop in the Loess Plateau.

Millet, also known as millet, millet and dog-tailed millet, was called Liang in ancient times, and glutinous millet was called Xiao. China is the origin center of millet and has a long history of planting millet. There is a cloud in the agricultural proverb, "Only the green hills will not die, and the millet will not die in the ground", which shows its superior drought resistance. It is drought-tolerant, barren and not afraid of acid and alkali, so it is planted in arid areas and barren mountainous areas in China, especially.