Cabbage head, purple radish, water shield and laver head are biennial herbs of the genus Betula in Chenopodiaceae, and are also sugar crops. Sugar beet cultivation in the world is mainly distributed in North America and European countries in the northern hemisphere, with a small amount in Asia and other places. Sugar beet cultivation in China is mainly concentrated in North China, Northeast China and Northwest China, which are north of 40 degrees north latitude. They are not demanding on water and soil conditions, ranging from coastal areas with an altitude of several meters to mountains with an altitude of 2500 meters, and from areas with annual rainfall of 170 to 1000 mm. Beet originated from wild species, its roots are nearly spherical and thick, and it appears purple with veins, and its stems are erect and somewhat branched. The roots and leaves of beet can be used to feed livestock, make sugar and provide vegetables. Beets are widely cultivated and vary greatly, and are divided into several subspecies, varieties and variants, mainly including thick-skinned vegetables, sugar radishes (beets), red cabbage heads and feed beets.