Soybean is another name of soybean, which was called glutinous rice in China in ancient times. It is a kind of crop whose seeds are rich in protein. Leguminosae soybeans are oval and spherical in color, such as yellow, light green and black. Soybean is most commonly used to make various bean products, extract soybean oil, brew soy sauce and extract protein.

Characteristics of soybean

Soybean likes warm, so it needs to be provided with a warm environment after planting, because soybean will delay pod setting at low temperature, and it can't blossom when the surrounding environment is lower than 14℃, but its growth environment can't be too high, which is unfavorable to its growth.

The seeds of soybean began to germinate at 10- 12℃. The optimum temperature for soybean germination was 15-20℃ and the growth temperature was 20-25℃. Soybean originated in China and was widely cultivated all over China, among which Heilongjiang soybean was the most famous.