Spring is the best time to sow soybeans.

The best time to sow soybeans in spring is from late April to early May.

Soybean is commonly known as soybean, and the planting time of soybean varies according to different weather, and its planting time is generally divided into spring sowing and summer sowing. Spring sowing is carried out before and after Tomb-Sweeping Day, and September is the harvest period. The best time to sow soybeans in spring should be after Tomb-Sweeping Day, that is, between the end of March and the beginning of April in the lunar calendar. Summer will be postponed, and spring sowing will generally be chosen.

China has been cultivated since ancient times, with a history of 5,000 years. Widely planted in China, it is produced in Northeast China, North China, Shaanxi, Sichuan and the lower reaches of the Yangtze River. It is cultivated in the Yangtze River Basin and Southwest China, and the quality of soybeans in Northeast China is the best. Soybean cultivated all over the world is directly or indirectly spread from China. Because of its high nutritional value, it is called "king of beans", "meat in the field" and "green milk", and it is the most respected food among hundreds of natural foods.

Introduction of soybean

Soybean likes temperature. Seed germination temperature 10- 12℃, optimum temperature 15-20℃, growth 20-25℃, flowering and pod-setting period 20-28℃, delayed pod-setting at low temperature, unable to bloom below 14℃, and too high temperature. Seed germination needs more water, and the soil water content is required to be 70%-80% at flowering stage, otherwise it will increase the bud drop rate. The amount of fertilizer absorbed by soybean before flowering is less than 15% of the total absorption, while the flowering and pod-setting period accounts for more than 80% of the total absorption.

Soybean generally refers to its seeds. According to the color and grain shape of seed coat, soybeans can be divided into five categories: yellow soybeans, green soybeans, black soybeans, other soybeans and feed beans. Soybean is the most widely planted variety in soybean. Soybean is most commonly used to make various bean products, brew soy sauce and extract protein. Bean dregs or ground into coarse powder are also commonly used in livestock feed.

Refer to Baidu Encyclopedia-Soybean (Leguminosae)