Extended data:
Sowing soybean in summer is very important because its growing season is short. Sowing in time, high seedling rate, neat and robust seedlings, good growth and development, and thick stems. You can sow on the ridge in summer, which can increase the sowing area and make the soybean taste better. If sowing is in autumn, in case of high temperature, the carriage should be irrigated first. If the water is insufficient after sowing, you can irrigate the horse at night.
References:
Baidu encyclopedia-soybean