Soybean is a leguminous soybean belonging to panicum miliaceum, which originated in China. It is cultivated all over China and widely around the world. It is one of the important food crops in China with a history of 5, years. It is most commonly used to make various bean products, extract soybean oil, brew soy sauce and extract protein.

Soybean is warm, seeds start to germinate at 1 ~ 12℃, and the optimum temperature is 15 ~ 2℃, the optimum temperature for growth is 2 ~ 25℃, the optimum temperature for flowering and pod-setting is 2 ~ 28℃, pod-setting is delayed at low temperature, and the plants can't bloom below 14℃, and the growth will end early if the temperature is too high. Seed germination requires more water, and the soil water content is required to be 7 ~ 8% at flowering stage, otherwise the bud shedding rate will increase. The amount of fertilizer absorbed by soybean before flowering is less than 15% of the total, while the period of flowering and pod setting accounts for more than 8% of the total fertilizer absorbed.

When planting soybeans, the seedbed should be arranged first to ensure looseness, fertility and good air permeability, and an appropriate amount of base fertilizer should be applied. After the treatment, sprinkle the seeds on it, and pay attention to controlling the spacing between plants, with the spacing between each plant being 3-5 cm. After planting, cover the soil and wait for germination. When the seedlings grow to 4-5 cm high, they can be planted. During the later management period, we should pay attention to the environment provided at ordinary times, which is suitable and full of fertilizer and water, so that the output will be higher.

In soybean planting, the fertilizer and seeds are separated in general, and it is applied 4 ~ 5cm below the seed side, and the amount of chemical fertilizer can be adjusted. When more than 2kg of diammonium phosphate is applied per mu, it can be applied in layers. The upper layer has a seed fertilizer depth of 5-7cm, the fertilization amount accounts for 1/3, the bottom fertilizer depth is 1-16cm, and the fertilization amount accounts for 2/3. Or after the previous crop is harvested, the fermented organic fertilizer is evenly spread on the ground, and then the fertilizer is raked into the soil with a rake, and the manure and the soil are thoroughly mixed, and then deeply turned, and the raked bottle is finely ridged, or soybeans can be planted flat.