Irrigation methods for soybean cultivation

Soybeans have different water requirements at different growth stages. During the seedling stage, they require less water and should be appropriately dried, without or with less watering. During this period, excessive moisture may cause the root system to not root properly, resulting in slender stem nodes and a tendency to lodging in the middle and later stages. During the flowering, pod picking, and grain filling stages, more water is needed, and drought has a significant impact on yield. In case of drought, watering should be done promptly. During the flowering and grain filling stages, soybeans require the most water, accounting for about 45% of the total water consumption, which is a critical period for soybean water demand. The intensity of transpiration reaches its peak during this period, and the dry matter also increases linearly. Therefore, it is necessary to timely and fully supply water during this period.