Soybean is a taproot plant, and its taproot is obviously developed, which is easy to distinguish from its lateral roots. The root system of soybean is deeply buried, generally up to 40 cm, with bell-shaped root system distribution.

Characteristics of soybean root function

The root system of soybean has the functions of supporting and fixing plants and absorbing nutrients and water. Nodules have the function of nitrogen fixation, which can not only provide nitrogen for their own growth, but also help to enrich soil fertility after harvest.

Root structure characteristics

The root system of soybean is composed of taproot, lateral root and root hair. Its root system is characterized by rhizobia, so it can form nodules. In the process of root growth and development, epidermal cells of young roots and root tips are elongated to form root hairs.

Appearance and image of soybean root system

1, taproot: the taproot of soybean is developed from the seed radicle, and its lateral root is the branch root produced on the taproot, also called the branch root. The depth of taproot can reach 180 cm, and it can be extended laterally by 30-50 cm, but it is still distributed in 0-20 cm soil layer.

2. Lateral roots: lateral roots begin to appear 3-7 days after soybean seeds germinate. With the extension of plant growth days, the main roots and lateral roots increased, elongated and thickened.