Growth characteristics of root system of jujube

The root system of jujube is well developed, and the horizontal extension is larger than the vertical growth. Roots can be divided into shaft root, lateral root and fibrous root. The backbone root can be divided into horizontal root and vertical root, the horizontal root is well developed, the extensibility is strong, and the distribution range can be more than 3 times of the crown width. It is mainly to expand the root system and produce root tillers. The vertical root extends downward, and its growth potential is weaker than that of the production root, and its main function is to fix the tree to absorb nutrients and water. ⑵ lateral root: the extension ability of lateral root is weak, but the branching ability is strong. Its main energy is to absorb nutrients and water, and can produce roots and tillers. ⑶ fibrous root: for suction as the root.