In winter, the temperature is low and the vines suffer freezing injury. If the root rots, the xylem becomes dark brown, indicating that the roots have been frozen to death; the root bark is yellowish-yellow, the xylem is brown-yellow and half dead roots; the cortex is yellowish, and the xylem is milky white. It is living roots. If the amount of frozen roots reaches more than 50%, the buds of buds will not germinate, or only a few buds at the base will germinate. To shoot at the base of the main vine, cut off the upper part to make it sprout again. Roots that have been frozen to below 40% can be remedied. Pressure vine cover. In the direction of the main vine, crawling, dig a 30 cm deep ditch, put the vine into the ditch, cultivate the semi-trenchy soil, and then water the ditch. After the water infiltrates, fill the ditch and cover it with straw bags or mats. The vines reappear in the soil. After 15 days of dead roots, new roots can be grown and the resurrected shoots can be gently raised and placed on shelves. Buried mulch. According to the above method and requirements, the main vine is buried in the ditch, and the soil around the root neck of the frozen plant (2 m before the frame and 1.5 m after the frame) is dug deep 40-50 cm, the dead root is cut off, and the half dead root is retained. , and then spread 10 cm thick humus soil, irrigated with water, and then cover the soil, let it resume growth. Shrink cut vines. For the lightly-frozen plants, when the buds are to be budded, the long vines are cut again to facilitate the growth of nutrients. The shrunk-scissor bit applies the appropriate amount of quick-acting fertilizer in time and combines with loose soil to increase soil temperature and air permeability and promote new root growth. From the top to the bottom, the dendrite gradually shrinks and shrinks. To cut off the cold-damaged shoots, loosen the tree disk, increase the decomposed organic fertilizer, and water it in proper amount. As the temperature rises, it can gradually resurrect. Vault Secures,Vault Door,Movable Vault Room,Vault For Bank Hebei Yingbo Safe Boxes Co.,Ltd , https://www.ybsafebox.com