Pomegranate saplings are "swirling", meaning that after the wintering of the tree, some branches shrink and die. The winter in northern China is cold and dry. In early spring, there is little wind and wind, and the amount of evaporation is large. The annual growth of pomegranate saplings is large, the water retention of branches is poor, and the branches are easy to evaporate and lose water. In case of severe winter, it easily leads to “drawing†to the pomegranate. Building a garden creates difficulties. Based on his many years of production experience, the author has worked out a set of techniques to prevent pomegranate young trees from severing winter and is now described as follows: 1. Variety selection should be based on varieties with strong cold resistance, such as Red-sweet sweet 1 and Black-sweet-sweet, Qingpi Tian No.1, Giant Seed Honey and so on. Some varieties with poor cold resistance cannot be safely overwintered when planted in the area north of Dezhou, Shandong. Second, to strengthen fertilizer management For 1-2 years after planting saplings, in July-September growth period should be increased by phosphorus and potassium fertilizers, nitrogen fertilizer control, reduce the number of watering, so that the new shoots stop growing in time, so that the plant is fully lignified. Third, timely picking up the heart in mid-August, timely removal of new shoot growth points, control the growth of shoots to promote the accumulation of nutrition; at the same time to timely eradicate bud shoots at the sprouting buds to ensure that the shoots are fully mature, and enhance winter cold resistance. Fourth, chemical cold (1) in early August sprayed on the leaves of paclobutrazol 300 times, control the growth of new shoots, and promote shoots enrichment. (2) After defoliating the plants in November, applying Vaseline on shoot shoots can significantly enhance the cold resistance of the plants. (3) Spray the canopy with 5% lime milk from late February to early March to delay the active period of shoot formation and reduce transpiration and shoot loss. 5. Buried in the cold in the north of Dezhou, Shandong, the seedlings planted in the same year were used to bend the young branches in the first half of November to prevent the shoots from losing water and freezing. The buried depth is generally about 30 centimeters, and the branches are liberated from the buried soil in early March of the following year. China Agricultural Network Editor
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