Persimmon trees management in autumn and winter should grasp the following points:
First, pull branches pruning 1, the autumn pull branches of the best is in September, pull the main target is the main branches and auxiliary branches. The opening angle of the main branch of the base should be at the left of 90 degrees - less than 70 degrees downwards, greater than 70 upwards, and the orientation should be pulled to the left or right. 2. The winter persimmon tree shear is beneficial to the early results of the young trees. The adult trees have high and stable yields, and the aging trees are rejuvenated. The winter shearing time is usually carried out after the deciduous period and before the budding of the spring and spring. According to the difference in land, tree vigor, and pests and diseases, pruning can be performed as appropriate. If it is found that persimmon keratoses and tsutsugamushi occur severely, they must be trimmed; otherwise, they should be lightly trimmed.
Second, fertilizer and water management The appropriate time for autumn basal fertilization is from mid-late September to early October. At this time, the microorganisms are prosperous, organic matter decomposes quickly, which is conducive to root absorption. Fertilizers are mainly organic fertilizers and are supplemented with available fertilizers such as nitrogen, phosphorus and potassium. Water immediately after application. In water-free areas, snow can be deposited in the tree's nest to increase soil moisture.
3. Pest Control The variety of pests and diseases in persimmon trees is high. It is an effective period for the prevention and treatment of persimmon trees in autumn and winter. 1, autumn and winter to completely remove the disease, Shizitan, dead branches and leaves, can be rot, spot disease, anthrax and other pests overwintering to eliminate the damage in the following year. 2. Prevent and treat pests such as peduncles and grass filths, scrape rough and rough skins on the trunks and branches in winter, remove the insects hanging on the persimmon trees, destroy them in a concentrated manner, and eliminate the overwintering eggs in combination with the larvae to reduce the number of insects. Base number. After shaving, the trunk must be painted white.
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