Attachment: the method of planting persimmon trees in the yard
1. Persimmon is a deep-rooted fruit tree. It likes deep and loose soil, so it should choose soil with strong water and fertilizer retention and good drainage. So prepare some good soil and make drains around the yard.
2. The most suitable time for persimmon planting is after defoliation in autumn or before germination in spring. When planting, holes should be dug according to the size of the tree, and appropriate farmyard manure and calcium magnesium phosphate fertilizer should be put into each hole, and the soil should be cultivated in time after planting.
Girdling will be carried out in the middle and late May. The method is: according to the strength of the tree, cut the annual rings of the trunk 2~3mm wide with a sharp knife, cut them longitudinally with the tip of the knife, but the xylem must not be hurt, and then stir them up with the tip of the knife to peel off the narrow bark. Its purpose is to prevent the nutrients-carbohydrates produced by leaves in the process of photosynthesis from being transported to the roots, and all of them are used for fruit setting on trees.
4. Spraying 1 800 times of organic humic acid active foliar fertilizer, 1500 times of enhanced Dayun-120 mixed solution, or 500 times of plant vitality, 2500 times of beneficial micro-yield-increasing bacteria mixed solution, or% magnesium sulfate in the middle and late stage of persimmon fruit bearing.
5. Persimmon trees are prone to the phenomenon of big and small years, with small fruit, poor quality and low commodity value. It is necessary to timely sparse buds, flowers and fruits.
6. According to the biological characteristics of persimmon trees and the characteristics of yard planting, the sparse type should be selected. The method is: 1~m to fix the trunk, then grow 1 year, and choose the upright branches as the central drainage trunk in winter. In the lower part, three stout branches with evenly distributed angles are selected as the main branches of 1 layer, and a short cut bud growing outward is selected at 40~60cm. In order to make the second main branch grow vigorously, it is necessary to restrain the growth of the central main branch and carry out heavy and short cutting.
7. Pests and diseases that harm persimmon trees mainly include persimmon stem borer, persimmon scale insect, grasshopper scale, anthracnose, brown spot and so on. Persimmon fruit is vulnerable to anthracnose and brown spot in the middle and late stage of fruiting, resulting in a large number of fruit drops and black spots on the fruit surface. Therefore, when the transverse diameter of fruit is 3~4cm and the transverse diameter is 6~8cm, 800 times of persimmon yike aqueous solution or 50% instant wettable powder with 0/000 times of/kloc-were sprayed respectively. In the fruit maturity, if there is scale insect damage, it should be continuously sprayed with 800~ 1000 times of water-killing agent or 1000 times of water-killing agent for control. In the germination stage of autumn shoots, when the new shoots just germinate, spread leaves and turn green, the mixed solution of trichlorfon 800 times, dichlorvos 65438 times and dichlorvos 65438 times was sprayed respectively to prevent and control various diseases and insect pests that harm the new shoots.
8. The temperature is low in winter. Due to the poor cold resistance of persimmon trees, the following measures can be taken to protect trees from cold if conditions permit: First, water them with frozen water in time; Second, the trunk is bound with cold-proof objects (such as straw rope, straw, waste cotton, etc.). ); Third, it is forbidden to pile snow under the tree to prevent the accumulated water from freezing and causing the tree to die.