How to manage persimmon trees in summer?

How to manage persimmon trees in summer? Please give guidance to summer persimmon management methods can refer to the following points: first, sparse fruit astringent persimmon from mid-May to early June, sweet persimmon from early June to early July, after the end of physiological fruit drop, according to the proportion of 20-25 leaves to one fruit, choose healthy young fruits free of diseases and insect pests The fruits to be removed are deformed fruits, pests and diseases, as well as fruits on branches less than 15 cm long or less than 5 leaves, and fruits on the base and tips of fruiting branches. 2. Annular peeling for adult fruiting trees, an annular peeling was carried out in the middle and late May. The method is: use a sharp knife to cut a band 2-3 mm wide on the trunk ring, and gently cut it longitudinally with the knife tip, but do not hurt the xylem, and then gently pick up and peel off the narrow bark with the knife tip. The purpose of annular peeling is to prevent the transport of carbohydrates from persimmon leaves during photosynthesis to the roots, which is beneficial to strong fruit. 3. Weeding and irrigation according to the growth of weeds, there are 2-3 times of weeding in summer. And insist on 7-10 cm shallow hoe under the crown and 25-30 cm deep hoe outside the crown. When there is a drought from July to August, it is necessary to irrigate and fight drought in time. Where there is no intercropping persimmon orchard should be fully covered with grass, can preserve soil moisture and fertilizer, maintain water, soil, fertilizer, prevent weeds and cold, sunburn, improve soil, but dry weather should pay attention to fire prevention. Fourth, topdressing from May to June is the peak growth season, and the root and shoot have strong growth ability. The amount of fertilizer applied to a 1-2-year-old young tree is 20 grams of pure nitrogen, 10 grams of calcium superphosphate and 20 grams of potassium chloride. The amount of fertilizer applied per plant of 3-5 years old was twice as much as that of 1-2 years old. The amount of fertilizer applied per mu of adult fruit trees in summer is 4 kg of pure nitrogen (7.8 kg of urea), 4 kg of calcium superphosphate and 4 kg of potassium chloride. At the periphery of the vertical dripping line of the crown, 5-10 cm of the young tree and 15-20 cm of the adult fruit tree, dig a circular ditch 20 cm wide and 20 cm deep. The above three kinds of fertilizers were filled and covered immediately after applying the above three fertilizers before 9: 00 a.m. and 5: 00 p.m. In cloudy or sunny days. 5. the main diseases and insect pests are garden spot, corner spot, anthrax and powdery mildew. Baumei 0.3-0.5 stone sulfur mixture or 50% topazine powder 800-1500 times liquid spray can be used. It can also be sprayed with a liquid spray of 100 Bordeaux. The main pests are persimmon caterpillar, beetle, persimmon stem worm, blood spot leafhopper, persimmon shoot moth, diamondback moth, etc., which can be sprayed with 50% omethoate 500-1000 times or 50% potassium ammonium phosphorus 1000-1500 times. Diamondback moth uses crystal trichlorfon 600-800 times night spray. Click to get more persimmon planting techniques click to get more fruit planting techniques