Pay attention to top watering. After the soil is thawed, quick-acting nitrogen, phosphorus and potassium fertilizers should be applied, and watering of the whole point and soil conservation should be carried out. Topdressing watering needs to meet the physiological activities such as fruit tree branching, leaf development, and flowering.
Pay attention to scrape the old rough skin. The old rough skin of the tree is a parasitic wintering ground for many germs and eggs. The old rough skin is scraped off before germination, and burned in a concentrated manner. This can eliminate a large number of overwintering pests and reduce the number of pests and diseases. This can result in more effective pest control. More attention should be paid to the curettage of the rot disease. After the scraping, the smears of thiazolyl, octomycin, thiophanate-methyl, and other agents should be applied in time. After 1 week, the drugs should be applied once again to prevent recurrence. The main lesion or main branch exceeds 1/4 of the body's large lesions in time to rejuvenate.
Pay attention to using the agent clear garden. The Pharmacy Clearance Park must seize two points. 1. Grasp the appropriate application period. 2. Choose a suitable high-efficiency, low-toxicity variety. The whole park sprayed 3-5 Baume degree lime sulfur, or use insecticide, fungicide mixed spray, insecticide optional chlorpyrifos or acetamiprid, fungicide optional thimethanone or carbendazim, etc.; orchard winter When there is a large number of leafhoppers, they should also be added with acaricides such as peony, and spray the whole tree carefully after mixing according to their respective recommended amounts to kill germs and overwintering pests on the surface of stems and in the shallow layer of bark. When applying pesticides, it should be comprehensive, meticulous, and considerate to ensure the application amount.
Pay attention to doing a reasonable trim. Uncultivated orchards in winter can be pre-flowered in the spring to adjust the tree structure. Excluding some overly dense and influential main branches, competing branches, and absurd branches on the back, opening the light path will help to improve the quality of the internal litchi; more attention should be paid to the dense branches, leggy branches, and excessive peripheral branches. Shearing is conducive to moderate tree vigor and ventilation. After the apple orchard is cut in the spring, the amount of mu sticks generally remains 7 to 80,000 pieces.
Pay attention to thinning and fruit thinning. After the fruit is set, the fruit can be separated according to the spacing method. Usually, one fruit is left every 20-30 cm. Thinning and fruit thinning are one of the main measures for producing high quality and high grade fruit.
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