Everything recovers in spring. Apple trees are in the bud budding period in March, and the management before budding is the most important thing. Therefore, it is necessary to adopt certain technical methods to manage apple trees during the budding period. High connection change In combination with reshaping, methods such as split splicing, subcutaneous splicing (butting), tongue splicing, and woody bud splicing are adopted for high grafting or grafting pollinated varieties to optimize the variety structure. Double cut before flower For fruit trees with too large flowers, weak tree vigor, and new year, not only fine pruning in winter, but also repeated cutting before flowering. When flower buds and leaf buds can be distinguished, shrink the bunch of flowers and too long and too weak fruiting branches (groups), thin out the weak fruiting branches, and appropriately shorten part of the top flower buds to keep the flower branch rate at 30%. Remove part of the flower buds in advance to save nutrients, not only can produce large fruits, but also exchange flowers for flowers to overcome the size of the year. Cut buds In the cold winter, the cut wound will lose water in the tree, and the buds will lose water and be frozen. In severe cases, the buds will dry and die. The ideal time should be 7-10 days before germination. The method of carving buds is determined according to the degree of strong branches. Reasonable tree shape and reasonable spatial distribution of branches are the prerequisites for ensuring good lighting, but it is not enough to just do these well. It is also necessary to adjust the tree potential, branch potential and fruit tree load. And before germination is a critical period to adjust the branch power and load. Pest control 1. Clean the orchard, clean the dead branches, fallen leaves, weeds, pests, etc., and take them away from the orchard or burn them. 2. Scrape the rot disease and the diseased spots (coarse bark) of the branch and stem ring streak disease, finely scrape the old alice bark, bury it in a concentrated way or burn it. 3. Apply biological or mineral medicament after scraping and curing rot disease and branch and stem ring disease. The medicament is 5-10 times 9281, Nail Oil, Junduqing, Fubiqing, Lime Sulfur Mixture, etc., and the cut is closed. . For orchards with severe rough skin disease, control by stages, scraping 1/3 each time. 4. Spray 5 Baumeli Lithium Sulfur Mixture or 50% Sulfur Suspension 30-50 times liquid before buds sprout, which can prevent diseases and insects. The double effect. 5. For orchards with severe lobular disease, spray 3%~5% zinc sulfate solution or zinc ash solution once before germination. The zinc ash solution is prepared at a ratio of 1:2:100. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone
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