After Shi Jifei Pear picks, it is necessary to apply basic fertilizer before falling leaves, and the amount of fertilizer should account for more than 30% of the total amount of fertilizer for the whole year. Basal fertilizer is mainly farmyard manure, in which chicken manure has high phosphorus content and can be used more. Before freezing, the pear tree should be sealed with frozen water, which can eliminate overwintering pests in the soil. After winter freezing and thawing, it can loosen the soil and promote the growth of fruit trees. Scrape the skin and paint it white. "To eat pears and scrape the bark." Before going to the winter, you must scrape the rough old skin, cracks, cracks, etc. on the dried pears. This removes the overwintering pests in the old skin. After scraping the skin, it is necessary to whiten the trunks and branching branches to effectively prevent freezing and prevent diseases and insect pests. Trimming pears that are too prosperous for branches should be properly pruned by fruit growers. Due to the widespread use of fruit bagging technology, small insects such as Tenebrio are difficult to remove inside the bag. Clearing wintering pests and eggs in winter is an important method to solve this problem.
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