The dormant period of pear trees is from after leaf fall to before germination in the following year. After leaf fall, a small amount of nutrients still flow back in the direction of "twigs-big branches-main stem-root system" and accumulate and store in the root system. Before sprouting in spring, nutrients begin to flow from underground to above ground with the flow of sap, and the sequence is exactly the opposite of the return flow. Compared with the growth period, the tree body activity in the dormant period is relatively weak, and the above-ground branches and trunks store relatively little nutrients, which is suitable for winter shearing. The following management measures should be taken during this period: 1. Pay attention to timely scraping off the thick and old bark of the main trunk and main branches, and burn them together to eliminate the pests that overwinter in the cracks of the bark; thoroughly scrape the rot disease and the rot disease spots, and immediately burn the diseased bark . 2. Combine winter shears, thin out diseased branches, remove diseased fruits, clean fallen leaves and fruits, and spray the whole tree with eradicating agent once. 3. When the fruit orchard is lacking in day and night, the whole orchard can be irrigated once, which can eliminate a large number of overwintering pests, which is very beneficial to the safe overwintering of fruit trees. 4. In winter, pear trees have no leaves and are in a dormant state. Most of the stored nutrients have been transported to the roots and branches. At this time, cutting useless branches can save a lot of nutrients, which is beneficial to the growth of the tree next year and enhances the tree vigor. The main tasks of winter shears are crown shaping, branch bud adjustment, branch group update, straighten out various branch-stem relationships, fix the main branch growth angle and posture, adjust the resulting branch group size, density and structure, deal with irregular branches, and control the tree The amount of total branches and flower buds. 5. The flower buds of pear trees are easy to identify. When cutting in winter, the annual trees will be thinned in advance. For too many flower branches, the flower buds of the branches and fruits will be slightly retracted than the broken flower buds to reduce the number of flower buds. For young trees, the flowers should be kept in full, and the flowers should be blocked and pruned to reduce the consumption of stored nutrients in the tree. The vegetative branches are short and replaced with branches to reduce the formation of flower buds in the coming year. Weak trees with no flowers or few flowers should choose to retain high-quality leaf buds and cut off too many low-quality leaf buds, which are good for improving the quality of new shoots, enhancing photosynthetic efficiency and restoring tree vigor. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Blood Pressure Transducer,blood pressure monitor,blood pressure machine,blood pressure monitor price,blood pressure Anesthesia Medical Co., Ltd. , https://www.trustfulmedical.com