Pear varieties, such as Long Pear, Ya Pear, Changba Pear, Perfume Pear, etc., are mostly harvested from mid-September to early October. From late September to October after harvest, the temperature is suitable, the temperature difference between day and night is large, and the sunlight is sufficient, which is very beneficial to the growth of pear roots and photosynthesis. Pear orchard management can carry out irrigation, fertilization, and cultivating at the same time as pears are harvested in the middle and late September to promote soil microbial activities, root growth, and photosynthesis. Then, thinning and thinning of individual plants in densely planted gardens and closed crowns can improve the illumination of pear gardens and crowns, and improve the quality of flower buds. Strengthen fertilizer and water management Intertillage can make the soil in the whole garden loose and breathable. Generally, shallow intertillage should be carried out on the soil in the extended range of the root system to avoid damage to the root system; deep plowing is more suitable for those farther from the canopy. The fertilization standard is 20-30 kilograms of high-quality farmyard manure, 0.25-0.5 kilograms of phosphorus pentoxide, and 0.5 kilograms of potassium oxide per plant. Open a ditch on the perimeter of the root system extension in antegrade, with a depth of 40 cm and a width of 40 cm. Mix the fertilizer with soil and apply it, and cover with soil. The focus of water management is drought resistance and flood drainage. It is recommended to cover the tree trays with weeds to a thickness of 10 cm, and then compact with fine soil. In addition, green manure can be applied in the pear orchard after the soil has been deep-turned. Green manure contains a large number of elements such as nitrogen, phosphorus, potassium and a variety of trace elements such as calcium, magnesium, copper, zinc, boron, etc. The application of green manure is not prone to lack of nutrients, and can reduce the poor resistance caused by malnutrition and lack of trace elements. Abnormal physiological phenomena such as poor growth and development. Take leaf preservation measures After the fruit is harvested, spray the nutrient solution on the leaf surface in time, spray each area with 0.3% urea and 0.3% potassium dihydrogen phosphate, once every 10 to 15 days, for 2 to 3 times in a row. Prevent pests and diseases The main pests and diseases that harm pear trees after the pear is harvested are pear scab, pear black spot, rust and pear borer. It is necessary to adhere to the principle of "prevention first, comprehensive control" for pest control. The diseases of pear trees after fruit picking will generally cause pear trees to fall leaves. You can choose to spray 800-1000 times liquid of 70% thiophanate-methyl WP, once every 10-15 days, and use it for 2 to 3 times. The postharvest pests that harm pear trees mainly include Psylla sylvestris, Pear worm, etc. Physical control methods can be used, such as using physical factors such as temperature, spectrum, color, sound, odor, and electrical equipment to trap, drive or kill pests. , Can also be used for drug control. Pruning properly While fertilizing the pear trees, prune the branches of the pears appropriately, leaving more thick branches and less thin branches. Thinning out the main branches or other backbone branches that are excessively growing new shoots on the back, peripheral competition branches, elongated branches and other severely shading branches, improve the ventilation and light conditions of the tree, relax the tree vigor, and promote the differentiation of flower buds. Excessively dense branches, weak branches, diseased branches, dead branches, etc. should be cut off and taken out of the garden for disposal. At the same time, the late autumn shoots are topped to promote lignification to avoid freezing damage to the autumn shoots. 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 Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com