The scientific fertilization of pear tree is an important measure to improve the quality of pear fruit. Pear tree top dressing is not timely, unbalanced will affect the normal fruiting and growth of pear, and the amount of fruit set by scientific fertilization can only achieve high quality, high yield and high efficiency. Four key periods of pear tree fertilization: First, the application of boron fertilizer during flowering Boron is a pear flower that requires more trace elements. It is generally advisable to spray 0.2-0.3% boric acid solution or 0.3-0.5% borax solution at the initial flowering stage and post-flowering stage to promote pollen absorption and activation. Metabolic processes can stimulate pollen germination, fertilize embryo development, and increase fruit vitamin C content. When heavy boron is deficient, borax or boric acid 200-300 grams per mu is mixed with farmyard fertilizer to mix and open the ditch, which can prevent fruit from wood plugging and improve fruit quality. Second, topdressing nitrogen, phosphorus and potassium fertilizer Generally, after the pears have grown, the young fruit should be combined with the yarrow, and each tree is ditched with 0.3-0.5 kg of nitrogen fertilizer, 0.2-0.3 kg of potassium fertilizer, and 0.3-0.5 kg of phosphate fertilizer. This fertilization mainly promotes the growth of roots and shoots, enlarges the leaf area, and rapidly increases the volume of young fruit. Third, long-term recovery of long-lasting fertilizer From late June to mid-July, fertilizer must be added. Each application of human excrement 3050 kilograms, urea 0.2-0.3 kilograms mix and ditch pouring, and then cover the soil. At the same time, spraying 0.2-0.3% potassium dihydrogen phosphate once every 15-20 days for 3 consecutive times will not only reduce the occurrence of diseases and insect pests, but also promote fruit growth and good growth. Fourth, during the period of strong fruit From August to September, it is the time for fruit to accumulate nutrients. At this time, the main application of fertilizer is N, P and K fertilizers to promote fruit growth and increase yield and quality. Generally, 0.3-0.5 kg of nitrogen fertilizer, 0.2-0.3 kg of phosphate fertilizer and 0.3-0.4 kg of potassium fertilizer should be buried in each tree, which can promote the metabolism of carbohydrates and increase the sugar and sweetness of fruits. AI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network CameraAI Tracking PTZ Detection 2MP WiFi Surveillance Wireless Security CCTV POE Battery Network Camera Indoor PTZ Camera,Indoor PTZ Camera,Surveillance Wireless Security Camera,Wireless Security CCTV Shenzhen Fuvision Electronics Co., Ltd. , https://www.szsolarcamera.com