I. What are the fertilization characteristics of Wangshu and Weak Trees? 1. The fertility characteristics of Wangshu are: (1) Use early fertilization to promote spring shoots and control autumn shoots. Or after the shoots are stopped for a long period of time, fertilize, or apply early basal fertilizer, combined with deep-rooted roots. (2) The amount of fertilizer should be applied sparingly or temporarily. (3) Fertilizer varieties mainly use phosphorus and potash fertilizers to control nitrogen fertilizers. (4) On the fertilization method, the basal fertilizer was deeply applied to strengthen the top dressing. 2. The characteristics of weak tree fertilization are: Contrary to Wang Tree, organic fertilizer should be applied more, nitrogen fertilizer should be used more, and top dressing and top dressing should be applied to strengthen vegetative growth and restore tree vigor. Second, what is the difference between tree fertilization at different ages? 1. Young Wang tree grows less and needs to control nitrogenous fertilizer. Apply more phosphorus and potassium fertilizer. The location and depth of fertilization should be expanded and deepened year by year. 2. The growth from the early fruit stage to the full fruit stage gradually increases, and the fruit volume gradually increases. Based on the application of phosphorus and potash fertilizers, the nitrogen fertilizer is appropriately increased, deep plowing is strengthened, and the tree nests are placed. 3. Results from fruit to senescence and growth balance or too many results. To focus on promoting early growth, base fertilizer should be applied early, multiple, and deep; soil fertilizer should be applied in multiple times and in sufficient quantities, and the frequency of fertilizer application should be increased; the proportion of nitrogen fertilizer should be gradually increased, combined with irrigation to promote strong trees and high yield. With low-power, miniature size, the serial communication department range sensor with mm accuracy can measure up to 20m, 40m, 60m, 100m, 150m, 200m. Serial Laser Distance Sensor,Serial Communication Laser Distance Sensor,Laser Range Sensor Boards,Distance Sensor Panel Chengdu JRT Meter Technology Co., Ltd , https://www.rangesensors.com
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