Pear tastes more juice, sweet with acid, weak nutrients, rich in vitamins and cellulose, both fresh and medicinal, laxative, digestion, the official use of it to make rock sugar Sydney has cough effect. China is also a big country in the pear tree. When many people plant it, they will find the early deciduous phenomenon of the pear tree. As a result, a little nutrient is lost, so that the quality and yield of the fruit are slightly worse. Then what about the early leaves of the pear tree? The net brings you the notice and prevention method of the early leaves of pear trees. 1, water balance Many people in order to slow down the growth rate of pear trees, often apply fertilizer more fertilizer, and ignore the application of inorganic fertilizer, so that the soil inorganic content is more and more, and finally the soil is agglomerated, the soil water storage And the drainage capacity is worse. As a result, the plants do not absorb water, especially in the case of drought, even if watering is not effective, it is easy to accumulate water, due to soil compaction, soil permeability is extremely poor, root growth is hindered, and finally the leaves constitute a wilting and degenerate. Control method: Fertilize should be properly applied with inorganic fertilizer. Every year, the soil should be turned over once to prevent soil compaction. Other fertilization can be cultivated and weeded repeatedly, which can increase soil permeability. Watering in other droughts and draining in time during the rainy season. 2. Close planting and improper pruning In order to complete the yield of mu, the planting density of the plant is too large, so that with the growth of the pear tree, the crown is formed, so that the plant and the plant are closed, the ventilation and light transmittance are poor, and many leaves are made. Can not contact the sun to stop the photosynthesis, so that the early leaves, the other connotation pruning should be improperly trimmed, it will also constitute such a phenomenon. Control method: According to the characteristics of pear trees and the method of planting, the plants are reasonably densely planted, so that each tree is connected with a certain distance. After the crown is formed, it is found that the plants are too concentrated, and they must be moved or thinned at the same time. For the pear tree that grows prosperously, it is necessary to pruning it, grasping the number of branches and the height of the crown, making it more flowering and increasing yield. 3, pests and diseases There are many pests and diseases on the pear trees. These pests and diseases are dangerous. The leaves of the pear trees cause the leaves to fall. The diseases include black star disease and black spot disease. The insect pests include pear hibiscus, two-spotted spider mites, pear bifurcation, etc. Control methods: There are many methods for the control of pests and diseases, such as starting from the source of pests and diseases, burning the weeds falling around the network and disinfecting the plants and soil. Other pests can be controlled by its natural enemies, and the disease is controlled by chemical agents. 4, improper application of pesticides We are disinfecting or controlling pests and diseases, will use some chemical agents, these agents themselves have certain risks to the plant, if mixed, perhaps the concentration of the drug is too high, the number of times, will cause the leaves to fall early. Control method: The medicine should be applied according to the problems encountered by the plant and the nature of the medicine. It is necessary to master the concentration and method of the medicine. It is necessary to be scientific, pay attention to the limitation of the medicine, and should not be used frequently. Steel Door Skin,Stainless Steel Door Skins,Aluminum Door Skin,Modern Door Skin Xiamen XMillion Co.,Ltd. , https://www.xmilliondoor.com