Before the persimmons pass through the winter, they must deepen the soil in the garden, and the depth of excavation is 30 cm. During this period, the soil temperature and humidity are more suitable to heal the roots and restore the tree vigor. Through deep-turning and soil improvement, soil aggregate structure and soil physicochemical properties are improved, the relationship between soil water and fertilizer gas-heat is coordinated, and soil fertility and water conservation performance are improved, creating a favorable environment condition for root growth of fruit trees. Shijifei supplemented tree nutrient consumption. The amount of fertilizer is determined according to the size of the tree. Generally, 30-50 kilograms of farmyard manure is applied to each plant, and the base fertilizer must be applied to the soil layer 50-60 cm below the surface. The base fertilizer is applied too shallowly, and the root system will be run due to the fertility characteristics of the root system. The skin reduces the drought resistance and cold resistance of the plants, and the management of the cultivator tends to hurt the roots. The distance between the roots and necks of fertilized gap trees is related to the size of the trees. Excavation from the canopy drips is the concentrated distribution area of ​​the sweet persimmon roots. The applied fertilizer should be mixed with the soil and the fertilization ditch should be covered with fine soil.
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