Fruit trees winter management catch six

Foliar fertilization fruit trees after fruit picking to the deciduous, once every half months foliar application of 0.5-0.6 urea, can also be sprayed 0.2-0.4% of potassium dihydrogen phosphate or 0.3-0.5% ammonium phosphate, in order to improve the leaf photosynthetic capacity. Autumn basal fertilization is generally performed in early November. The method is to dig an annular ditch around the root of the tree and apply the fertilizer to the ditch. Generally, 100-250 kg of fertilizer is applied to each fruit tree, and 1.5-2 kg of superphosphate and 0.5-0.79 kg of available nitrogen fertilizer are mixed. Pruning fruit trees after fruit picking to winter pruning before cutting topping. Properly cut off some of the later leggy branches or carry out topping to control the growth of branches and promote lignification. The autumn orchards in the ploughing gardens are overgrown with weeds, and the soil has poor air permeability. Therefore, when the fruit is harvested, the cultivator timely weeds and weeds and deep plowing is performed. Within the canopy, it should be turned slightly to prevent the roots from being wounded. The crown should be deepened and deepened with a depth of 40-50 cm. In this way, it is conducive to enhancing the permeability of the soil, maintaining water and fertilizer, and absorbing water and fertilizer in the roots. After pruning the fallen fruit trees in the autumn, the insect branches, dead branches, dense branches and unusable leggy branches are cut off in time to reduce the amount of winter shear and lay the foundation for the growth of fruit trees in the following year. After clearing the diseased fruit trees, the deciduous, residual fruits, weeds, and diseased branches are brought out of the orchard to burn or bury them in order to eliminate overwintering bacteria and insect sources. The fruit trees with insect pathways were found, and 50% of the dichlorvos emulsifiable concentrate was sucked with cotton balls and filled into the tunnel. Then they were killed by soil plugs.

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