After the fruit trees are harvested and before the winter, it is necessary to strengthen management. According to years of production practice, it is crucial to do a good job in six managements before winter.
First, foliar spray fertilizer. After the fruit trees are harvested, the leaves are sprayed with 0.5% urea once every half month, and 0.2%-0.4% potassium dihydrogen phosphate or 0.3%-0.5% ammonium phosphate can be sprayed to improve the photosynthetic efficiency of the leaves. To enhance the nutrient storage of the tree.
Second, the autumn Shi base fertilizer. Generally, after fruit picking, an annular groove or a radiation ditch is used for trenching, and then the fertilizer is applied into the ditch to cover the soil. Generally, each fruit tree is fertilized with 100-250 kg of fermented fertilizer, and mixed with 1.5-2 kg of superphosphate and 0.5-0.75 kg of quick-acting nitrogen fertilizer.
Third, the whole branch is topping. After picking the fruit, the fruit tree is properly pruned and topped before the leaves. The main content is to properly cut off or pick the heart of the late branches, to control the length of the branches, enhance the tree potential, improve the quality of winter buds, and prevent the pumping is of great significance.
Fourth, plowing the garden. Orchards generally have a lot of weeds, and the soil compaction is poor. Therefore, weeding and weeding in time after fruit picking, and deep turning. The crown should be shallowly turned to prevent root damage; the canopy is deepened outside and the soil permeability is enhanced, which is conducive to water retention and fertilizer retention and root water absorption.
Fifth, autumn trimming. After the fruit trees are deciduous, the diseased branches, dead branches, dense branches, and unusable long branches are cut off in time, which not only reduces the amount of winter shear but also lays a foundation for the growth of fruit trees next year.
6. Remove the source of the disease. After the fruit tree is cut in autumn, its branches, fallen leaves, weeds, etc. are taken out of the orchard and burned or buried deep to eliminate the wintering bacteria and insect sources. If a fruit tree with insects is found, use a cotton ball to absorb 50% of the dichlorvos emulsifiable concentrate 10 times, insert it into the insect tract, and then block the hole with mud.
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