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Orchard Winter Management
Most fruit trees enter dormancy during the winter. At this time, the deciduous fruit trees are basically defoliated and shoots stop growing. However, a series of activities such as respiration, transpiration, differentiation and development of roots, and root absorption are still performed inside the tree body. Evergreen fruit trees slow down as the temperature decreases. According to the growth characteristics of the fruit trees, the orchards should be managed in the winter—pruning. Reasonable winter pruning of deciduous fruit trees can enable fruit trees individuals to make full use of space, improve light energy utilization, improve ventilation and light transmission conditions, reduce pests and diseases, improve fruit quality, and can reasonably distribute nutrients to maintain the coordination of growth and results. The role of balancing and extending economic life is one of the important measures in the production of fruit trees. Therefore, peaches, pears, grapes and other deciduous fruit trees should be trimmed in time, generally before the Spring Festival. The pruning method should be treated separately according to the growth characteristics of different tree species, and measures such as short cutting, thinning, and sparsing are mainly adopted. Young trees should also be used for branching operations. In short, they should be cultivated in the winter to produce trees with reasonable yields. Park. Reasonable garden closure can effectively reduce the orchard's overwintering base in the orchard. Deciduous fruit trees can be removed after pruning in winter orchard with dead branches, diseased leaves, stamens, leaves, etc.; scrape off branches and spots, protect wounds with 402 antibacterial agent 50 times; crown spray 95% oil emulsion 50 times or 45% crystal lime sulfur 30-50 times liquid closure garden. Evergreen fruit trees (citrus, etc.) can be sprayed with 95% oil emulsion 100-150 times liquid or 45% crystal lime sulfur 200-300 times. However, it should be noted that lime sulfur and oil emulsion cannot be applied at the same time, and the two should be separated by 20 days, otherwise it is easy to produce phytotoxicity. Reasonable filling. An orchard that lacks plants should make up for shortages in time. The deciduous fruit trees should be replanted before the Spring Festival and the evergreen trees should be replanted in the middle of February and the middle of February.