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果树进入秋季后,逐渐停止生长,树叶脱落,进入休眠状态.如果不能及时停止生长进入休眠,当外界气温发生较大变化时,果树就适应不了外界条件,就会被冬天的严寒和春季的寒流侵袭而冻死.为此应采取下述防冻害措施.一是选抗寒砧木和接穗组合.要掌握果树品种特性,结合当地气候,选抗寒砧本和接穗,以提高果树防寒能力.二是适当加大果树栽植密度,改善越冬条件.如建园时选背风向阳,土壤中、上等肥沃的沙壤土,不选用砂石岗地、低洼易涝和漏风地等.但客土改良土壤后可以利用.
After the fruit trees enter the autumn, they gradually stop growing and the leaves fall off and enter the dormant state. If they can not stop growing and enter dormancy in time, when the outside temperature changes greatly, the fruit trees can not adapt to the external conditions and will be cold and cold in winter and spring Invasion and freeze to death.To this end, the following measures should be taken to prevent frost damage.One choice of cold rootstock and scion combination.To master the characteristics of fruit varieties, combined with the local climate, the election of cold anvil and scion, in order to improve fruit cold ability. Is appropriate to increase the planting density of fruit trees to improve the winter conditions such as the construction of the park when the leeward sunny, the soil, the finest sandy loam, not sandstone, low-lying waterlogging and air leakage, etc. However, use.