果树防寒御冻,对恢复树体,开春早发旺长,减少落花落果,增产增收,具有重要作用。寒冬期间,对果树的防冻方法应做好以下四点。(一)冬灌。“果树不冬灌,十冻九遇旱”,“大冻之前灌果园,开春果树长得欢。”土干地易冻,地润土融融。水的热容量比土壤颗粒大得多,夏降温、冬保温。大冻之前,土壤日消液冻之时,给果园灌一次越冬水,使土壤保持湿润状态,能增大土壤热容量,稳定和增高地温,既达到增水增墒,又 Cold and frozen fruit trees on the restoration of trees, early spring prosperous bloom, reducing the fall and fall, increase yield, has an important role. During the winter, antifreeze methods should be made on the following four points. (A) winter irrigation. “Fruit trees are not winter irrigation, ten frozen nine drought”, “big fruit before pouring orchards, spring tree grows joyous.” Soil dry easily, to melt. Water heat capacity is much larger than soil particles, summer cooling, winter heat. Before freezing, when the soil is degreased, the winter irrigation is given to the orchard to keep the soil in a moist state, which can increase soil heat capacity, stabilize and increase the ground temperature,