果树冬季爱冻,不仅影响来年产量,还影响果树正常的生长发育,果树冬灌就是在土壤封冻前浇灌一次封冻水。实践证明,灌封冻水能提高果树抗寒能力,并且还能提高树体营养。现将技术要点介绍如下:(1)冬灌时间,果树冬灌时间,以果实采收后到土壤封冻前为最佳时期。冬灌过早,气温还比较高,蒸发量大,不利于果树蓄水保墒,降低了果树抗寒冻能力;过晚则 Frozen fruit trees in winter, not only affect the production in the coming year, but also affect the normal growth and development of fruit trees, winter fruit irrigation is frozen in the soil before freezing water. Practice has proved that potting frozen water can improve the cold hardiness of fruit trees, but also improve tree nutrition. The technical points are introduced as follows: (1) winter irrigation time, winter fruit irrigation time to fruit harvest before the soil frozen for the best time. Early winter irrigation, the temperature is still relatively high, evaporation is not conducive to water storage and preservation of fruit trees, reducing the ability of cold-resistant fruit trees; too late