冬、春两季气温较低,果树(特别是幼树)容易遭受冻害。轻者枝条抽干,花芽冻伤,重者整株死亡,使果树遭受严重的损失。因此,必须及时做好冬、春两季果树冻害的防御和补救工作。一、冻前防御的措施1、适时施足过冬肥:采果后施用一次速效性与迟效性肥料配合的重肥,供给果树足够的营养,提高抗寒力。2、培土:霜冻前结合冬耕对果树进行培土,一般每株用200—300 Winter and spring temperatures are low, fruit trees (especially young trees) susceptible to frost damage. Light branches of the drained, bud frostbite, severe death of the whole plant, so that fruit trees suffered serious losses. Therefore, we must promptly do a good job in winter and spring fruit tree frost damage and remedial work. First, the measures before the frost 1, timely application of adequate winter fertilizer: After the application of a quick-acting and delayed fertilizer with heavy fertilizer, fruit trees provide adequate nutrition and improve cold hardiness. 2, earth: frost before winter plowing the soil to cultivate the fruit, usually with 200-300 per plant