春季果树进入生长期后,树体抗寒性减弱,花器官耐寒能力降低,一旦晚霜来临,会使花芽受冻,影响坐果,因此应认真对待与防范。 1.推迟发芽、躲开晚霜为害 ①春季对果树主干、主枝进行涂白,降低树体温度、推迟开花3～5天,使花期躲过霜冻。②早春灌水可使果园土壤降低温度,达到预防霜冻之 After the spring fruit tree enters the growth period, the cold resistance of the tree is weakened and the cold tolerance of the flower organ is reduced. Once the night frost comes, the flower buds will be frozen and the fruit set will be affected, so the tree should be taken seriously and prevented. 1. Postpone germination, avoid the night cream damage ① spring fruit tree trunk, main branch Tu white, reduce the temperature of the tree, postponed flowering 3 to 5 days, so that the flowering period escaped the frost. ② Early spring irrigation can reduce orchard soil temperature, to prevent frost