冻害是果树栽培中经常遇到的现象，冻害给果树生产带来的损失是不可估量的。果树因种类及品种的不同其遭受冻害的程度也有差异。但是同一种果树在不同的栽培管理和不同的生态条件下其抗寒力也有很大差别。这说明栽培管理不当及外界生态因子是造成果树冻害的主要原因。 一、栽培 Frost damage is often encountered in fruit tree cultivation phenomenon, frost damage to the production of fruit trees is incalculable. Fruit trees vary in their degree of frost damage due to different species and varieties. However, the same type of fruit trees in different cultivation and management and ecological conditions under different cold resistance is also very different. This shows that improper cultivation and management and external ecological factors are the main cause of frost damage in fruit trees. First, cultivation