果树防寒是果树栽培的重要措施之一。特别是在寒冷地区,防寒的好坏以及是否及时,直接影响次年植株的生长发育、产量,甚至影响到植株能否存活。因此,根据不同果树种类和品种的抗寒能力,产生冻害的时期和原因,确定各种果树的防寒方法。一、直立栽培果树的防寒目前省内栽培面积最大,数量最多的是直立栽培抗寒性较强的小苹果、梨、李、杏等。由于它们的抗寒性较强、因而往往在防 Fruit tree cold is one of the important measures of fruit tree cultivation. Especially in the cold areas, cold well and timely and whether the timely impact on the next year plant growth and development, yield, and even affect the survival of plants. Therefore, according to the different types of fruit trees and varieties of cold-resistant ability to produce the period and reason of frost damage, to determine a variety of cold-resistant fruit trees. First, the cold cultivation of fruit trees upright Currently the largest cultivation area in the province, the largest number of upright cultivation of cold hardy small apples, pears, plums, apricots and so on. Because of their strong cold resistance, which is often in defense