苹果树高接换头是更新品种的主要方法,而且具有树冠成形快、结果早、产量高等特点。15年生左右的树高接后2—3年即可结果,4—5年就能丰产。高接换头后,还可提高高接品种的抗寒能力,例如在锦州地区栽植的红富士苹果幼树抽条和冻死现象严重,而高接富士苹果却很少发生冻害,生长结果良好。 Apple tree high head replacement is the main method to update the variety, but also with crown forming fast, early results, high yield characteristics. Tree height of about 15 years after the pick 2-3 years to the results, 4-5 years will be able to yield. High-head, but also can improve the resistance of high-resistant varieties, for example, planting red Fuji apple trees in Jinzhou saplings and freeze-dead phenomenon is serious, while the high access Fuji apples are rare freeze damage, good growth results .