盖县是我省苹果主要产区,现有结果树450万株,年产量为15～17.5万吨。由于树龄大和管理不善等原因,造成树冠不完整和株间缺株树达250万株,占结果树的56％。其中有的果园腐烂病严重,树势衰弱。这些原因都严重地影响着苹果产是的提高。因此,应采取积极措施改造老果园,提高其产量。 Gai County is the main producing area of ​​apple in our province, the existing results of 4.5 million trees, the annual output of 15 to 175,000 tons. Due to the large age and poor management and other reasons, resulting in incomplete canopy and strain trees between 2.5 million, accounting for 56% of the results of trees. Some of the orchards are rotten and the trees weak. All these factors have seriously affected the improvement of apple production. Therefore, we should take active measures to transform old orchards and increase their output.