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新植苹果幼树,由于苗术质量、品种特性及其他因素,定干后往往有一些树在剪口下春季只发生2条或3条新梢,秋后形成“二枝树”、“三枝树”,枝量少于整形需求,使得次年整形困难。据调查,在博山地区新建园中,这种缺枝树约占10—15％,有些园个别品种可达25％。在对这种“二枝树”、“三枝树”整形时,传统的办法是,翌春对第一枝(中干)留20厘米重短截,选一定部位的芽子刻伤,以期促发新的补位主枝;对已有的主枝留40—50厘米打头,以期
Newly planted young apple trees, due to the quality of nursery, variety characteristics and other factors, there are often some trees after setting dry in the spring only two or three shoots occur in the fall, the formation of “two branches of trees”, “three branches Tree ”, the amount of branch less than plastic surgery, making the following year plastic surgery difficult. According to the survey, in the new park in Boshan area, about 10-15% of this branchless tree, some parks up to 25% of individual varieties. In the “two branches of trees,” “three branches of trees,” the plastic surgery, the traditional approach is the next spring on the first branch (dry) to stay 20 cm short stub, choose a certain part of the bud injury engraved, with a view to promoting Make a new fill the main branch; the main branch of the existing 40-50 cm to leave the beginning, in order