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放任生长的成龄山楂树,修剪时应调节好各级骨干枝的关系,使生长和结果达到平衡。根据笔者多年的经验,对这类山楂树具体的修剪措施,可以概括为“七疏、五缩、两截、一培养”。1.七疏一是疏除干枯枝和病虫枝结合修剪,清除干枯的死亡枝和病虫枝,并集中烧毁。二是疏间骨干轮生枝要?
Allow the growth of mature hawthorn, trim should be good at all levels of the backbone of the relationship between the growth and the results to strike a balance. According to the author’s many years of experience, this hawthorn concrete pruning measures can be summarized as “seven sparse, five shrink, two cut, a training.” 1. Seven sparse one is to eliminate dry branches and pest branches combined with pruning, remove dead dead branches and pest branches, and concentrated burned. Second, the sparse backbone rotation branches to?