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金帅、红星等中熟苹果,对大枝疏除的最佳季节是采收以后。一是此时叶片齐全,树株光照情况一目了然,不易搞错;二是疏除密挤枝后,改善了内膛光照,增强了叶功能,有利于促进成花和增加贮藏营养;三是在树体吸收、消耗、转化的功能正常运行下,疏枝后不会造成树上冒条徒长;四是疏除大枝的伤口容易愈合,减少病菌的感染;五是减少冬剪作业时间,有利对枝组进行细致的修剪。
Golden Marshal, Red Star and other medium-sized apples, the best season for sparse branches is harvested after. First, at this time leaves complete, the light of the tree at a glance, not easy to make mistakes; the second is to sparse close the crowded branches, improved bore light, enhanced leaf function is conducive to promoting flowering and increased storage of nutrients; Third, at Tree body absorption, consumption, transformation function under normal operation, after the thin branches will not cause the trees to take the risk of growth; Fourth, to sift the large branches of the wound easy to heal and reduce the infection of bacteria; Fifth, reduce winter shear operating time, Branch group for detailed pruning.