苹果园主要由半乔化或乔化砧上的乔化树组成.Apple orchards comprised mainly of standard trees on semi - vigorous or vigorous rootstocks.在西北部地区用灌木树篱把它接在实生砧 、 无性砧及矮化砧上.In the Northwest, they are being planted by hedgerow on seedling roots, clona...

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“砧”的拼音为：zhēn...