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1986年以来,山东菏泽地区发展2.6多公顷密植果园.其中多系乔化树和矮化树混栽.4～5年生的幼树,大部分刚结果已交接封行.为使这批幼树矮化,我们采用了主干桥接矮化砧的方法进行改造,取得了较好效果。 1.具体方法 选树龄3～4年生的乔化单株,干周15cm左右为宜.于3月中下旬(发芽前),在主干上桥接3～4支无病虫的M26粗壮枝条,长30cm.接活后扒去主干上桥接段树皮.擦去形成层.防止树皮再生.也可先行主干绞缢后桥接. 2.结果 (1)具有明显的控长致矮作用.1988
Since 1986, more than 2.6 hectares of densely populated orchards have been developed in the Heze area of Shandong Province, of which many trees and dwarf trees have been mixed together, and most of the young trees aged 4 to 5 years have already been handed over to the seal. Dwarfing, we adopted the method of bridged dwarf anvil trunk to transform, and achieved good results. 1. The specific method selected tree age 3-4 years of Qiao plant, about 15cm dry week is appropriate in mid to late March (before germination), in the trunk of the bridge on the bridge 3 to 4 without M26 thick branches, long 30cm. Then live to pick up the trunk on the bridge section of the bark. Wipe the formation of layers to prevent the regeneration of the bark. Can also be the first trunk twist after the bridge. 2. Results (1)