一、环剥对象。适龄不结果大树或结果少的旺树旺枝及辅养枝等。一般不进行主干、主枝环剥。小树及盛果期大树不宜环剥,以免影响树体发育,造成树体衰弱。二、环剥应看品种。目前所建果园品种大部是红星系、富士系、乔纳金系、短枝和矮化品种。其中短枝、矮化品种易形成花芽,不需环剥,红星系品种剥口愈合比较慢,环剥后树势衰弱较快,易造成树枝的死亡,可采用环割的方法促进花芽的形成。乔纳金环剥时不要伤及木质部,否则易断枝。富士系也不宜主于环剥,环剥应以辅养枝为主,生长旺的长枝环剥一般当年可形成花芽,且结果多,质量好。三、环剥时间。应掌握春梢停长后施 A, girdle the object. Age-unsuccessful tree or results less Wang Mong branches and supporting branch. Generally not for the trunk, the main branch girdling. Trees and fruit trees should not ring pendants, so as not to affect the development of trees, resulting in tree debilitating. Second, girdling should look at varieties. At present, most of the orchard varieties are red galaxies, Fuji, Jonathan, short branches and dwarf varieties. Among them, spur and dwarf varieties are easy to form flower buds, without girdling, the healing of the red galaxies is relatively slow, and the gingival declines rapidly after girdling, which may easily cause the death of the branches. The flower bud formation can be promoted by ring mowing . Do not hurt the xylem when it is gnarled, otherwise it will break easily. Fuji system should not be the main ring girdling, girdling should be supplemented by the main branches, growing branches and girdling the general year can be formed when the flower buds, and the results of many, good quality. Third, girdling time. Should be held after the spring shoot long stop