枣树寿命长,在枣区常见树龄二三百年的枣树依然结果良好。成龄金丝小枣或其他大枣树改接冬枣,不仅可以延续枣树的经济寿命,而且嫁接投资少、树冠恢复快、早果丰产,较利用冬枣幼树建园可提早2～3年见效益,是冬枣快速建园的一个好方法。但是成龄枣树高接冬枣不仅要求科学的嫁接技术,而且要通过3年连续不断的规范管理,才能使嫁接树树型稳固、结果稳定,接后2年长成新树冠,3年恢复树体原产量。文中阐述了冬枣高接换头技术(包括接穗选择、采集、接穗封蜡处理、嫁接时期、嫁接方法、剪砧和嫁接方式等)和接后3年的管理技术要点(包括抹芽、放芽、新梢绑缚、土肥水管理、修剪、花果管理和病虫害防治等)。 Jujube long life, jujube common two or three hundred years old jujube still good results. Jujube or other date jujube switch to jujube, jujube can not only extend the economic life, but less investment in grafting, canopy recovery faster, early fruit yield, jujube jujube garden than the use of early construction can be 2 to 3 years See benefits, is a good way to quickly jujube garden. However, jujube mature jujube not only requires scientific grafting technology, but also through 3 years of continuous and standardized management, in order to make the grafted tree type stable, the result is stable, then grow into a new crown 2 years later, 3 years to restore the tree Original production. This article elaborates the technical points of Dongzao high head replacement technology (including scion selection, collection, scion sealing wax treatment, grafting period, grafting method, cutting anvil and grafting method) , Shoots tied, soil fertilizer and water management, pruning, flower management and pest control, etc.).