黑核桃是果、材兼优树种 ,其优良无性系的繁殖多以嫁接为主 ,我们在生产实践中采用的春季单芽枝嵌接法 ,较传统的枝接法具有成活率高、省接穗的优点 ,现介绍如下。1　接穗采集和贮藏接穗采集时间应在 2月上中旬 ,剪生长充实的 1年生发育枝 ,每 30～ 50根捆一捆 ,于冷凉的室内或 Black walnut is a fruit, timber and tree species, the propagation of its excellent clones mostly to grafting, we used in the production of spring single shoot sticking method, the traditional method of sticking has a high survival rate, the provincial spike The advantages are as follows. 1 scion collection and storage Scion collection time should be in mid-February, cut the growth of a full year-long growth branch, every 30 to 50 bundles of a bundle in a cool indoor or