我国北方山区有大量野生酸枣资源，利用其嫁接大枣品种，生长快，结果早，经济效益显著。但因山坡土层薄、干旱、风大，在酸枣枝干上嫁接存活率低。１９９３年在酸枣根部用根接法嫁接大枣品种，收到了极好效果。在此基础上，１９９４年春在卢龙县王家山村散生酸枣的荒坡上，对 There are a large number of wild jujube resources in northern mountainous areas of our country, using their varieties of grafted jujube, grow fast, the result is early, the economic benefit is remarkable. However, because of the hillside soil thin, arid, windy, grafted on the jujube branch survival rate is low. In 1993 the roots of jujube root grafting jujube varieties, received excellent results. On this basis, in the spring of 1994, on the barren hillside of wild sour jujube in Wangjiashan Village, Lulong County,