北方山区分布着大量野生酸枣资源，利用酸枣嫁接枣树，生长快结果早，经济效益显著。在山坡上生长的酸枣，由于土层薄、干旱、大风等原因，采用以枝干为砧木的普通嫁接方法存活率及繁殖系数均较低，难以达到生产要求。近几年来，采用以酸枣根为砧木的根接法对酸枣嫁接大枣... A large number of wild jujube resources are distributed in the mountainous areas in the north of China. Jujube trees are grafted with jujube jujube, and the fast-growing fruits are early with obvious economic benefits. Due to the thin layer of soil, drought and strong winds, the jujube growing on the hillside has low survival rate and propagation coefficient with the common grafting method using branches as rootstocks, which makes it difficult to meet the production requirements. In recent years, the use of root jujube rootstock root method for jujube grafted jujube ...