果树改劣换优新技术─—花枝嫁接目前，一些果树的淘汰品种已不能适应市场需求的发展，经济效益低下，急需改劣换优。而现行改接措施多存在成形慢、结果晚、效益迟等缺点。为此，我们在实践中总结出一种改劣换优的新方法——花枝嫁接换优技术。该法当年秋季嫁接，次年即生... A new technology for improving the quality of fruit trees ─ ─ Squid grafting Currently, some species of fruit trees have been unable to adapt to the development of market demand, low economic efficiency, the urgent need to change the merits. However, there are many shortcomings of the existing reform measures such as slow formation, late results and late benefits. To this end, we summarize in practice a new method of changing the merits of merits - the best technology for grafting. The law grafted autumn, the following year students ...