在盐碱地苹果园中，黄化现象十分普遍。尽管黄叶病的研究已有一个多世纪的历史，但仍没有彻底解决。主要是因为影响因素众多，机制不清等，从而使矫治措施费时费工，不经济或效果不稳定。因此进一步开展苹果等黄叶病影响因素及矫治方法的研究有十分重要的意义。1盐碱地苹果园黄 In saline-alkali apple orchards, yellowing is very common. Although the study of yellow leaf disease has been more than a century old, it has not yet been completely solved. Mainly because of many factors, the mechanism is unclear, so that corrective measures take time and laborious, uneconomical or effect is not stable. Therefore, it is of great significance to further study the influencing factors of yellow leaf diseases such as apple and corrective methods. 1 saline alkali apple orchard yellow