人们都希望苹果能年年丰产,可是苹果树结果往往不稳定,有“大小年”结果现象。现在,我国果树科学工作者在总结群众经验基础上,找到了克服苹果树“大小年”结果的途径。这不仅为苹果稳产高产创造了条件,也为其它果树生产提供了参考。 People hope that Apple can produce high yields year after year. However, the results of the apple tree are often unstable, and there are “small and large” results. Now, based on summing up the experience of the people, the fruit tree scientists in China have found ways to overcome the “years of the apple tree”. This not only created conditions for the stable production of apples, but also provided references for other fruit production.