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栽培苹果树的目的,就是要年年获得高产、稳产、优质。但是在生产实践中,往往有不少苹果树,出现一年结果多,一年结果少的大小年结果现象。并由此引起树势早衰,质量低劣,以及招致腐烂病,造成正株死亡,给生产上带来了严重后果。因此大小年结果问题是苹果生产上急待解决的一个重要的实际问题。那么对已经出现大小年结果的苹果树,究竟应该怎么解决,根据我们多年实践经验认为:在加强以土、肥、水为中心的地下管理的基础
The purpose of cultivating apple trees is to obtain high yield, stable yield and high quality every year. However, in production practice, there are often many apple trees, with the result of more than one year and the result of year-to-year small-year results. Which led to premature decline of tree vigor, poor quality and rot disease, resulting in the death of Zheng Zhu and serious consequences on production. Therefore, the size of the year-end result of the problem is Apple’s urgent need to solve an important practical problem. So what should we do about the apple trees that have appeared the size year result? According to our many years of practical experience, we think that in strengthening the foundation of underground management centered on soil, fertilizer and water