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隔年结果是成年苹果树生产上的一个重大问题。克服隔年结果的措施,除加强综合管理外,一般重视大年树的花果管理以减弱第二年的小年趋势,并对小年树用各种办法保花保果。根据赤霉素抑制花芽分化的原理,设想应用尿素促进苹果树的新梢生长,抑制花果分化,则可以是克服隔年结果的较易应用的方法。试验自1982年开始,1982、1983、1985三个年份内分别进行处理,品种金冠,国光,24或25年生树,试验年份树是小年,第二年大年,树势中等。试验地点北京市西郊农场自家疃
The next year’s result is a major issue in adult apple tree production. In addition to strengthening integrated management, the measures to overcome the following year’s results generally emphasize the management of flower and fruit of the Year tree to weaken the trend of the second year and to protect fruits and vegetables in various ways. According to gibberellin inhibition of flower bud differentiation principle, imagine the application of urea to promote apple tree shoot growth, inhibition of flower fruit differentiation, you can overcome the next year results more easily applied method. The test was conducted in 1982, 1982, 1983 and 1985 separately. The varieties Golden Delicious, Guoguang, 24- or 25-year-old trees, the test year tree is the small year, the second year the new year, the tree vigor is medium. Test site in the western suburbs of Beijing farm own house 疃