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国光、祝光、元帅为苹果主栽品种,幼树和初结果期树生长旺盛,结果晚,早期产量低,是当前生产上存在的重要问题.针对上述问题,我们对国光等幼树进行晚春修剪(简称晚剪),多年试验与实践证明,国光等幼树晚剪后,由于萌芽和成枝率提高,树势得到缓和,5年即开始结果,6年丰产.如新金县四中果园4年生国光树连续两年晚剪,5年生株产8.25斤,6年生达37.2斤,而冬剪对照树(6年生)平均株产
Guoguang, Zhuangguang and Marshal are the main cultivars of apple trees, with vigorous growth of saplings and early fruiting stages, with late results and low early yields, which are important problems in current production. In response to these problems, we conducted late spring Pruning (referred to as late scissors), many years of experiment and practice have proved that, Guoguang and other young trees late shear, due to increased germination and branch rate, the tree potential has been eased, 5 years to start the results, 6 years of high yield. Orchard four-year Guoguang cut for two consecutive nights, 5-year-old plant yield 8.25 pounds, 6-year-old up to 37.2 kg, while the winter-cut control tree (6-year-old)