陕西苹果面积和产量的急剧增长,使得品种之间的差价越来越明显,一些档次低、着色差、风味淡的果实甚至实不出去。针对这种情况,各地果农不断通过高接换头等手段,去劣换新,调整品种结构,以便在激烈的市场竞争中获得生存和发展。为了使高接后的果树实现早果、优质、丰产,特提出以下建议: 1 合理修剪 由于高接树所抽新梢都是在对原砧树改造的基础上长出的,枝条的姿态十分杂乱,故在修剪时应根据各果园的立地条件、栽植密度和品种特点进行修剪,做到 Shaanxi apple area and the rapid growth of output, making the difference between varieties more and more obvious, some low grade, poor color, light flavor of the fruit is not even out. In response to this situation, the local peasants and peasants continue to use top-replacement tactics to change their products and adjust their product mix so as to survive and develop in the fierce market competition. In order to make the high fruit tree after the early fruit, high-quality, high yield, special make the following recommendations: 1 reasonably pruned as the pick tree shoots are high on the basis of the transformation of the original anvil tree growth, the branches of the gesture is very Clutter, so the pruning should be based on the site conditions of the orchards, planting density and variety of characteristics of pruning, so