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1 基部主枝过多。一般幼树期的苹果树,基部可保留多个主枝,但盛果期如果再继续保留下去,则势必造成下强上弱,枝条拥挤,影响光照,降低产量。因此,对于这种树体状况,必须对基部过多的主枝,有计划地在2～3年内进行逐年剪除或回缩,严禁一次性全部剪除。
1 base main branch too much. In general, the apple tree at the sapling stage can retain a plurality of main branches at the base, but if the fruit is still in its full-blossom stage, it will inevitably cause strong weakness and crowded branches which will affect the light and reduce the yield. Therefore, for this kind of tree condition, it is necessary to cut off or retract the main branch with too many basal branches in a planned way within two to three years. It is strictly forbidden to cut off all at once.