苏铁在自然状态下皆为单头,顶芽有极强的生长优势,很难分化腋芽,顶端多头苏铁极为少见。若想获得多头苏铁,需进行分芽、除芽、切芽手术。分芽在春季新芽萌发前,选择根系发达、株形健壮的苏铁,将叶片全部剪除,便于操作。用小手锯或快刀在顶芽中心垂直位置,向下锯裂或用快刀向下切开,先横后竖,呈十字形,深度达到芽的底部,不可过浅,在不能确定是否断开的 Cycas in the natural state are all single, the top bud has a strong growth advantage, it is difficult to differentiate axillary buds, the top of the long-headed cyclamen is extremely rare. If you want to get long cycas, need to be divided buds, in addition to buds, cut the bud surgery. Split bud in the spring before the germination of new buds, select the developed root system, sturdy plant-shaped cycads will cut all the leaves, easy to operate. With a small hand saw or sharp knife in the vertical center of the top bud, sawing down or cut down with a sharp knife, the first horizontal after the vertical, was cross-shaped, the depth of bud to the bottom, not too shallow, can not determine whether the disconnect