榔榆的生命力极强,一般情况下不存在育桩失败问题。但由于这样或那样的原因,有的当年培植的榆桩,在春季萌芽情况良好,芽点到位,长势正常,进入夏季后却出现枝芽生长停滞现象。主要表现为枝芽生长极其缓慢,叶距过密,叶面无光泽,缺少生机,在管理上又无法找出其他原因。这种情况则可判断该树的根部截面出现了腐烂现象,可通过急救办法来避免树桩的死亡,恢复树桩的生机。具体的操作办法如下。 Elm elm vitality, under normal circumstances there is no problem of failure to educate piles. However, due to one reason or another, some of the elm piles cultivated in that year were well sprouted in the spring, buds were in place and grew normally. After the summer, buds grew stagnant. Mainly for the extremely slow growth of buds buds, leaves too close, leaves matte, lack of vitality in management and can not find out other reasons. In this case, the decay of the root section of the tree can be judged. The first-aid method can prevent the death of the tree stump and restore the life of the stump. Specific methods of operation are as follows.