养兰中碰到的缩头和回草现象,多半是该兰根部已受到不同程度的损伤,僵化或腐烂,很难再向上部输送养分所致。因此养兰尤须注重护根。兰花在江、浙地区都须入室越冬。进室后兰花需水量大减,务要做到视盆土给水,以偏干一些为好,以防蓄水烂根。出房后的兰花不能骤施浓肥,也不宜频频施肥,须待适应室外环境后(20天左右),再定期施些薄肥,以免肥过伤根。 Acclimatization and back to the grass encountered in the phenomenon of Lan, Lan Langen most of them have been subjected to varying degrees of injury, rigid or decay, it is difficult to transfer nutrients to the upper part. Therefore, special attention should be given care Langen. Orchids in the river, Zhejiang area have to enter the winter. After entering the room orchid water demand greatly reduced, as far as possible to do basin water, in order to dry some as well, to prevent water rot. The orchid after the room can not step fertilizer, it is not frequently fertilized, subject to be adapted to the outdoor environment (20 days or so), then apply some thin fertilizer regularly, so as to avoid fat injury roots.