水杉扦插后至生根前,表现为一种假活状态,这时的养分供应,大都靠插穗本身的贮存.但根外追肥养分供应的好坏,对插穗生根成活也有直接的关系(表1). Metasequoia cuttings from root to root before the performance of a false living state, then the supply of nutrients, mostly by the cuttings themselves storage, but the root top-dressing nutrient supply is good or bad, has a direct relationship to the cutting root survival (Table 1) .