1994年春,发现1993年新植红富士大部分幼树发生抽条现象,还有相当一部分冻死,主要原因一是1993年幼树生长量大,后期生长旺盛,新梢停止生长晚,枝条不充实,营养积累不足。二是由于封冻水过大,至使土壤通气不良,引起根系衰弱死亡。三是由于树干基部埋土堆,早春根际土温上升慢。四是由于大绿浮尘子的为害以及秋季扩穴伤根太多而引起抽条。 In the spring of 1994, it was found that most young saplings of newly planted Red Fuji in 1993 were splatters, and a considerable part of them were frozen to death. The main reason was that the young sapling grew in 1993 with strong growth in the late period, the shoots stopped growing late, and the branches did not grow Enrichment, lack of accumulation of nutrients. Second, due to too large frozen water, so that poor soil aeration, causing a weak root death. Third, as the base of the trunk burial mound, early spring rhizosphere temperature rise slow. Fourth, due to the damage caused by the big green buoyant dust and the fall of the hole caused by too much root pumping strip.