研究了移植西南桦组培苗苗期所使用不同的追肥品种和浓度对苗木成活率、苗高的影响差异。结果表明,使用红心土:火烧土:木屑=3∶3∶4 混合基质及钙镁磷6kg/m³基肥效果最佳;追肥使用质量分数为0.4%硫酸钾复合肥效果最好,成活率及苗木高度均高于其它处理。

Research work was done on the effective ness of topdressing varieties applied during transplantation period on the tissue-culture cultivated Betula alnoides seedling growth and survival rate. The results show that the compound fertilizer of red subsoil, burnt soil and sawdust with the proportion at 3∶3∶4 plus calcium magnesium phosphorus (6km/m³) produces best result and use of 0.4% potassium sulfate compound fertilizer is best, which is proved much better than other treatments in terms of seedling survival rate and height.