稀土在杜仲上的应用研究

选用易于观察研究的杜仲幼苗、幼林、种子、扦插用的枝条作为试验材料，研究了稀土在杜仲上的应用效果和施用技术，并研制了一种高效价廉的林用促长剂

Studies on Application of Rare Earth Compounds to Culture of Corter Eucommiate

A lot of experiments were made.The corter eucommiate seeds were soaked with a proper concentration of rare earth compounds.Germination percentage of the seeds was 9.5 to 17.1% higher than CK,period of germination was shorter than CK,growth of the lift seedlings and resistance to disadvantageous environment were promoted.The branch of corter eucommiate tree treated with rare earth compounds breaded,live ratio of the branch was 3.5 to 8.0% higher than CK,the number of roots increased.The lift seedlings are sprayed with rare earth compounds,growth of lift seedling was promotedRatio of the first or second grade seedlings was 15% higher than CK or so.The infant corter eucommiate tree were sprayed with rare earth compounds,growth of the tree was promoted,its infancy was shorter than CK,yield of corter eucommiate skin increased.In addition,in the paper,the applied technology of rare earth compounds were studied in culture of corter eucommiate.