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在苗期分析的基础上，应用试验设计方法，选择了苗期表现不同的容器苗．对不同容器材料、尺寸和基质配比下的容器苗作造林后连续３年跟踪调查，以期从一段时间内考察它们在出圃造林后各处理组合及优良性状的持续效应．通过和裸根苗造林效果的对比试验，进行综合效益分析，在统计分析的基础上，确定最佳造林初效时容器材料、容器尺寸和基质配比的组合
Based on the analysis of seedling stage, the experiment design method was used to select the container seedlings with different seedling performance. The container seedlings under different container material, size and matrix ratio were tracked continuously for 3 years after the afforestation, with a view to examining their continuous effects of treatment combinations and fine traits after they were afforestation for a period of time. Based on the comparative analysis of the effects of afforestation with bare root seedlings, the comprehensive benefit analysis was carried out. Based on the statistical analysis, the combination of container material, container size and matrix ratio