基于正交试验设计的绿竹容器苗影响因素研究

采用L₉（3⁴）正交试验设计结合主成分分析法研究了影响绿竹容器苗质量的因素，试验设置的4个因素为容器类型、容器规格、基质种类和肥料类型，每个因素设置3个水平。试验结果表明：影响绿竹生长和发笋量的各因素主次顺序为：肥料类型>基质种类>容器规格>容器类型，其中肥料类型与基质种类为主导因子，对育苗质量起决定性作用；各因素的最优水平组合为：施用有机肥，采用泥炭与珍珠岩（7∶3）为基质，容器规格为25 cm×23 cm×23 cm（上口直径×下口直径×盆高），容器采用无纺布容器。

A Study of Factors to Dendrocalamopsis oldhami Container Seedling Based on Orthogonal Array Design

The factors influencing Dendrocalamopsis oldhami container seedlings were studied using L₉(3⁴) orthogonal test and principal component analysis. The 4 factors adopted in the experiment were container types, container sizes, cultivation matrixs and fertilizer types, respectively, and every factor were set at 3 levels. The results showed that The 4 factors influencing the growth and shooting quantity of D. oldhami were ranked as fertilizer type > cultivation matrix > container size > container type, while fertilizer type and cultivation matrix played a decisive role in the quality of seedlings. The optimal combination of the 4 factors was: non-woven fabric container at the size of 25 cm×23 cm×23 cm (upper base diameter×bottom diameter×pot height) and with peat and perlite (7∶3) as the substrate, to which organic fertilizers were applied.