容器规格、肥料种类和育苗基质对桢楠幼苗生长的影响

以半年生桢楠（Phoebe zhennan）幼苗为试材，采用正交试验设计，初步研究了容器规格、肥料种类和育苗基质对桢楠容器苗的苗高、地径、根系长、全株鲜重、全株干重影响。结果表明，不同的肥料种类对幼苗的苗高、地径、全株鲜重、全株干重均有显著影响（P<0.05），而容器规格和育苗基质对容器苗的生长无显著影响。对不同因素、不同水平的各个组合处理进行分析，半年生桢楠的容器育苗最佳组合为8 cm×12 cm的容器规格，施用5%有机肥作为基肥，采用80%森林土+20%的火烧土作为育苗基质，其次是10 cm×14 cm的容器规格，施用5%有机肥作为基肥，采用100%森林土的育苗基质。

Impact of Container Sizes, Fertilizer Types and Seedling Substrates on Seedling Growth of Phoebe zhennan

The impact of container sizes, fertilizer types and seedling substrates on seedling height, basal diameter, root length, and complete fresh/dry weight of the 6-month old container seedlings of Phoebe zhennan was preliminarily investigated with the orthogonal design of 3 factors and 3 levels. The results as follows: there was the significant impact of fertilizer types on seedling height, basal diameter, and the complete fresh/dry weight; there was no significant impact of container sizes and seedling substrates on growth of the container seedlings. The optimum treatment for 6-month old container seedlings of Phoebe zhennan was 8 cm×12 cm (container size) 5% organic fertilizer (ground fertilizer type) 80% forest soil (seedling substrate) 20% fire clay (seedling substrate); the second best treatment was 10 cm×14 cm (container size) 5% organic fertilizer (ground fertilizer type) 100% forest soil (seedling substrate).