大花四照花容器育苗基质配方筛选试验

Study on Substrates Selection for Container Breeding of Cornus florida

用KLASMAN泥炭、熊猫牌泥炭、黄土、珍珠岩和蛭石等材料配制成不同基质，进行大花四照花容器育苗栽培试验。结果表明：各种配方基质的肥力等级均高；KLASMAN泥炭＋熊猫牌泥炭＋黄土（比例为2∶1∶1）配方的植株地径、苗高和叶片数最大，且叶片数与其它不同配方间的差异达极显著（P＜0．01），最适宜容器苗生长；持水率高、镁元素含量高以及0．25～1．00 mm土壤颗粒含量高的基质不利于容器苗生长。

In order to select the best substrate for the container seedling of Cornus florida,KLASMAN peat,panda peat,soil,perlite and vermiculite were mixed in different proportions to form 5 substrate formulations, which were used as growth media to study their effects on the C.florida.The results showed that the fertilizer de-gree of all formulations were high;the best formulation for C.florida was KLASMAN peat：panda peat：soil=2∶1∶1 ,which had the highest ground diameter,seedling height and leaf mumber,and leaf number showed high signifi-cant difference from other 4 substrates;the high water content,Mg content and 0.25 ~1 .00 mm soil particle could effectively inhibit the growth of container seedling.