不同基质对桉树育苗效果的影响

The Effect of Different Media on the Eucalyptus Seedlings

利用泥炭、椰糠和腐熟稻壳混配寻找适合桉树育苗的轻型基质。依据格子试验以腐熟稻壳为配比基础筛选出理化性质优良的13个基质配比进行桉树育苗影响研究。结果表明,不同混配基质对桉树幼苗的株高、地径、地上和地下部分鲜重、干重均有显著影响。采用主成分分析对不同基质的应用效果进行的综合评价表明,处理9(泥炭∶椰糠∶腐熟稻壳=1∶3∶6)表现最佳,是适合桉树育苗的理想基质。腐熟稻壳可以完全取代炭化稻壳应用于桉树育苗,并且可以加大腐熟稻壳用量可以降低生产成本。

In order to find a light media for cutting eucalypts seedlings, the lattice method was used to test 13 media of different ratio of peat, coconut husk and decomposed rice husk. The result showed that different composition had significant affect on height, diameter, ground and underground fresh weight, dry weight.Principal component analysis showed that T9 （peat： coconut husk powder： rice hulls=1： 3： 6） was the best media for eucalyptus seedlings. Decomposed rice husk could completely replace carbonized rice husk in eucalyptus seedlings, and could increase the amount of decomposed rice husk to reduce production costs.