2023年6月第39卷第3期97不同栽培基质对大花荣耀木生长的影响*许海波苏杨张俊涛梁春梅周欢许昌超（广州市林业和园林科学研究院/广东省计量认证实验室/广州市生态园林科技协同创新中心，广东广州510405）摘要为提升大花荣耀木Tibouchinagranulosa栽培技术、筛选适宜其生长的栽培基质，以园林废弃物堆肥、椰糠、蛭石等材料均匀混配9种基质，以园林废弃物堆肥∶黄泥=6∶4为对照，研究不同栽培基质的理化性质及对大花荣耀木株高、冠幅、茎粗、SPAD、分枝数、生物量、根系形态等指标的影响，并采用隶属函数分析进行综合评价。结果表明：与对照相比，9种栽培基质的理化性质出现明显变化，pH降低0.1~1.3个单位，容重降低0.4~0.7g/cm3，有机质含量增加3.4~38.9g/kg、总孔隙度增加4.2%~16.4%以及通气度增加2.5%~15.2%，并有效促进了大花荣耀木的生长。隶属函数分析结果表明，T8（园林废弃物堆肥∶黄泥∶椰糠∶珍珠岩∶蛭石=4∶1∶2∶1∶2）为大花荣耀木较优的基质配方。关键词大花荣耀木；栽培基质；隶属函数中图分类号：S723.1文献标志码：A文章编号：2096-2053（2023）03-0097-09EffectofDifferentCultivationSubstratesontheGrowthofEffectofDifferentCultivationSubstratesontheGrowthofTibouchinaTibouchinagranulosagranulosaXUHaiboSUYangZHANGJuntaoLIANGChunmeiZHOUHuanXUChangchao（GuangzhouInstituteofForestryandLandscapeArchitecture/GuangdongProvincialMetrologyCertificationLaboratory/GuangzhouCollaborativeInnovationCenteronScience-techofEcologyandLandscape,Guangzhou,Guangdong510405,China）AbstractInordertoimprovethecultivationtechniqueandscreenoutthesuitablecultivationsubstratesforthegrowthofTibouchinagranulosa,ninesubstratesweredesignedbyusinggardenwastecompost,coconutbran,vermiculite,etc.Gardenwastecompost:yellowsoil=6∶4wasusedascontrol.Thesubstratesphysicochemicalpropertiesandtheireffectsonplantheight,crownwidth,stemdiameter,SPAD,branchnumber,biomass,androotmorphologywerestudiedandcomprehensivelyevaluatedbymembershipfunctionanalysis.TheresultsshowedthatthepHdecreasedby0.1-1.3,bulkdensityoftheninecultivationsubstratesdecreasedby0.4-0.7g/cm3,theorganicmattercontentincreasedby3.4-38.9g/kg,totalporosityincreasedby4.2%-16.4%,andventingqualityincreasedby4.2%-16.4%...
