基质组成与施肥方式对红锥容器育苗效果的影响

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中图分类号：S722.3 文献标识码：A doi：10.13601/j.issn.1005-5215.2025.05.015

Effects of Substrate Composition and Fertilization Methods on Container Seedling Raising of Castanopsis hystrix

（Heyuan State-owned Guishan Forest Farm，Heyuan 517ooo，China）

AbstractCastnosishstrixisanimportantlocalprecious timberandcologicalrestorationtrespeciesinthesouthesubtropical Zone.TheoptiizationofitsontainersedlingraisingtechnologyiscucialtoimproveteefectivenessofaforestationTrough factorialexprimetalsignteitactieetsfsbtrateomposio（se-ligtsubtrateghtubstratetrdiial substrate P3）and fertilization strategies（dosage gradients： 2，6，10g ·plant-1，respectively;frequencies： 15，30d⋅time-1 ，respectively）on thegrowthandotdevelopmentofCastaopsishystrixcontainersedingsweresystematicallexploredTheresultsshowedthatthe typeofsubstratesgiicantlyetedthegrowthofseedlings.Undertesyergisticectoffertilzationconentrationofgplant and frequency of 15d⋅time-1 ，the seedling height（ 19.12cm ，ground diameter（ 0.34cm ），total biomass（3.89 “plant1）and root activity （0.40μg⋅g-1⋅h-1） of semi-lightsubstratePlwere the best，due toitsbalanceof waterretention，air permeability，andorganic matter supply.Thecompreensivescorewas1.23，whichwashigherthanthatoftraditionalsubstrateP3（0.35）underthesamefetilization treatment.Fertilizationfrequencyhdareguatoryectonootdevelopment.Highfrequencyfrtilization（15dtimesignificantly promotedmaioteongationndlatealothyperlasiaandteroot-shootratiodecreased，idicatingthatte“smallmontsnd multipletimes”modewasmoresuitableforthenutrientabsorptionrhythmofC.hystrix.Theadaptabilityofsubstrateandfertlization is the key，and the seedling growth and root development under semi-light substrate + high frequency fertilization are the best. The study suggests that the combination of substrate Pl and the fertilization scheme of 6 g 'plant ⋅1+15 d·time-l is the optimal treatment for the efficient cultivation of C hystrix container seedlings in the southern subtropical region.

Keywordssubstrate composition;precision fertilization;containerseedlings;rootactivity;comprehensive score

红锥（Castanopsishystrix）是我国南亚热带地区重要的乡土珍贵用材树种与生态修复树种，其根系发达、适应性强，对南方红壤区水土保持、石漠化治理及防护林体系建设具有显著生态价值[1-2]。（剩余4468字）