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《施用沼液浓度对苏木苗期生长的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、南方农业学报JOURNALOFSOUTHERNAGRICULTURE2013,44(9):1500—1503ISSN2095-l19l:CODENNNXAABhttp://www.nfnyxb.cnDOI:10.3969/j:issn.2095-1191.2013.9.1500施用沼液浓度对苏木苗期生长的影响魏世清1,2’3,覃文能1,甘福丁1,彭玉华1'2,3,伍琪1’2,3(1广西林业科学研究院;2国家林业局中南速生材繁育实验室;3广西优良用材林资源培育重点实验室:南宁530002)摘要:【目的】探讨苏木苗期沼液适宜的施用浓度,为沼肥在
2、林业树种上的应用提供参考。【方法】通过单因素完全随机区组试验,研究施用不同稀释浓度(农灌水与沼液稀释比例分别为3:1、1:l、1:3)沼液对苏木苗生长的影响。【结果】苏木苗生长随着沼液浓度不同表现出较大差异,稀释比例为1:1时苏木苗苗高、地径显著高于其他处理。不同浓度的沼液对苏木苗生物量指标影响显著,其中稀释比例为1:1处理苏木苗根鲜重、地上鲜重、根干重、地上千重高于对照。苏木苗苗木质量指数随沼液浓度变化表现出差异,稀释比例为l:1处理苗木质量指数为5.49,显著高于对照。【结论】苏木苗期施用沼液能有效促进苗木生长,施用时需要做稀释处理,稀
3、释比例为1:l效果最佳。关键词:沼液浓度;苏木苗;生长;生物量;苗木质量指数中图分类号:$723.7文献标志码:A文章编号:2095—1191(2013)09—1500—04EffectsofbiogasslurryonCaesalpiniasappanLinngrowthWEIShi-qin91’2’3,QINWen—nen91,GANFu—din91,PENGYu—hual’2’3,WUQil’2’3(1GuangxiAutonomousRegionForestryResearchInstitute,Nanning530002,Chin
4、a;2KeyLaboratoryofCentralSouthFast-growingTimberCultivationofForestryMinistryofChina,Nanning530002,China;3GuangxiKeyLaboratoryofSuperiorTimberTreesResourceCultivation,Nanning530002,China)Abstract:【Objective]ThesuitablebiogasslurryconcentrationonCaesalpiniasappanLinnwasstud
5、iedtoprovidereferencesfortheapplicationofbiogasslurryonforestry.【Method]Singlefactorandcompletestochasticregionexperimentswereperformedtoresearchtheeffectsofbiogasslurryofdifferentconcentrations(Dilutionratioofirrigation/biogasslurrywas3:1,1:1and1:3)onCaesalpiniasappanLinn
6、growth.【Result]ThegrowthofCaesalpiniasappanLinndisplayedbigdifferenceswithdifferentconcentrationsofbiogasslurry.Indilutionratioof1:1,diameter,height,shootfreshweight,rootfreshweight,rootdryweightandshootdryweightweresignificantlyhigherthanthoseofothertreatments.Indilutionr
7、atioof1:1,theseedlingqualityindexwas5.49,whichwassignificantlyhigherthanthatofCK.ThebiomassvaluesofCae.salpiniasappanL.hadsignificantdifferenceswithdifferenttreatments.【Conclusion]ThedilutedbiogasslurrycouldpromotegrowthofCaesalpiniasappanLinn,andthebestdilutionratiowas1:1
8、.Keywords:biogasslurry;CaesalpiniasappanLinn;growth;biomass;qualityindexofseedling0引昌【研究意
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