施磷肥对刺槐萌生林生长与营养积累的影响

打开文本图片集

中图分类号：S714.8 文献标志码：A 文章编号：1673-923X（2025）08-0095-08

【Abstract：Objective】FertilesoilisanimportantguaranteefortheefcientgrowthofRobinapseudoaaciaplantatiosowdays cultivatingsecond-generationsproutingforestsisanimportantaytobuildigqualityobiniapseudoacaciaplantatios.However therisurrentlylitleresearchonthefertilizationefectofyoungRobiniapseudoacacisproutingforestsandalackofrelevant applicationtechologresearchTerefore，studyasconductedontheertilzatiofectofsecond-generationRobiiapsedoaci sproutingforeststoexploretheoptimalphosphorusaplicationrateandfertilizationmethodforpromotingthegrowthof secondgenerationRobiniapseudoaacia sprouting forests，providingfeasibletechnicalsolutions forprecisefertlizationofyoungRobinia pseudoacacia sprouting forests.【Method】Using 8-year-old second-generation Robinia pseudoacacia sprouts asexperimental materials，atwofactorandomizedblockdesignwasadoptedfordiferentfertilizationmethodsandamouts.Thegrowthindicators andnitrogen（N），osposndot（Klemnttetsofthtstedoinpdoialesreosly monitored.【Result】Theresultsshowedthat theapplicationof phosphorus fertilizerhadasignificantpromoting effctonthe growthofsecond-generationRobiniapseudoacacia sprouting forests;FordiferentcultivationgoalsofRobiniapseudoacacia， precisecultivationand managementcanbeachievedbyadoptingdiferent fertilizationamountsand methods.Forexample，for cultivating energy forests， 75g/plant P2O5 canbe applied，while forcultivatinghigh-quality building timber forests， 50g/plant P2O5 canbe applied;For the juvenile Robinia pseudoacaciasprouting forest，the application of75g/plant P2O5 treatment resulted in the maximumvasofeteratastightssdgosposdoaitinttet leavesof Robinia pseudoacacia，which were significantly higher thanother treatments;Underthetreatmentofapplying 100g/plant P2O5. thetreeeightreacheditsmaximumvalue;ThecontentofPandKnutrientsinthelowerleavesreacheditsmaximumvalueunder the treatment of 50g/plant P2O5 application.【Conclusion】Based on the comprehensive evaluation of the measured indicators，this study concludes that broadcasting 75g of P2O5 per tree is the most efective fertilization treatment for promoting the growth of young Robinia pseudoacacia coppice stands.

Keywords：Robinia pseudoacacia; fertilization;growth indicators;nutrient：

刺槐Robiniapseudoacacia为豆科刺槐属多年生落叶阔叶乔木，原产于北美洲，18世纪从欧洲引入我国后，表现出极强的生命力，具有生长迅速、适应性强、耐贫瘠、抗旱等特点，应用栽培广泛。（剩余13983字）