土壤水分和施肥对木姜叶柯生长与光合特性的影响

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关键词木姜叶柯；土壤水分；施肥；生长；光中图分类号S792.99 文献标识码A文章编号 0517-6611（2026）03-0048-04doi：10.3969/j.issn. 0517-6611. 2026.03.010开放科学（资源服务）标识码（OSID）：

Efects of SoilMoistureandFertilizatioontheGrowthand PhotosyntheticCharacteristicsofLithocarpus itsefolius（Hance）Chun QIU Xiao-ya23，Sengua23，GUShej12etal（1.ColeofoicandFdEngerin，HuaaUnieit Huaihua，Hunan418;2.KeyLaboratoryofHunanProvinceforStudyandUtlizationofEthnicMedicinalPlantResouces，HuauaHu nan41800;3.KeylaboratoryofHunanHigherEducationforWesternHunanMedicinalPlantandEthnobotany，Huaiua，Hunan48000） Abstracthssdyieaedoflostuedertotohdosteicaracterstofotd carpuslitseflus（Hane）CunimingtorovidethoreticalgidaceforitsltivationdfeldmanageentFivelvelsofsilsu were tested： W1 （3.3%） ，W2 3.7%） ，W3 （4.6%） ，W4 （5.7%） ，and W5 （8.0% ）. Similarly， five fertilization treatments were applied： F1 （ 0g/pot/ ，F2 （ 40g/pot） ，F3（ 80g/pot ），F4（ 120g/pot） ，andF5 （ 160g/pot ）. Growth parameters， including plant height， numberofbrachs，rachlgthndteameteeeasudototheicaracterstiseseedusingLble photosynthsisetealongiompsosofoohllotetndopholoicalraitsoftelantsndavs.eesultsidatdat at a soil water content of 8.0% （W5），plant height increased most significantly （15.77cm ），and chlorophyll content （ 2.4mg/g ）and net photosynthetic rate improved markedly. In contrast，when soil moisture fell below 4.6% （W3），growth rates declined，and the maximum efficiency of photosystem II （ （Fv/Fm） diminished.In terms of fertilization，the application of 40g/pot （F2）of organic fertilizer significantly enhanced plant height （23.27 cm）and chlorophyll synthesis （ 1.48mg/g ）;however， a negative effect was observed when the application exceeded 80g/pot （F4）.This research demonstrated that the response of L. litseifolius to water and fertilizer followed an“inverted U-shaped” curve，with optimal cultivation conditions identified as soil moisture levels between 5.6% and 8% and organic fertilizer application rates of 40 to 80g/pot . These findings provide a theoretical foundation for the efficient cultivation and management of L. litseifolius . KeyWordsLithocarpus litseifolius（Hance）Chun;Soil moisture;Fertilization;Growth;Photosyntheticcharacteristics

木姜叶柯[Lithocarpuslitseifolius（Hance）Chun]为壳斗科常绿植物[1]，兼具茶、甜、药三重功能，其嫩叶可加工制成甜茶饮品，具有高甜、低热和无糖等特点[2-3]。（剩余9072字）