江城县茶园土壤养分状况分析与评价

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中图分类号：S571.1；S158 文献标识码：A 文章编号：1000-3150（2025）08-47-10

Analysis of Soil Nutrient Status of Tea Gardens in Jiangcheng County

CHENHongyun'，CHEN Qiang'，LUO Ziwen'， YANG Xiangde²，QU Hao'，LONG Lixue'，

CHENLong'，WANG Yungang'，LONG Yaqinl*，CHEN Linbo

1.YunnanAcademyofAgricultural Sciences Tea Research Institute/YunnanTea GermplasmResources Inovationand Cultivation

Technology EngineeringResearch Center/Yunnan Tea Science KeyLaboratory，Kunming 6502O1，China;

2.Tea Research Institute，Chinese Academy of Agricultural Sciences，Hangzhou 31ooo8，China

Abstract： As acore production area of Pu'er tea in China，the soil nutrient status ofthe tea gardens in Jiangcheng County， Yunnan Province，directlyafects thequalityof tea and the sustainable developmentof thetea industry.Inresponse to the soil degradationcausedby long-termextensive management，this studysystematically evaluatedthesoil nutrient characteristics and fertity qualityofsix major tea-producing towns in Jiangcheng County.Based on90 soil samples and1l indicators，the spatial diferentiation lawofsoil fertilityandthe keylimitingfactors were revealed.Theresults showthat theteagardens inJiangcheng Countywere generallstronglyacidic toslightlyacidic，withsignificantregional variations.Areas suchasJiahe Township were atrisk ofacidification.The soilorganic matercontent was rich，the total nitrogencontent was moderately high，theavailablephosphorus Was generalyscarceand hadalarge spatial variation. The available potassium had significant regional variations，calcium and magnesium were generallydeficient，iron and manganese were highlyenriched，andtheavailablecopperand zinc were severely insufficient.Itis suggestedtoadopt an integrated management strategy of "acidification control- precise fertilization- micro-fertilizersupplementation"， which includes improvingacidified soil through organic fertilizer，optimizing theratioof phosphorus and potasium in different regions，supplementing calcium，magnesium，phosphate fertilizers and copper，zinc foliar fertilizers，and promoting the intercropping of green manure to stabilize organic matter.This study provideda scientific basis for the targeted improvement and sustainable management oftea garden soils in Jiangcheng County and had an important reference value for improving the qualityand efciency of tea gardens in Yunnan and similar ecological areas.

Keywords： tea garden，major elements，pH， soil nutrients

茶是世界三大饮品之一，茶树作为一种多年生叶用植物，土壤为其生长发育提供了物质基础[-3]。（剩余12402字）