文山烟后套作鲜食作物对土壤性状及上部烟叶品质的影响

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中图分类号：S572 文献标识码：A 文章编号：1006-060X（2025）11-0025-06

Abstract：Toselect suitable fresh food crops forintercropping after tobacco in thecore tobacco-growingarea of Wenshan，a fieldexperiment wasconducted with monoculture tobaccoas thecontrol （CK）.This studysystematicallycomparedtheefectsof intercropping with fresh maize （T1） ，soybean （T2） ，and pea （T3） on the physicochemical properties， enzyme activities，and microbial foraofthetbacozoseesoilaswellsobaccolafyielddualitesultsesummazdasfollos.d with CK， T1-T3 increased the rhizosphere soil pH and organic matter content. Specifically， T3 increased the organic matter by 39.8% ， while T2 significantly increased the alkali-hydrolyzable nitrogen content by 21.4% .In addition， T1-T3 significantly reduced the watersoluble chlorine content in soil. （2） T1-T3 enhanced the activities of catalase，sucrase，urease，and nitrate reductase，and increased the numberofbacteria， fungi，and actinomycetesin soil. （3） T1-T3 improved the economic traitsof tobacco leaves，with T2 achieving the highest yield and output value. （4） T1-T3 increased the total sugar content，reducing sugar content， potassum content，sugar-to-nicotine ratio，andpotasstoeatiuprtocoesgaotitisiallteopigtraetsdr approached the premium tobacco leaf standard range （8-1O）. Only T2 achieved apotassium-to-chlorine ratio >4 ，which indicatedthe best combustibility. （5） The total appearance quality scores ranked as T2>T3>T1>CK ，and the waste degrees in all intercropping treatments werelowerthanthatinCK.Inonclusion，intercroppingwiththetreefreshfoodcropsaftertobacocanefctively improve the soil properties，while enhancing the tobacco yield and quality. Overall intercropping with soybean （T2） demonstrated the most favorable effects and was recommended for application in the "tobacco +N′′ model in the core tobacco-growing areas of Wenshan. Key words： flue-cured tobacco; intercropping; microbial flora; fresh food crops; Wenshan

文山州地处我国云南省东南部，北回归线横贯其境，属典型的亚热带低纬高原季风区，冬无严寒，夏无酷暑。（剩余8919字）