不同前茬对烤烟根际土壤微生物的影响  

Effects of Different Preceding Crops on Rhizosphere Microorganisms of Flue-cured Tobacco Plant

作　　者：李忠环[1] 韩智强[1] 高福宏 彭云[1] 史德[2] 杨正权[3] 杨丽琼[3] 付斌[4] 

机构地区：[1]云南省烟草公司昆明市公司,昆明650051 [2]云南省烟草公司昆明市公司安宁分公司,昆明650300 [3]云南省烟草公司昆明市公司寻甸分公司,昆明655200 [4]云南省农业科学院环境资源研究所,昆明650205

出　　处：《中国农学通报》2011年第22期114-118,共5页Chinese Agricultural Science Bulletin

基　　金：中国烟草总公司云南省烟草公司资助项目"昆明市基本烟田肥料减施增效与可持续利用"(09YN021)

摘　　要：以烤烟品种K326为材料,在石林和寻甸2个不同气候生态烟区,通过田间试验研究1年2熟条件下油菜、小麦、大麦、绿肥和冬闲5种前茬对植烟土壤根际微生物量的影响。结果表明:在2个生态区不同前茬对烟株根际土壤微生物的影响各不相同;前茬绿肥、小麦能增加烤烟根际土壤中后期细菌、放线菌数量,降低根际真菌量;大麦、冬闲前茬到烟株打顶时,根际土壤真菌数量明显大于油菜、小麦及绿肥前茬;在2个生态气候区,前茬种植油菜对烟田根际土壤真菌群落影响不明显,大麦与绿肥前茬下植烟土壤根际微生物量明显大于其他几种前茬类型,其中又以绿肥好于大麦。Took ＇ K326 ＇ of flue-cured tobacco variety as the experiment stuff.Preceding crops,depending on its type,has been commonly thought having positive or negative effect on rhizosphere microorganisms of flue-cured tobacco plant.Two field experiments were conducted with various before two ecology area different stubble to the smoke rhizosphere edaphon ＇ s influence.The first stubble green manure,the wheat can increase the flue-cured tobacco rhizosphere soil mid and late part bacterium,ray fungi quantity,reduced the rhizosphere fungus quantity.Before the barley,fallow,pinches off the stubble when to smoke,before rhizosphere soil fungi quantity obviously were bigger than the rape,the wheat and the green manure,the stubble.In two ecology climatic regions,the first stubble planter rape affects not obviously to the smoke field rhizosphere soil fungi community,before the barley and the green manure,under the stubble plants the smoke soil rhizosphere microorganism quantity to be bigger than several other kind,stubble type obviously,by green manure good in barley.

关 键 词：前茬 烤烟:根际微生物 生态区 

分 类 号：S1[农业科学—农业基础科学] S3