球毛壳nd35菌肥对苹果连作土壤环境及平邑甜茶幼苗影响的研究

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1、－、＾＾．？：．每ｖ＾．；＾？：禅雜？，；扔：始诗沾二／—＇’、．－‘．：＊．ｔ．—．．＾、；．＇－＞－式巧扩：ｉ７：；Ｖ：＾思＾３？冷；＿＾祝亡．＇＇＂々类号：Ｓ卿．：手梦恕八，，爲，銭辑宗苗芳＾巧‘‘＂’讓麵－护研究学号：—‘；种辦．；雜；批．．，鴻ｉ寒蠻鑽串女．＇．‘、＇＂‘乂’八祭識打纖．片麵游Ｔ：讀：鄭與，Ｖ．１山來《冢疋常６－補蠢．伊；纖覆觀斬．■■’公．．－＇＇，、＇＇．‘佑Ｖ：■＇＇ｖ户Ｖ、．品啼；議穩雨±学也论文纖難！■？．作剖诚卷請京苗ｔ於：於．锭ＮＤ３５

2、菌肥对苹果连作±壤环境；臂罵讓答ｅ巧毛壳／海Ｐ鑛苗Ａ＇＇斬及平邑甜茶幼苗影响的研究；；到％請．ｒ声Ｉ、’－＇＇，、？＇．！＞—，沁＞、ＩＪＬ．；言＾节片ＥｆｆｅｃｔｓｌｏＮＤＳＳＦｕｎａｌＦｅｒｔｉｌｉｚｅｒｏｆＣｈａｅ化成化ｍｇｂｏｓｕｍｇ二：夢这皆作件罵二＾皆ｏｎＣｏｎｔｉｎｕｏｕｓＣｒｏｐｐｉｎｇＳｏｉｌＭｉｃｒｏｏｒｇａｎｉｓｍａｎｄ貧惡六巧货沾Ｍａｔｏ々面ｉｓＲｅｂｅｌ．ＳｅｅｄＵｎｇ掛ｏｍａｓｓ；鴻舞．；汝＞＾續繪，Ｉ．砖请，‘ｖ＼＼．．试知．．，；

3、，，！＜黎；唉軟，、、．、＇．．．．：．ｖ：．；：靜：拷ｆｂ；嘴知如巧興鱗，咬沾．‘＾－‘扭＇．．－心也＇＇．．．．、，－，＼．海＇．＇Ｖ研巧宝＊宋《：贫；；、；ｒ兴共赏：；如辜轉；：＇、＇护咳；．：．转法殘品研究方向果树生巧学、；乾；瓣．？＾．、如？‘＇、．．．如＞ｖ―冷ｆ减如／一Ｋ场．’糸＇‘＇‘”．’’．－工’：，户．，国爸拜程学巧＇：诚沪梦鱗餐＼＼学院学与、咕於巧矜：：毛志泉教授．励攀錢怒轉辦导教师，非讀皆记心；ｊ＇绛却，．．．？＇．－＾－＾＞、：．麵卿；激，或托；．若芯娜＾成典户二早

4、奋那年５月１０目．．酵巧萬．哨．谱：於．苦＾Ｃ＇：遮觀齡搏１苗鑛觀非；Ｌ；诗关于学位论文原创性和使用授权的声明本人所呈交的学位论文，是在导师指导下，独立组行科学研究所取得的成果、。对在论文研究期间给予指导帮助和做出重要贡献的个人或集体，均在文中明确说明。本声明的法律责任由本人承担。本人完全了解山东农业大学有关保留和使巧学位论文的规定，同意学校保留和按要求向国家有关部口或机构送交论文纸质本和电子版，允许论文被查阅和借阅。本人授权山东农业大学可将本学位论文的全部或部分内容编入有关数据库进行检索，可采用

5、影印、缩印或其他复制手段保存论文和汇编本学位论文，同时授权中国科学技术信息研究所将本学位论文收录到《中国学位论文全文数据库》，并向社会公众提供信息服务。保密论文在解密后应遵守此规定。论文作者签名－＾；苗：含导师签名；以麥年日期；戶睹佩日论文提交日期：2015年5月15日论文答辩日期：2015年6月8日学位授予日期：2015年6月17日学科门类：农学答辩委员会主席：王金政研究员目录中文摘要·····························································

6、··········································IAbstract······································································································III1前言·········································································································11.1连作障碍的

7、发生及其危害··········································································11.2连作障碍发生的原因················································································31.2.1土壤微生物群落的改变···········································································41.2.2土壤理

8、化性状变劣················································································41.2