不同前茬对烤烟干物质累积的影响及其营养调控研究

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1、分类号：密级：CDC：编号：硕士学位论文不同前茬对烤烟干物质累积的影响及其营养调控研究EffectsofDifferentPrecedingCropsontheDryMatterAccumulationanditsNutritionalRegulationinFlue-curedTobaccoPlants硕士研究生：段四喜指导教师：赵正雄教授申请学位类别：农学硕士专业：植物营养学培养学院：资源与环境学院二0一三年五月不同前茬对烤烟干物质累积的影响及其营养调控研究独创性声明本人声明所呈交的学位论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知，除了文中特别加

2、以标注和致谢的地方外，论文中不包含其他人已经发表或撰写过的研究成果，也不包含为获得云南农业大学或其它教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示了谢意。研究生签名：时间：2013年5月25日关于学问论文使用授权的声明本人完全了解云南农业大学有关保存、使用学位论文的管理办法及规定，即：云南农业大学有权保留送交论文的复印件和磁盘，允许论文被查阅和借阅，可以采用影印、缩印或扫描等复制手段保存、汇编学位论文。同意云南农业大学可以用不同方式在不同媒体上发表、传播学位论文的全部或部分内容。（保密的学位论文在解密后应遵守

3、此协议）研究生签名：时间：2013年5月25日导师签名：时间：2013年5月25日1不同前茬对烤烟干物质累积的影响及其营养调控研究目录摘要·········································································································1ABSTRACT······································································································31引

4、言·············································································································61.1烟草研究的意义··························································································61.2干物质对烟草生产的意义······························································

5、················61.3影响烤烟干物质累积的因素···········································································61.3.1施肥对烤烟干物质累积的影响·································································71.3.2轮作对烤烟干物质累积的影响·································································81.3.3影响烤烟干物质

6、累积的其余因素······························································81.4优质烟干物质累积规律·················································································91.5研究的目的和意义·······················································································91.6研究的内容················

7、······································································112材料和方法·······················································································122.1不同前茬烤烟干物质累积差异研究················································122.1.1供试品种和试验地点·······················