水氮耦合对烤烟外观长势及烟叶干物质积累的影响  

Effects of Water and Nitrogen Coupling on Tobacco Appearance and Dry Matter Accumulation of Tobacco Leaves

作　　者：陈亚[1] 袁玲[1] 习向银[1] 

机构地区：[1]西南大学资源环境学院,重庆400716

出　　处：《河南农业科学》2009年第3期26-30,共5页Journal of Henan Agricultural Sciences

基　　金：西南大学博士基金(207009)

摘　　要：采用完全随机试验设计，研究水氮耦合对烤烟不同生育期外观长势及烟叶干物质积累的影响。结果表明，在灌水量60-80L／株，施氮量3-7g／株条件下，既可显著增加烤烟株高和茎围，促进叶片伸展，又可满足不同部位烟叶干物质积累的需要。Completely randomized design was conducted to determine the effects of water and nitrogen coupling on tobacco appearance and dry matter accumulation of tobacco leaves at different growing stages by designing different water and nitrogen treatments. The results indicated height and stem diameter of tobacco were enhanced remarkably, the leaves in different parts extended better with the range of irrigation 60-80L and nitrogen 3-7 gram for every tobacco. The treat- ment also satisfied the leavesrdry matter accumulating.

关 键 词：水氮耦合 烤烟 外观长势 干物质积累 

分 类 号：S572[农业科学—烟草工业]