不同氮素水平对烤烟生长及物质累积的影响  

Effects of Different Nitrogen Levels on the Growth and Matter Accumulation of Tobacco

作　　者：李自林 秦娜 刘瑞瑞 LI Zi-lin;QIN Na;LIU Rui-rui(Huaping County Branch,Lijiang Tobacco Company,Yunnan Tobacco Corporation,Lijiang 674800,PRC;Big Data College,Yunnan Agricultural University,Kunming 650201,PRC;Tobacco College,Yunnan Agricultural University,Kunming 650201,PRC)

机构地区：[1]云南省烟草公司丽江市公司华坪县分公司,云南丽江674800 [2]云南农业大学大数据学院,云南昆明650201 [3]云南农业大学烟草学院,云南昆明650201

出　　处：《湖南农业科学》2021年第9期38-41,共4页Hunan Agricultural Sciences

摘　　要：以云烟99为试验材料,探索了不同氮素水平(施纯氮3.65、4.25,4.85,5.45,6.05 kg/667m^(2))对烟株农艺性状、烟叶干物质累积及钾含量的影响。结果表明:施纯氮5.45 kg/667m^(2)能改善各时期烟株的农艺性状,并在团棵期、旺长期和成熟期提高烟株干物质积累量以及烟叶、烟株和初烤烟叶中的钾含量。Using Yunyan 99 as material,the effects of various nitrogen levels(pure nitrogen 54.75,63.75,72.75,81.75,90.75 kg/hm^(2))on the agronomic characteristics,dry matter accumulation and potassium content of tobacco were studied.The results showed that T3(pure nitrogen 81.75 kg/hm^(2))could significantly improve the agronomic characteristics of tobacco plants at each growth stage,increase the dry matter accumulation of tobacco plants at the resettling and root-extending stage,vigorously growing stage and maturity stage,and raise potassium content in tobacco leaves,plants and raw flue-cured tobacco.

关 键 词：烤烟 氮肥 钾 干物质 质量 

分 类 号：S147.4[农业科学—肥料学]