氮肥运筹对烤烟产质量的影响  

Effects of Nitrogen Topdressing on Leaf Quality and Yield of Flue-Cured Tobacco

作　　者：刘卫群[1] 石俊雄[2] 陈良存[1] 李浩[1] 崔振伟[1] 陈旭初[1] 

机构地区：[1]河南农业大学,郑州450002 [2]贵州省烟草科学研究所,贵阳550003

出　　处：《贵州农业科学》2005年第5期51-52,共2页Guizhou Agricultural Sciences

基　　金：国家烟草专卖局重大资助项目<烟草平衡施肥技术试验与推广(1102000010011A)>

摘　　要：通过大田试验,研究了追氮量和追氮时期对烤烟农艺性状、上下部烟叶化学成分及评吸质量和经济性状的影响。结果表明:移栽后20 d追施30%氮素,烟株高,有效叶数多,上、下部叶各化学成分较协调、评吸质量好,上中等烟比例达87.5%,产量198.80 kg/667m2,产值1 681.80元/667m2,与其它处理的差异达极显著水平。The field test for studying the effects of nitrogen application on agronomical characters, leaf quality and yield of flue-cured tobacco was conducted in 2004. The result showed that applying 30%0 of total amount of nitrogen fertilizer as top dressing at 20 days after trans-planting obtained the higher quality of upper and lower leaf; the proportion on high-middle grade leaves amounted to 87.5% ; the yield and output value per 667m^2 reached 198.8 kg and 1681 yuan separately, showing very significant difference with the other treatments.

关 键 词：追氮时期 追氮量 烟叶 品质 

分 类 号：S572.062[农业科学—烟草工业]