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氮素形态和数量对烤烟干物质积累及钾含量与积累量的影响
引用本文:化党领,黄向东,刘世亮,介晓磊,李有田.氮素形态和数量对烤烟干物质积累及钾含量与积累量的影响[J].河南农业科学,2005(5):49-52.
作者姓名:化党领  黄向东  刘世亮  介晓磊  李有田
作者单位:1. 河南农业大学,河南,郑州450002
2. 河南农业大学,河南,郑州450002;郑州牧业工程高等专科学校,河南,郑州450011
基金项目:河南省烟草专卖局重大项目 (HYKJ2 0 0 2 0 3)
摘    要:水培条件下,于烤烟打顶后改变营养液中铵硝配比(NH+4 -N/NO- 3-N)和氮素浓度,对烤烟体内干物质积累量及根、茎、叶的钾含量和积累量进行研究。结果表明,水培条件下,铵硝配比0∶10 ,氮素浓度14 0mg/L时烤烟干物质积累量达到最大。烤烟叶片和茎中钾含量在铵硝配比为0∶10 ,氮素浓度35mg/L时达到最大,钾积累量在铵硝配比0∶10 ,氮素浓度14 0mg/L时最大。而烤烟根中钾含量和积累量在铵硝配比5∶5 ,氮素浓度70mg/L时最大。不同处理烤烟不同部位钾含量和积累量的变化规律均表现为叶>茎>根

关 键 词:烤烟  氮素  铵态氮  硝态氮  
文章编号:1004-3268(2005)05-0049-04
修稿时间:2004年12月2日

Effects of Nitrogen Form and Concentration on Flue-cured Tobacco Dry Matter Accumulation and Potassium Content and Accumulation
HUA Dang-ling,HUANG Xiang-dong,LIU Shi-liang,JIE Xiao-lei,LI You-tian.Effects of Nitrogen Form and Concentration on Flue-cured Tobacco Dry Matter Accumulation and Potassium Content and Accumulation[J].Journal of Henan Agricultural Sciences,2005(5):49-52.
Authors:HUA Dang-ling  HUANG Xiang-dong  LIU Shi-liang  JIE Xiao-lei  LI You-tian
Institution:HUA Dang-ling 1,HUANG Xiang-dong 1,LIU Shi-liang 1,JIE Xiao-lei 1,2*,LI You-tian 1
Abstract:In hydroponics test the flue cured tobacco dry matter accumulation and potassium content and accumulation in root, stem and leaf were studied when changing the rations of NH + 4/NO - 3 and nitrogen concentration in nutrient solution after topping.The results showed that flue cured tobacco dry matter accumulation raised to the maximum when the ration of NH + 4/NO - 3 was 0∶10 and nitrogen concentration was 140 mg/L. Potassium in leaf and stem raised to the maximum when the ration of NH + 4/NO - 3 was 0∶10 and nitrogen concentration was 35 mg/L.Potassium accumulation in leaf and stem raised to the maximum when the ration of NH + 4/NO - 3 was 0∶10 and nitrogen concentration was 140 mg/L. Potassium content and accumulation in root raised to the maximum when the ration of NH + 4/NO - 3 was 5∶5 and nitrogen concentration was 70m g/L. In different treatments, change of potassium content and accumulation in different parts of tobacco was according to the following sequence∶leaf>stem>root.
Keywords:Flue-cured tobacco  Nitrogen  NH_4~+-N  NO_3~--N  Potassium
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