| 施氮量对皖南砂壤土烤烟碳氮代谢动态变化的影响 |
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| 引用本文： | 李 志,史宏志,刘国顺,王道支,祖朝龙,杨永锋.施氮量对皖南砂壤土烤烟碳氮代谢动态变化的影响[J].土壤,2010,42(1):8-13. |
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| 作者姓名： | 李 志 史宏志 刘国顺 王道支 祖朝龙 杨永锋 |
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| 作者单位： | 1. 河南农业大学国家烟草栽培生理生化研究基地,郑州,450002
2. 安徽皖南烟叶公司,安徽宣城,242000 |
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| 基金项目： | 国家烟草专卖局资助项目 |
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| 摘 要： | 选取皖南典型植烟土壤,对不同施氮(N)量烤烟生长发育过程中硝酸还原酶、转化酶活性和碳氮代谢产物含量的变化动态进行了测定分析。结果表明,随施N量的增加,硝酸还原酶活性提高,活性高峰下部叶出现在移栽后40天;中、上部叶出现在移栽后55天,高峰值处理N8(N8kg/667m2)N7(N7kg/667m2)N6(N6kg/667m2)N5(N5kg/667m2)。在烟叶生长发育过程中转化酶活性达到最大值后明显下降。烟株地上部总N累积量、烟碱含量和烟碱累积量不断增加,施N量愈高增加幅度愈大。总糖含量随施N量的增加而减少,上部叶总糖含量的积累水平低于中部叶和下部叶,上部叶中N8处理总糖含量最低。
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| 关 键 词： | 烤烟 砂壤土 碳氮代谢 施氮量 |
Changes of carbon-nitrogen metabolism of flue-cured tobacco with sweet aroma in south Anhui under different fertilization rates |
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| LI Zhi,SHI Hong-zhi,LIU Guo-shun,WANG Dao-zhi,ZU Chao-long,YANG Yong-feng.Changes of carbon-nitrogen metabolism of flue-cured tobacco with sweet aroma in south Anhui under different fertilization rates[J].Soils,2010,42(1):8-13. |
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| Authors: | LI Zhi SHI Hong-zhi LIU Guo-shun WANG Dao-zhi ZU Chao-long YANG Yong-feng |
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| Institution: | LI Zhi1,SHI Hong-zhi1,LIU Guo-shun1,WANG Dao-zhi2,ZU Chao-long2,YANG Yong-feng1 (1 National Tobacco Cultivation , Physiology , Biochemistry Research Center,Henan Agricultural University,Zhengzhou 450002,China,2 South Anhui Tobacco Corporation,Xuancheng,Anhui 242000,China) |
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| Abstract: | Typical tobacco soils in South Anhui were selected to investigate the changes of the activities of some enzymes and product contents of carbon-nitrogen metabolism during the growth of flue-cured tobacco.The results showed that the nitrate reductase activity increased first with the increase of N fertilization rate,but decreased significantly after 40 d of transplant for bottom leaves and 55 d for middle leaves and top leaves.The peak value of nitrate reductase activity was N8(N 8 kg/667m2)>N7(N 7 kg/667m2)>... |
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| Keywords: | Flue-cured tobacco Coarse sandy soil Carbon-nitrogen metabolism N fertilization rate |
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