| 氮素在土壤中的转化及其对烤烟上部叶烟碱含量的影响 |
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| 引用本文： | 刘卫群,郭群召,张福锁,晁逢春. 氮素在土壤中的转化及其对烤烟上部叶烟碱含量的影响[J]. 烟草科技, 2004, 0(5): 36-39 |
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| 作者姓名： | 刘卫群 郭群召 张福锁 晁逢春 |
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| 作者单位： | 1. 河南农业大学农学院,郑州市,文化路95号,450002
2. 中国农业大学植物营养系,北京市海淀区圆明园西路2号,100094 |
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| 基金项目： | 国家烟草专卖局"平衡施肥技术试验与推广"项目(110200001011A)的一部分。 |
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| 摘 要： | 研究了烤烟生育期内植烟土壤中的氮素转化、供氮状况以及氮素对烤烟上部叶烟碱含量的影响。结果表明:施用无机氮肥可大幅度提高0～20cm深的土壤中的无机氮浓度,但维持时间较短;20～40cm深的土壤中无机氮的浓度受氮肥的影响较小;后期土壤供氮较多时易导致烤烟上部叶的烟碱含量过高。
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| 关 键 词： | 土壤 氮素 上部叶 烟碱 |
| 文章编号： | 1002-0861(2004)05-0036-04 |
| 修稿时间： | 2003-12-19 |
Nitrogen Transformation in Soil and its Effects on Nicotine Content of Upper Flue-cured Tobacco Leaves |
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| LIU WEI-QUN. Nitrogen Transformation in Soil and its Effects on Nicotine Content of Upper Flue-cured Tobacco Leaves[J]. Tobacco Science & Technology, 2004, 0(5): 36-39 |
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| Authors: | LIU WEI-QUN |
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| Abstract: | The transformation and supply levels of nitrogen in tobacco-growing soil at different growth and development stage of flue-cured tobacco and its effects on the nicotine contents of upper leaves were studied. The results showed that the inorganic nitrogen content in soil layer depth of 0-20cm raised sharply but only for a short time by inorganic nitrogen fertilizer application; the inorganic nitrogen content in the layer depth of 20-40cm was affected slightly by nitrogen application; oversupply of nitrogen at latter growing stage led to excessive nicotine content in (upper) leaves. |
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| Keywords: | Soil Nitrogen supply Upper leaves Nicotine |
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