| 氮肥对乌拉尔甘草生长及有效成分的影响 |
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| 引用本文： | 张燕,王继永,刘勇,王文全.氮肥对乌拉尔甘草生长及有效成分的影响[J].北京林业大学学报,2005,27(3):57-60. |
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| 作者姓名： | 张燕 王继永 刘勇 王文全 |
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| 作者单位： | 1.1 中国科学院沈阳应用生态研究所大青沟沙地生态实验站 2 中国科学院研究生院 |
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| 基金项目： | 国家自然科学基金
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高等学校博士学科点专项科研项目 |
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| 摘 要： | 2002年作者在盆栽条件下研究了氮素营养对1、2年生乌拉尔甘草产量和质量的影响．结果表明,在氮素梯度试验中，当施氮量到达0.15 g/L之前，氮的增施对甘草主要生长、生理、产量和药效等指标均有良好的促进作用，以0.10～0.15 g/L为最佳，而超过0.15 g/L时，甘草开始受到抑制，各指标均有不同程度的下降．甘草净光合速率与生物量、产量呈显著线性正相关．提高施氮水平对甘草酸含量有不同程度的促进作用．
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| 关 键 词： | 乌拉尔甘草 施肥 氮素营养 植物产量 甘草酸 |
| 文章编号： | 1000-1522(2005)03-0057-04 |
| 收稿时间： | 1900-01-01 |
Nitrogen nutrition in Glycyrrhiza uralensis Fisch. |
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| ZHANG Yan,WANG Ji-yong,LIU Yong,WANG Wen-quan.Nitrogen nutrition in Glycyrrhiza uralensis Fisch.[J].Journal of Beijing Forestry University,2005,27(3):57-60. |
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| Authors: | ZHANG Yan WANG Ji-yong LIU Yong WANG Wen-quan |
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| Institution: | 1 College of Resources and Environment, Beijing Forestry University, 100083, P.R.China; 2 College of Traditional Chinese Medicine, Beijing University of Traditional Chinese Medicine, Beijing, 100102, P.R.China. |
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| Abstract: | The effect of different nitrogen levels on G.uralensis was studied in 2002. The results show that before the dosage of nitrogen fertilization reaches 0 15 g/L, an increasing dosage of nitrogen fertilization will accelerate growth and physiological indicators. When the dosage is 0 15 g/L, almost all indicators reach their highest levels; when the dosage exceeds 0 15 g/L, the values of all the indicators begin to decline to different degrees. The net photosynthetic rate of \%G.uralensis\% has a significantly positive linear relation with biomass and yield. The nitrogen, phosphorus and potassium contents in \%G. uralensis\% leaves also have linear relations with height, root diameter, single plant weight and yield of \%G.uralensis\%. Increasing nitrogen levels has no obvious effect on chlorophyll fluorescence parameters, but can improve glycyrrhizinic acid content. |
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| Keywords: | Glycyrrhiza uralensis fertilize nitrogen plant yield glycyrrhizinic acid |
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