中国中药杂志

2008, (15) 1802-1806

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氮、磷、钾对膜荚黄芪生长发育及有效成分的影响
Effects of nitrogen,phosphorus and potassium application on growth and active ingredient of Astragalus membranaceus

王渭玲;王振;徐福利;
WANG Wei-ling1,WANG Zhen 2,3,XU Fu-li 1,2(1.Northwest A & F University,Yangling 712100,China;2.Institute of Soil and Water Conservation of Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China;3.Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

摘要(Abstract):

目的:研究氮、磷、钾及其配比对膜荚黄芪生长发育及有效成分的影响。方法:通过田间试验,采用氮、磷、钾3因素2次D-饱和最优设计,研究氮、磷、钾及其配比对膜荚黄芪生长及有效成分的影响。结果:施肥促进了膜荚黄芪幼苗的生长,从而为生育后期膜荚黄芪根生长、产量形成及有效成分的累积提供充足的营养基础。氮、磷、钾各元素及其配比明显促进了茎叶及根干物质积累,氮、磷、钾对膜荚黄芪干物质累积总量的影响程度依次为氮>钾>磷;对膜荚黄芪茎叶干物质累积量的影响程度依次为氮>磷>钾;对根干物质累积量的影响程度依次为氮>钾>磷。施肥明显提高了膜荚黄芪根产量,氮、磷、钾对根产量影响程度依次为氮>钾>磷。氮、磷、钾各元素及其配比使黄芪多糖、黄芪甲苷含量明显增加,对总黄酮含量影响不明显。氮、磷、钾对黄芪多糖含量影响程度依次为钾>磷>氮;对黄芪甲苷含量的影响程度依次为氮>钾>磷。结论:氮、钾对膜荚黄芪生长发育,产量形成及多糖,黄芪甲苷含量有重要的影响。根类中药材黄芪的栽培过程中应该注重氮、钾肥的施用,并注意氮、磷、钾的配合施用。
Objective:To study the effects of fertilizers with the different proportional of nitrogen,phosphorus and potassium on growth and active ingredient of Astragalus membranaceus.Method:Field experiment was conducted based on the D-saturation optimal design with three factors of nitrogen,phosphorus and potassium.The effects on growth and active ingredient of A.membranaceus were analyzed.Result:Fertilization promoted the seedling growth and provided abundant supply of nutrition for growth of root,yield and accumulation of active ingredient at the later growth stage,and increased the accumulation of dry matter of stem-leaf and root system.The effect of nitrogen,phosphorus and potassium application on the total dry matter accumulation of A.membranaceus was as following:nitrogen>potassium>phosphorus;the effect on the stem-leaf dry matter accumulation was as following:nitrogen>phosphorus> potassium;the effect on the root dry matter accumulation was as following:nitrogen>potassium>phosphorus.Nitrogen,phosphorus and potassium fertilizer increased the root yield of A.membranaceus.Obviously,the effect on the root yield was as following:nitrogen>potassium>phosphorus.The application of different proportional with nitrogen,phosphorus and potassium increased the content of polysaccharide and astragaloside,but had no distinct effect on the content of total flavonoids.The effect on the content of polysaccharide was as following:potassium>phosphorus>nitrogen,but the effect on the content of astragaloside was as following:nitrogen>potassium>phosphorus.Conclusion:Nitrogen and potassium fertilizer application had more important effect on growth,yield and the contents of polysaccharide and astragaloside in A.membranaceus.During medicinal plants cultivation process,it should pay attention to the application of nitrogen fertilizer and potassium fertilizer and make balance application of nitrogen,phosphorus and potassium fertilizer.

关键词(KeyWords): 膜荚黄芪;氮、磷、钾施肥;生长发育;有效成分
Astragalus membranaceus;nitrogen,phosphorus,potassium application;growth and development;active ingredient

Abstract:

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基金项目(Foundation): 国家“十一五”科技支撑计划项目(2007BAD79B06);; 陕西省科技攻关项目(2001K01-G15-03)

作者(Author): 王渭玲;王振;徐福利;
WANG Wei-ling1,WANG Zhen 2,3,XU Fu-li 1,2(1.Northwest A & F University,Yangling 712100,China;2.Institute of Soil and Water Conservation of Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China;3.Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

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