氮钾配施对桔梗品质的影响  

Effects of Nitrogen Application Combined with Potassium on the Quality of Platycodon grandiflorum(Jacq.)A.DC.

作　　者：张艳玲[1] 杨本凤 孙万慧[1] 尹健[1] 

机构地区：[1]河南信阳农业高等专科学校,河南信阳464000 [2]河南信阳市平桥区农业局,河南信阳464000

出　　处：《安徽农业科学》2011年第6期3253-3254,3257,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究氮钾配施对桔梗品质的影响,为桔梗的栽培提供基础数据。[方法]在大田条件下,采用随机区组设计进行试验。[结果]氮钾配施条件下,在施氮肥0~210 kg/hm2和施钾肥0~315 kg/hm2时,随氮肥和钾肥施用量的增加,桔梗中多糖和总皂苷含量增加。当施用氮肥210 kg/hm2、钾肥315 kg/hm2时,桔梗中多糖、总皂苷含量最高,分别为22.08%、8.73%。[结论]一定水平的氮钾合理配施有利于提高桔梗品质,该研究为桔梗的栽培奠定了基础。[Objective] To study the effects of nitrogen application combined with potassium on quality of Platycocon grandiflorus（Jacq.A.DC.,so as to provide basic data for the cultivation of Platycodon grandiflorum（Jacq.）A.DC.[Method] The field experiment was carried out using randomized block design.[Result] When the application dose of nitrogen and potassium ranged from 0 to 210 kg/hm2,and from 0 to 315 kg/hm2,respectively,the content of polysaccharide and total saponin in Platycodon grandiflorum（Jacq.）A.DC.assumed rise trend with the increase of application amount,and they peak a peak with nitrogen amount of 210 kg/hm2 and potassium amount of 315 kg/hm2,being 22.08% and 8.73%,respectively.[Conclusion] Improving of quality of Platycodon grandiflorum（Jacq.）A.DC.is in relation to a reasonable application amount of nitrogen and potassium combined application,and this study provide basis for the cultivation of Platycodon grandiflorum（Jacq.） A.DC..

关 键 词：桔梗 氮钾配施 品质 

分 类 号：S567[农业科学—中草药栽培]