title: [Relation between soil nutrient of artificially cultivated area and rhizome quality of Paris polyphylla var. yunnanensis].
abstract: OBJECTIVE
  To explore the relation between the quality of the Herb-Paris and their cultivation of soil nutritional status.
  
  
  METHODS
  The soil nutrient status (0 - 30 cm) of Paris polyphylla var. yunnanensis, artificially cultivated areas were determined in 2009 and their rhizome qualities harvested in 2010 were evaluated respectively. Determination of 0 - 30cm depth soil ingredients status with soil conventional five nutritional analysis method of 29 artificial cultivation area, 9 Prefectures of Yunnan Province.
  
  
  RESULTS
  Soil nutrient has effect on quality of Herb-Paris medicinal ingredients.
  
  
  CONCLUSIONS
  The multiple linear stepwise regression analysis reveals that among a certain range, the steroidal saponin VII content is positively correlated with the content of soil organic matter and pH. Steroidal saponin H content is positively correlated with the content of soil organic matter, available P and pH. Steroidal saponin I is positively correlated with the content of available K, but negatively correlated with the content of available Herb-Paris, and steroidal saponin II is positively correlated with the content of soil organic matter and available K.
authors.affiliation: College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China. yyh831994@yahoo.com.cn
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Yang
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Dai
authors.forename: Kun-Hong
authors.initials: KH
authors.lastname: He
authors.forename: Jian-Rong
authors.initials: JR
authors.lastname: Wei
authors.forename: Ting-Zhou
authors.initials: TZ
authors.lastname: Zhao
authors.forename: Bao
authors.initials: B
authors.lastname: Su
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Wang
mesh_terms: D000383:Agriculture / Q000379:methods; D002681:China; D002851:Chromatography, High Pressure Liquid; D005308:Fertilizers; D006863:Hydrogen-Ion Concentration; D019668:Liliaceae / Q000737:chemistry* / Q000254:growth & development; D009584:Nitrogen; D010758:Phosphorus; D011188:Potassium; D011786:Quality Control; D012044:Regression Analysis; D027343:Rhizome / Q000737:chemistry* / Q000254:growth & development; D012503:Saponins / Q000032:analysis*; D012987:Soil / Q000032:analysis* / Q000737:chemistry
chemical_list: D005308:Fertilizers; D012503:Saponins; D012987:Soil; D010758:Phosphorus; D009584:Nitrogen; D011188:Potassium