title: [Studies of soil embryological characteristics of the Salvia miltiorrhiza of Zhongjiang].
abstract: OBJECTIVE
  To study the characteristics of the SiO2/R2O3 in non-zonal purple soil in the light of the difference between the high yield and low yield of Salvia miltiorrhiza.
  
  
  METHODS
  Both the high yield and low yield drugs developed from the same parental material (k1cy) were chosen in the ecology area in Zhongjiang county, Sichuan Province. By using the air-dried drugs as sample, quadrat sampling method was used to calculat the production. Gravimetric method, volumetric method, and colorimetric method and neutralization titration were used to measure the content of adhesive particle colloids element in the soil. And T-test was used for the variable-difference analysis.
  
  
  RESULTS
  There was a sharp contrast between the production of high yield and low yield drugs (P < 0.001). The characteristic value of the high yield soil embryology was much higher than that of the low yield soil.
  
  
  CONCLUSIONS
  The characteristic value of the purple soil embryology is one of the important factors of the soil adaptability of the drug and its quality. The weathering degree of the soil is closely related to the yield of the drug.
authors.affiliation: Research Institute of Chinese Herbal Medicine in Southwest Jiao Tong University, Emeishan 614202, China. zxg-cse@163.com
authors.forename: Xing-guo
authors.initials: XG
authors.lastname: Zhang
authors.forename: Fang-xu
authors.initials: FX
authors.lastname: Cheng
authors.forename: Jun-yan
authors.initials: JY
authors.lastname: He
authors.forename: Jian-hua
authors.initials: JH
authors.lastname: Li
mesh_terms: D000535:Aluminum / Q000032:analysis*; D000537:Aluminum Oxide / Q000032:analysis*; D017753:Ecosystem; D005290:Ferric Compounds / Q000032:analysis; D007501:Iron / Q000032:analysis; D010946:Plants, Medicinal / Q000254:growth & development; D027561:Salvia miltiorrhiza / Q000254:growth & development*; D012825:Silicon / Q000032:analysis; D012822:Silicon Dioxide / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D014025:Titanium / Q000032:analysis
chemical_list: D005290:Ferric Compounds; D012987:Soil; C009495:titanium dioxide; C000499:ferric oxide; D012822:Silicon Dioxide; D000535:Aluminum; D014025:Titanium; D007501:Iron; D000537:Aluminum Oxide; D012825:Silicon