title: [Characteristics of soil microbial variation during crop rotation period at cultivation area of Salvia miltiorrhiza in Zhongjiang of Sichuan province].
abstract: OBJECTIVE
  To study the characteristics of soil microbial variation during Salvia miltiorrhiza crop rotation.
  
  
  METHODS
  the conventional cultivating microbial method was used to study the microbial number and communities structure and soil microbial biomass phosphorus (SMBP) was determined by chloroform vapor extraction method. The data was then analyzed by SPSS software.
  
  
  RESULTS
  With the increase of the crop rotation years, the numbers of bacteria and actinomycetes in soil also, but the fungi and SMBP decreased.
  
  
  CONCLUSIONS
  Microbial mechanism of crop rotation of the planting S. miltiorrhiza is the regulation of microbial number and bacteria physiological communities, the process rebuilds the soil ecological system balance. Microbial communities in soil need at lest 2 years to get to restore, after planting S. miltiorrhiza, which consisting with traditional planting experience.
authors.affiliation: Key Laboratory of Ministry of Education Chinese Medicinal Standardization, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China. linguibing897@qq.com
authors.forename: Guibing
authors.initials: G
authors.lastname: Lin
authors.forename: Deguang
authors.initials: D
authors.lastname: Wan
authors.forename: Xinjie
authors.initials: X
authors.lastname: Yang
authors.forename: Kui
authors.initials: K
authors.lastname: Zhao
authors.forename: Yuxia
authors.initials: Y
authors.lastname: Zhu
authors.forename: Zhuyun
authors.initials: Z
authors.lastname: Yan
mesh_terms: D039903:Actinobacteria / Q000302:isolation & purification; D001419:Bacteria / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000254:growth & development* / Q000378:metabolism / Q000382:microbiology*; D027561:Salvia miltiorrhiza / Q000254:growth & development* / Q000378:metabolism / Q000382:microbiology*; D012988:Soil Microbiology