title: [Research on abatement measures of allelopathic autotoxicity of Rehmannia glutinosa].
abstract: OBJECTIVE
  To explore effects on allelopathic autotoxicity of Rehmannia glutinosa of different abatement measures.
  
  
  METHODS
  The experiments for abating allelopathic effects of R. glutinosa were designed with the reducing rate as a indication, three measures of the treating soil with lime nitrogen, and water washing were employed, R. glutinosa- Achyranthes bidentata rotation system and using Achyranthes bidentata as green manure, and seedling transplant were also studied for the abatement effect.
  
  
  RESULTS
  Effect of seedling transplant was the best, reducing rate of transplant and bare root transplant on the 20th day after emergence was 76.80%, 71.70%, respectively. The reducing rate of the treating soil with microorganism reached 54.25%. The effects of water washing and R. glutinosa-A. bidentata rotation system and using A. bidentata as green manure were not satisfied. Especially only using A. bidentata as green manure without rotation system worsened the allelopathic effects of R. glutinosa.
  
  
  CONCLUSIONS
  All measures can abate allelopathic effects of R. glutinosa to some extent except only using A. bidentata as green manure.
authors: Department of Chinese Medicinal Material, Henan Agricultural University, Zhengzhou 450002, China. juanli2003@126.com
authors: Juan
authors: J
authors: Li
authors: Jian
authors: J
authors: Huang
authors: Zhongyi
authors: Z
authors: Zhang
authors: Miaomiao
authors: M
authors: Niu
authors: Huamin
authors: H
authors: Fan
authors: Haiyan
authors: H
authors: He