title: [Effect of Crop Rotation and Biological Manure on Quality and Yield of "Chuju" Chrysanthemum morifolium and Continuous Cropping Soil Enzyme Activities].
abstract: OBJECTIVE
  To investigate the effects of chrysanthemum-wheat rotation system and biological manure on continuous cropping soil enzyme activities and quality and yield of Chrysanthemum morifolium.
  
  
  METHODS
  Field experiments were conducted at the research base of Anhui Jutai Chuju Chrysanthemum morifolium Herbal Technology Co. , Ltd. ,in Shiji Town, Nanqiao Country, Anhui Province. Samples were collected from treatments under chrysanthemum-wheat rotation system receiving bio-organic manure application of 200 kg/667 m2, conventional chrysanthemum-wheat rotation system and chrysanthemum continuous cropping system.
  
  
  RESULTS
  Chrysanthemum-wheat rotation system and biological manure obviously influenced the quality and yield of Chrysanthemum morifolium and continuous cropping soil enzyme activities. Compared with chrysanthemum continuous cropping system, total flavonoids, chlorogenic acid, soluble sugar and free amino acid contents, quantitative of ray floret, inflorescence diameter, diameter of tubular floret, number of branch, number of flower and yield of Chrysanthemum morifolium and the activities of urease, acid phosphatase, invertase and protease in soil were increased to 42.59 mg/g, 2.52 mg/g, 4.04 mg/g, 73.33 mg/100 g, 179.56, 5.57 cm, 1.43 cm, 36.10, 330.00 and 400.09 kg/667 m2, respectively, while hydrogen peroxidase of soil under chrysanthemum-wheat rotation system was decreased.
  
  
  CONCLUSIONS
  Bio-organic manure application of 200 kg/667 m2 is benefit to soil environment establishment of chrysanthemum-wheat rotation system and enhancement of quality and yield of Chrysanthemum morifolium while reducing the obstacles of continuous cropping.
authors.forename: Xin
authors.initials: X
authors.lastname: Xiao
authors.forename: Wei
authors.initials: W
authors.lastname: Zhu
authors.forename: Chao
authors.initials: C
authors.lastname: Du
authors.forename: Ya-dong
authors.initials: YD
authors.lastname: Shi
authors.forename: Jian-fei
authors.initials: JF
authors.lastname: Wang
mesh_terms: D000383:Agriculture / Q000379:methods*; D031202:Chrysanthemum / Q000254:growth & development*; D004798:Enzymes / Q000737:chemistry; D008372:Manure; D010946:Plants, Medicinal / Q000254:growth & development*; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology; D014908:Triticum
chemical_list: D004798:Enzymes; D008372:Manure; D012987:Soil