title: [Effects of zinc manganese and boron on artemisinin and yields of Artemisia annua].
abstract: OBJECTIVE
  To explore the effects of micro-elements fertilizers on the quality and yields of Artemisia annua.
  
  
  METHODS
  Field experiments were conducted according to the method of random blocks design. After the harvest the yield was calculated and the content of artemisinin was determined.
  
  
  RESULTS
  By applying 0.1%-0.5% Mn and 0.1%-0.5% Zn the dried leaf output and artemisinin content were increased.
  
  
  CONCLUSIONS
  The suitable ranges of Mn and Zn can increased the yield and artemisinin content of A. annua.
authors.affiliation: Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China.
authors.forename: Yekuan
authors.initials: Y
authors.lastname: Wu
authors.forename: Longyun
authors.initials: L
authors.lastname: Li
authors.forename: Ma
authors.initials: M
authors.lastname: Peng
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Wu
authors.forename: Fangyi
authors.initials: F
authors.lastname: Li
authors.forename: Zhixue
authors.initials: Z
authors.lastname: Wang
mesh_terms: D031172:Artemisia annua / Q000187:drug effects* / Q000378:metabolism*; D037621:Artemisinins / Q000378:metabolism*; D001895:Boron / Q000494:pharmacology*; D008345:Manganese / Q000494:pharmacology*; D015032:Zinc / Q000494:pharmacology*
chemical_list: D037621:Artemisinins; D008345:Manganese; C031327:artemisinin; D015032:Zinc; D001895:Boron