A study on liquid and Zinc and Selenium accumulation effect of Cordyceps sinensis(Beck.) Sacc.,Cordyceps militari(L.)Link and Agaricus blazei.Through single factor experiment on optimum carbon source,nitrogen source,cultural temperature and pH. Four factors and three levels experiment on optimum C/N. Six factors and two levels experiment on optimum inorganic salt and VB1. The result showed mat the optimum liquid culture conditions of Cordyceps sinensis (Beck.) Sacc. is (g/L): glocuse3.0, refined...