Methods for promoting differentiation of male and female flowers of cryptomeria fortunei

The invention discloses methods for promoting differentiation of male and female flowers of cryptomeria fortunei, and relates to the technical field of forest flower promotion and control. The method for promoting the differentiation of the male and female flowers of cryptomeria fortunei comprises a method for promoting the differentiation of the female flowers of the cryptomeria fortunei, a method for promoting the differentiation of the male flowers of the cryptomeria fortunei and a liquid preparation method, the method for promoting the differentiation of the female flowers of the cryptomeria fortunei comprises the following steps that (1), treatment is carried out for three times in August every year and once in the first ten days, once in the middle ten days and once in the last ten days; (2) hormone type is characterized by compounding gibberellin (GA3, 0.1 g/L) and thidiazuron (TDZ, 0.003 g/L); (3) the treatment method is characterized by spraying adult branches and leaves or impregnating branches and