Method for promoting early flowering of wuta-cai

The invention discloses a method for promoting early flowering of wuta-cai, and relates to the field of vegetable chemical control. The method includes the following steps that 1, the surfaces of wuta-cai seeds are disinfected with 20% NaClO; 2, the wuta-cai seeds with the disinfected surfaces are put into mixed liquor of sterile water and brassinolide, a mixture is obtained, and the concentrationof brassinolide is 30 mg/L; 3, the obtained mixture in the second step stands for five days for vernalization, wherein standing temperature is 4 DEG C; 4, the wuta-cai seeds in the mixture treated inthe second step are taken out and then sown in a nutrition pot, the growth environment is that day/night temperature is (25+/-1)/(18+/-1) DEG C, photosynthetically active radiation is 300-500 micromoles.m-2.s-1, and relative humidity is 60-70%; 5, when seedlings each grow to have 4-5 true leaves, mixed liquor of brassinolide with the concentration of 50 mg/L and gibberellin with the concentrationof 900 mg/L starts to be s