A method for solving the development of 'hanbao' flowers in soilless culture of cut roses

technology and discloses a method for addressing the issue of "hanbao" in cut rose cultivation using substrates. The method includes controlling irrigation and fertilization, managing environmental temperature, and regulating the number of cut rose flower branches. The irrigation and fertilization control involves the following steps: starting from early October of the current year, adjusting the potassium ion concentration in the irrigation and fertilization solution to 1.6-1.8 millimoles per liter, ensuring the accumulated potassium ion concentration in the substrate is below 2.7 millimoles per liter, from late March of the following year, adjusting the potassium ion concentration in the irrigation and fertilization solution to within 4.2 millimoles per liter and keeping the accumulated potassium ion concentration in the substrate below 5.0 millimoles per liter. The use of this technical solution effectively addresses the severe issue of "hanbao" in cut roses during the winter and spring seasons, promotes normal flower blooming, reduces production costs, and enhances economic benefits.