Cuttage seedling culture method of liquidambar styraciflua

The invention belongs to the technical field of seedling breeding, and relates to a cuttage seedling culture method of liquidambar styraciflua. According to the method, parent semi-lignified current-year branches are selected to be sheared into cuttage branches with the length being 8 to 10cm, 2 to 3 buds and 2 to 4 leaves are reserved, the upper ends of the cuttage branches are flatly sheared, the shearing position is 1 to 1.5cm from the upper part buds, the lower part is sheared in the inclined direction, the shearing openings are flat and smooth, the cuttage branches are placed into a nutrition solution to be soaked for 1 to 2 hours and are then inserted into a mixed substrate of perlite and turfy soil subjected to sterilization treatment, and the bare-root transplanting can be carried out after the culture for 40 to 45 days in the mixed substrate of the perlite and the turfy soil. The cuttage substrate adopts the mixed substrate formed by the perlite and the turfy soil according to the weight ratio being 5:1, the ventilation performance and the moisture absorption performance are good, the cost is low, the conditions are favorable for root system growth, and the rooting rate is high; a soaking process is adopted, and cutting slips are soaked for 1 to 2 hours in the nutrition solution, so that the roots of the cutting slips have the sufficient time to absorb nutrients in the nutrition solution, then, the cutting slips are subjected to cuttage into the prepared mixed substrate, root nodules are formed after 5 to 7 days, the rooting is realized after 13 to 15 days, the bare-root transplanting can be carried out after 40 to 45 days, the root system is developed, the survival rate is high, and can reach more than 95 percent, and the seedling forming period is short.