Cultivation method for horticultural plants

The invention discloses a cultivation method for horticultural plants. The method comprises the following steps that 1, healthy horticultural plant stalks are selected, the stalks are inserted into a rooting solution to be soaked for 10-12 h; 2, holes are dug inside a greenhouse, fungicide is adopted for treatment, and a layer of fertilizer is attached to the inner walls of the holes; 3, the stalks obtained in the step 1 are put into the holes in a cuttage mode, the bottoms of the stalks are surrounded by fertilizer, earthing is performed, clean water is irrigated every day, and root hair grows to be robust after 20-25 days; the rooting solution is prepared from naphthylacetic acid, indoleacetic acid, gibberellin, monopotassium phosphate, calcium phosphate, calcium chloride, urea, microelements and water; the fungicide includes one of 120-fold carbendazim, 1,200-fold chlorothalonil and an ethanol solution with the concentration of 70-75%; the fertilizer is prepared from a particle controlled release agent, pe