Rapid cultivation method for four-season camellia nitidissima bonsai

The invention discloses a rapid cultivation method for a four-season camellia nitidissima bonsai. The rapid cultivation method comprises the following steps: (1) rootstock variety selection; (2) bonsai rootstock transplanting; (3) grafting; (4) management after grafting, wherein a layer of sunshade net is additionally covered after grafting, so the shading degree is 75%; daily management is performed by keeping soil moist and timely removing sprouts; and disease and pest prevention and treatment are performed in 20 to 30 days after grafting is completed by spraying monopotassium phosphate witha mass concentration of 0.2-0.3% once every 10-15 days when grafted seedlings begin to sprout until leaf surfaces are wet, wherein carbendazim with a mass concentration of 0.1% and a pyrethroid pesticide with a mass concentration of 0.1% can be simultaneously and additionally sprayed for disease and pest prevention and treatment when a leaf fertilizer is sprayed until the leaf surfaces are wet. The grafting method provid