The invention discloses a planting method capable of improving sugariness of Kupla sweet corn. The planting method comprises the following steps of selecting land which is flat in
terrain, fertile in earthiness, good in permeability and good in
water retention, and has
irrigation and drainage conditions; selecting planting geographic climatic conditions, wherein the mean
air temperature throughout the year is 17-22 DEG C, the average temperature from June to September is between 19-23 DEG C, the mean
air temperature of January is 8 DEG C or above, the
frost-free period lasts for 250 days or above, the annual
sunshine duration is 1800-2100 hours, the annual rainfall is 1000-1800mm, and the
relative humidity of air is 75-90%; and performing
soil preparation, classifying seeds, performing
sowing, performing field management, and performing harvesting so as to obtain the Kupla sweet corn. According to the planting method disclosed by the invention, an appropriate compounding ratio of a
fertilizer is adopted, so that nutrients required for the growth of the sweet corn are met; a classified
sowing manner is adopted, so that the sweet corn is harvested by stages, and the harvested sweet corn appears on the market in a balanced manner; promotion of the growth of the sweet corn is facilitated, and resource waste is reduced; the sugariness of the sweet corn is improved; and corn stalk borer is controlled through
carbofuran granules or BT
emulsion, diseases and
insect pests can be well controlled, and the growth of the sweet corn is not influenced neither.