The invention discloses a high-yield cultivation method of potatoes, and relates to the technical field of vegetable planting. The cultivation method comprises the following steps: selecting a sandy land plot which has flat
terrain, and loose and fertile soil and is not used for planting solanaceous plants in the past three years, applying a potato base
fertilizer, carrying out deep ploughing andcareful cultivation, and carrying out ridging and furrowing, wherein the width of the
ridge and furrow surface is 80-90 cm, and the
ridge height is 20-25 cm;
cutting seed potatoes into blocks according to
bud eyes, carrying out seed soaking by using a
mixed solution containing 0.5-1 ppm gibberellins and 0.1-0.4 ppm
salicylic acid for 10-20 min,
fishing out the seed potato blocks, carrying out draining, placing the seed potato blocks on wet
river sand by layering, scattering
river sand between every two
layers, piling the seed potato blocks for 3-5
layers, covering the upper layer with
straw, and putting the budded seed potato blocks under the
sunlight for solarization for 2-3 days; carrying out hole
sowing,
sowing double rows of seed potato blocks in each
ridge, keeping the row spacing of20-25 cm and the
plant spacing of 23-28 cm, applying a hole
fertilizer in planting holes and carrying out covering with soil before planting; carrying out daily management including intertillage, topdressing, and prevention and control of diseases and
insect pests; and carrying out timely harvesting after the potatoes are mature. According to the cultivation method provided by the invention, soilpreparation,
sowing, daily management and the like are optimized according to the growth characteristics and
nutrition requirements of the potatoes, so that the growth of plants is promoted, and the yield and the quality of the potatoes are improved.