Potato plantation method

The invention discloses a potato plantation method. The potato plantation method comprises following steps of A, carrying out soil preparation, applying decomposed farmyard manure, calcium superphosphate, plant ash and organic trace elements after a deep ploughing process; carrying out fine ploughing and leveling processes; B, carrying out a sowing process, cutting potatoes into cubes, wherein each potato cube at least reserves a middle bud or terminal bud, and the terminal bud is longitudinally cut and equally distributed to 2-4 potato cubes; putting the cut potato cubes on a wet, shady, cool and ventilated place timely for airing, immersing the potato cubes in a sprouting agent after wound healing, and then carrying out the sowing process; C, carrying a topdressing process according to the weight ratio of nitrogen, phosphor and potassium being 5:2:1 in dependence on the soil fertility condition; D, carrying out field management, carrying out shallow irrigation once after potato seedlings come out evenly, ca