Potatoes are mostly planted in spring, when it is cooler and suitable for the full expansion of roots. Before sowing, it should be preserved and wintered, and the temperature should be controlled at 0-7℃.
When sowing, it needs to be cut according to the position of the bud eye, and then covered with deep soil, and enough base fertilizer can be added for maintenance. In addition, some fertilizers can be added frequently. Potato high-yield planting technology sowing: when the soil temperature of 10cm steadily passes through 10℃ for three consecutive days, sowing can be carried out; Seed per mu120 ~150kg; According to the variety and soil fertility, reasonable close planting; Early-maturing varieties should be planted closely and late-maturing varieties should be planted thinly.
Fertilization: according to the soil fertility, combined with spring ploughing, apply 2000 ~ 4000 kg/mu of decomposed farmyard manure; Pig manure is the best, followed by cow dung; Apply 30 ~ 50 kg of chemical fertilizer, in which the ratio of urea, diammonium phosphate and potassium sulfate is 3.4: 1:3, and potassium chloride is forbidden; According to the situation of calcium and magnesium elements in soil around the country, more calcium and magnesium fertilizers can be scientifically applied to the seriously lacking plots.