High-yield potato cultivating method

The invention discloses a high-yield potato cultivating method, and belongs to the technical field of potato planting. For solving the technical problem, a cultivating method for increasing the yield of potatoes by prolonging the growth period of the potatoes is provided. The cultivating method is applicable to high-yield cultivation of the potatoes in Yuncheng and other regions which have semi-humid climates and are mostly arid in spring; early breeding, early planting, heat preservation and water retention are keys of the high-yield potato cultivating method; and in the high-yield potato cultivating method, the sowing time is advanced to 4-6 days before the beginning of spring, seed potatoes bred in advance are sown in greenhouse, and the growing conditions and the growing time of the potatoes are controlled so as to obtain high yield.