Fertilizing potatoes with specific amounts of nitrogen, phosphate, and potassium can increase production, starch content, and quality. In Lishui, Zhejiang, adding 120 kg/hm2 of nitrogen, 80 kg/hm2 of phosphate, and 170 kg/hm2 of potassium improved potato growth. Varying the amounts of phosphate and potassium affected production levels, with the best results seen when both were increased together. The study found that a combination of N 120 kg/hm2, P2O5 80 kg/hm2, and K2O 170 kg/hm2 gave the highest yields.