What effect does applying potassium fertilizer have on the growth of watermelon?

(Agricultural Wealth Network) Potassium can enhance the resistance of the plant, improve the plant's nutrient transport capacity, promote robust plant growth, and improve fruit quality. Increasing the application of potassium fertilizer has a clear effect on raising the sugar content of the fruit, improving the coloring of the flesh, and increasing the plant's disease resistance. At the same time, increasing the amount of potassium fertilizer applied can also increase the watermelon's absorption and utilization rate of nitrogen and phosphorus. For example, when the amount of nitrogen applied is fixed, increasing the application of potassium fertilizer will raise the yield of watermelon; but when the amount of potassium applied is fixed, excessively increasing the application of nitrogen fertilizer will lower the yield. When increasing the amount of nitrogen fertilizer used in production, the amount of potassium fertilizer applied should be raised accordingly to achieve a good yield-increasing effect.