Effect of potassium fertilizer on the growth of watermelon

Potassium can enhance plant resistance, improve plant nutrient transport capacity, promote plant growth, improve fruit quality, increase potassium fertilizer to increase fruit sugar content, improve pulp coloring, and improve plant disease resistance. At the same time, increasing the amount of potassium fertilizer can also increase the absorption and utilization of nitrogen and phosphorus by watermelon. For example, in the case of a certain amount of nitrogen application, the application of potassium fertilizer will increase the yield of watermelon, but under the condition of a certain amount of potassium application, excessive application of nitrogen fertilizer will reduce the yield. When increasing the amount of nitrogen fertilizer in production, the amount of potash fertilizer should be increased accordingly in order to have a good effect of increasing production.