The functions of potassium fertilizer:

1. Promoting the activation of enzymes is very important for plants. Potassium can ensure the normal growth and development of crops and increase the protein content. , and can promote the production of sugar and starch, promote protein synthesis, and promote cellulose synthesis.

2. Potassium can promote the transportation of photosynthesis. The dry matter potassium fertilizer produced by the leaves can promote its transportation and increase yield. The other potassium fertilizer can regulate the movement of stomata, which is to say, it is beneficial to crop economy. When water is in drought, increasing the amount of potassium fertilizer applied can improve the drought resistance of crops. In addition, more than 60 enzymes in plants require the activation of potassium.

3. Potassium fertilizer can synergize with iron fertilizer. That is, when plants show symptoms of iron deficiency, adding a portion of potassium fertilizer can promote the absorption of potassium fertilizer.

4. Potassium can regulate the concentration of cell fluid and the permeability of cell walls, and can improve the ability of crops to resist pests, diseases, drought and cold. It promotes early root nodulation of leguminous crops and improves nitrogen fixation ability. Potassium can enhance the disease resistance, cold resistance, drought resistance, lodging resistance and salt resistance of crops, improve the quality of crop products and increase the protein content of food crops.

5. Potassium fertilizer can make the stems of trees strong, improve their resistance to diseases and insects, cold, drought and lodging, promote the development of roots, enlarge bulbs, and promote the enlargement of fruits with good color.