Organic matter in nutrient soil produces acid during decomposition, which can cause the soil to become acidic. Excess aluminum, manganese and other trace elements in acidic soil can have a toxic effect on plants, affecting their normal growth. Excessive hydrogen ions in acidic soil can adversely affect the survival and reproduction of microorganisms.

For better plant growth, you can regulate the pH of the soil by adding alkaline substances such as lime powder. Pay attention to control the amount of fertilizer to avoid too much fertilizer on the soil's pH. Pay attention to regular loosening of the soil to increase soil aeration and ensure that the soil is loose.