How to improve soil acidification How to scientifically improve acidified soil

1. Apply lime to adjust acidity and supplement calcium. Applying lime can adjust acidity and supplement calcium, and adjust acid and alkali, which can increase the availability of nutrients. Therefore, adjusting acidity (applying lime) is equivalent to fertilizing. After the autumn harvest, clean up the straw and weeds in the field, spread 100 kilograms of quicklime per mu, plow and spread evenly.

2. Smoking fire dung can serve multiple purposes. Using straw in the field and weeds in the corners of fields to smoke fire dung is also an effective measure to control soil acidification. Fire manure is alkaline and contains a lot of potassium. It has the function of adjusting soil pH and replenishing potassium. The Tujia ancestors relied on the application of fire manure to maintain the acid-base balance of the soil and the balance of potassium elements.

3. Apply organic fertilizer to balance acid and alkali. Organic fertilizer has great buffering properties and can adjust the pH of the soil. Long-term application can balance the acid and alkali and improve soil fertility. Cover cultivation to reduce leaching. In agricultural production, cover cultivation (film mulching and grass mulching) can reduce the erosion of soil by precipitation and reduce the leaching of alkaline salts in the soil.

4. Test the soil formula and fertilize accurately. Carry out soil testing and formula fertilization based on soil and crop needs to reduce the amount of chemical fertilizers and effectively prevent soil acidification. When applying nitrogen fertilizer, choose ammonium bicarbonate. 2.7 kg of ammonium bicarbonate is equivalent to 1 kg of urea.