1, which can improve the pH value of soil: calcium hydroxide is generated when quicklime absorbs water, which is an alkaline substance and can neutralize the acidity of soil. Spreading quicklime can increase the content of calcium ions in soil, which is a good cement for soil, and can form soil aggregates, loosen soil and reduce soil hardening.
2. Increase the activity of microorganisms in the soil: the application of quicklime can effectively improve the environmental conditions in the soil, increase the activity of beneficial microorganisms in the soil, and strengthen the decomposition and digestion of beneficial microorganisms, thus improving the nutritional components in the soil, improving the physical and chemical properties of the soil and increasing crop yield.
3. Helpful to the growth of crops: In the current agricultural production, pesticides and fertilizers are used very strongly, and most of these pesticides and fertilizers are acidic, so it is easy to cause soil acidification and very harmful to the growth of crops. Calcium lime is alkaline, which can well neutralize acidity, improve the PH value of soil, and is beneficial to the growth and development of crops.
Matters needing attention in spreading lime
Although the benefits of quicklime are many, the use of quicklime is limited. We must use it appropriately according to our own land conditions. If used rashly, it will not only fail to achieve the expected effect, but will worsen the soil environment.
1, the application of quicklime should be appropriate, and the dosage should be adjusted according to the pH of the soil. Too little sprinkling can't improve the acidity of the soil, and too much sprinkling will make the soil alkaline.
2. Try not to use poor quality quicklime (such as impurities or caking). When using quicklime, sell it now and don't store it for a long time.