Soil acidification is very harmful to crops. How does soil become acidified? How to improve acidified soil?

I only knew that soil salinization was harmful, but I didn’t expect that soil acidification was also bad. What are the effects of soil acidification? What causes soil acidification? How to improve alkaline soil layer? In recent years, soil acidification has become more and more serious. We know that alkaline soil is not good for growing crops, and acidic soil is not good either. The growth and development of food crops is most suitable for neutral soil and slightly acidic soil, while acidic soil is more harmful. First, after soil acidification, the effectiveness of chemical fertilizers is greatly reduced.

The nutrients in the applied chemical fertilizers cannot be digested and absorbed by the soil, and therefore cannot be absorbed and used by crops. Severe alkalization causes phosphorus deficiency even after phosphorus is applied, and potassium remains low even after potassium is applied. It also reduces the effectiveness of chemical components such as calcium and magnesium and nutrients such as boron and molybdenum. The nutrients in the fertilizer cannot be absorbed and used, and eventually there seems to be a lack of fertilizer after fertilization. It is like not fertilizing, and the growth of crops cannot be promoted. Second, after the soil acidifies, harmful elements such as manganese ions and aluminum ions in the soil become active, poisoning the roots and stems of crops and killing the plants. Third, under acidic conditions, the number of pathogenic bacteria and other microorganisms in the soil decreases, and harmful bacteria increase, thereby further aggravating food crop diseases. Wrong irrigation methods can also cause alkalization of the soil environment. Many alkali ions are contained in the soil due to unreasonable flooding or continuous heavy rains. As a result, the soil and water in the fields flow frequently, and nutrients will also be lost. outflow. Of course, when it comes to how to solve alkalization,

In our village, everyone uses agricultural fertilizers and just uses a jack on one acre of land. In the future, we will carry out deep plowing and careful cultivation, so that we can fill in the gaps in the soil. Elements, after all, the nutrients contained in organic fertilizers are very comprehensive. Of course, everyone will still use lime powder. After all, it is acidic. The amount used per acre of land will be determined according to the pH value, usually 50-100kg, so that it can have a buffering effect on the pH value. In order for the soil to be used sustainably, it is also necessary to develop reasonable planting and irrigation techniques, so that the soil can have a higher fertilizer efficiency.