Appropriate fallen leaves and ferrous sulfide can be added to ordinary soil. Ferrous sulfide needs to be added every other period of time. Generally, acidic soil can be obtained in 4-6 months. Acid soil refers to the general term of soil with pH value less than 7, including latosol, lateritic red soil, red soil, yellow soil, etc. How to deal with acidic soil? Acidic soil refers to the pH & lt that lacks alkali metals and alkaline earth metals and adsorbs a large amount of H +; 7. The acidity of soil generally comes from carbonic acid in rainwater, decomposition of chemical fertilizer, microorganisms and plant root metabolites.
Acid soils are widely distributed in tropical and subtropical areas of China, because these areas have the characteristics of high temperature, rainy, humid and hot in the same season, the weathering and pedogenesis of soil are very strong, and the cycle of biological material is also very rapid. （SuanXingTuRangZenMeLong）