The soil acidity or soil plain acid. The soil acidity or soil freckles is very old soils which have been found by the General. Acid soils occur on the tropical rain The soil through leaching or soil that has been exploited for a long time, which makes the soil with low fertility because of the clay and organic day June is to wash down with a fertile soil generally low until very low. It also has the ability to mop up the water. The process occurs the soil sour arrangement The process occurs the soil sour arrangement contains important process is the process the object or acidic soil, stem, called the process of creating the geological soil (geogenetic process), and process the soil sour or referred to the process of creating the soil potphiwitya (pedogenetic process), which caused the object origin, the soil sour will relate to the occurrence of compounds, pyrolysis Wright (pyrite) or sulfides compounds but the process caused the soil sour arrangement involves oxidizing substances and compounds, pyrolysis of Wright, sulfuric acid.
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