3. the issue of soil pH value to acidic soil that is measured is lower than 4.0, so the soil sour or acidic soils, soil, so it is classified acid type, but with a different meaning from the soil by acid or acid soil in General, plain. Reasons caused In areas where there is a sludge from sea water or brackish water for long periods, which are flooding the area and caused the accumulation of mineral soil sediment layers in the pineal Wright more. Later, the change of the Earth surface landform To shorten your fall coastal soil. Floods do not reach the mineral baths of Wright to gather with the oxygen in the air and water, iron sulfate and sulfuric acid is present in soil bacteria.
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