Soil reaction has a negative effect on organic carbon catchment in the garden offer Ms.Srifa vajira this is consistent with the Board of education [43] Kemmitt, and noticed that when I add the acid in the soil (soil reaction at least) will affect the inhibition of soil microbes work and reduce the digestion of the organic carbon in the soil, the organic carbon in the catchment have more [28] and the Earth with a neutral or mild alkaline soil reaction is digestion rate of อินทรีย objects in the Earth faster than Earth with soil reaction is acid or alkaline held [29]
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