Soil pH is an indication of the alkalinity or acidity of soil.
It is based on the measurement of pH, which is based in turn on the activity of hydrogen ions (H+) in a water or salt solution..
For more information about the topic Soil pH, read the full article at Wikipedia.org, or see the following related articles:
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PH pH is a measure of the activity of hydrogen ions (H+) in a solution and, therefore, its acidity or alkalinity. Aqueous solutions with pH values lower ... >
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