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Reference Terms
from Wikipedia, the free encyclopedia

Soil pH

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.

Note:   The above text is excerpted from the Wikipedia article "Soil pH", which has been released under the GNU Free Documentation License.
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February 24, 2017

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updated 12:56 pm ET