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Soil pH

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The Basics of Soil pH

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Farm Basics #1161 Soil pH and Nutrient Availability (Air Date 7-5-2020)

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Adjusting Soil pH?

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How To Adjust Soil pH

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Simple Soil pH Testing

Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. pH is defined as the negative logarithm (base 10) of the activity of hydronium ions in a solution. In soils, it is measured in a slurry of soil mixed with water, and normally falls between 3 and 10, with 7 being neutral. Acid soils have a pH below 7 and alkaline soils have a pH above 7. Ultra-acidic soils and very strongly alkaline soils are rare.