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2. Soil pH - Wikipedia

   en.wikipedia.org/wiki/Soil_pH

   Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics. [1] pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+.

3. pH meter - Wikipedia

   en.wikipedia.org/wiki/PH_meter

   A simple pH meter Soil pH meter. In general there are three major categories of pH meters. Benchtop pH meters are often used in laboratories and are used to measure samples which are brought to the pH meter for analysis. Portable, or field pH meters, are handheld pH meters that are used to take the pH of a sample in a field or production site. [19]

4. Soil test - Wikipedia

   en.wikipedia.org/wiki/Soil_test

   In geotechnical engineering, a soil test can be used to determine the physical characteristics of a soil, such as its water content, void ratio or bulk density. Soil testing can also provide information related to the shear strength, rate of consolidation and permeability of the soil. The following is a non-exhaustive list of engineering soil ...

5. The 2 Best Ways to Test Your Soil pH, According to a ... - AOL

   www.aol.com/lifestyle/2-best-ways-test-soil...

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6. pH indicator - Wikipedia

   en.wikipedia.org/wiki/PH_indicator

   A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...

7. Soil quality - Wikipedia

   en.wikipedia.org/wiki/Soil_quality

   Soil quality refers to the condition of soil based on its capacity to perform ecosystem services that meet the needs of human and non-human life. [1][2][3][4] Soil quality reflects how well a soil performs the functions of maintaining biodiversity and productivity, partitioning water and solute flow, filtering and buffering, nutrient cycling ...