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2. Soil pH - Wikipedia

   en.wikipedia.org/wiki/Soil_pH

   Then, using the initial soil pH and the aluminium content, the amount of lime needed to raise the pH to a desired level can be calculated. [68] Amendments other than agricultural lime that can be used to increase the pH of soil include wood ash, industrial calcium oxide , magnesium oxide, basic slag (calcium silicate), and oyster shells.

3. Cation-exchange capacity - Wikipedia

   en.wikipedia.org/wiki/Cation-exchange_capacity

   Effect of soil pH on cation-exchange capacity. The amount of negative charge from deprotonation of clay hydroxy groups or organic matter depends on the pH of the surrounding solution. Increasing the pH (i.e. decreasing the concentration of H + cations) increases this variable charge, and therefore also increases the cation-exchange capacity.

4. Base-cation saturation ratio - Wikipedia

   en.wikipedia.org/wiki/Base-cation_saturation_ratio

   Base-cation saturation ratio (BCSR) is a method of interpreting soil test results that is widely used in sustainable agriculture, supported by the National Sustainable Agriculture Information Service (ATTRA) [1] and claimed to be successfully in use on over a million acres (4,000 km 2) of farmland worldwide.

5. Jeremy Rhoden: Why does soil pH matter to your garden? - AOL

   www.aol.com/weather/jeremy-rhoden-why-does-soil...

   Soil pH Test: For a very low price, your local Extension office will test your soil pH. To have a test completed, simply collect one cup’s worth of soil and remove all debris, such as sticks ...

6. Acid neutralizing capacity - Wikipedia

   en.wikipedia.org/wiki/Acid_neutralizing_capacity

   Acid-neutralizing capacity or ANC in short is a measure for the overall buffering capacity against acidification of a solution, e.g. surface water or soil water.. ANC is defined as the difference between cations of strong bases and anions of strong acids (see below), or dynamically as the amount of acid needed to change the pH value from the sample's value to a chosen different value. [1]

7. 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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8. Residual sodium carbonate index - Wikipedia

   en.wikipedia.org/wiki/Residual_Sodium_Carbonate...

   When dissolved sodium in comparison with dissolved calcium and magnesium is high in water, clay soil swells or undergoes dispersion which drastically reduces its infiltration capacity. [ 1 ] In the dispersed [ clarification needed ] soil structure , the plant roots are unable to spread deeper into the soil due to lack of moisture.

9. Soil test - Wikipedia

   en.wikipedia.org/wiki/Soil_test

   In agriculture, a soil test commonly refers to the analysis of a soil sample to determine nutrient content, composition, and other characteristics such as the acidity or pH level. A soil test can determine fertility , or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive ...