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  2. Soil pH - Wikipedia

    en.wikipedia.org/wiki/Soil_pH

    The soil pH usually increases when the total alkalinity increases, but the balance of the added cations also has a marked effect on the soil pH. For example, increasing the amount of sodium in an alkaline soil tends to induce dissolution of calcium carbonate , which increases the pH.

  3. Soil acidification - Wikipedia

    en.wikipedia.org/wiki/Soil_acidification

    Soil acidification is the buildup of hydrogen cations, which reduces the soil pH. Chemically, this happens when a proton donor gets added to the soil. The donor can be an acid , such as nitric acid , sulfuric acid , or carbonic acid .

  4. 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.

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

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

    Soil pH influences your plant’s ability to uptake nutrients from the soil. If the soil pH is too high, plants are not able to absorb many micronutrients, such as manganese and iron. When soil pH ...

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

    www.aol.com/entertainment/jeremy-rhoden-why-does...

    Regardless of what nutrients are available in the soil, if the pH is not correct, your plants cannot use them.

  7. Soil - Wikipedia

    en.wikipedia.org/wiki/Soil

    The effect of pH on a soil is to remove from the soil or to make available certain ions. Soils with high acidity tend to have toxic amounts of aluminium and manganese. [116] As a result of a trade-off between toxicity and requirement most nutrients are better available to plants at moderate pH, [117] although most minerals are more soluble in ...