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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. Alkali soil - Wikipedia

    en.wikipedia.org/wiki/Alkali_soil

    A pH of 7 therefore corresponds to a pOH of 7, and a pH of 9 with a pOH of 5. Formally it is preferred to express the ion concentrations in terms of chemical activity, but this hardly affects the value of the pH. Water with excess H 3 O + ions is called acid (pH < 7), and water with excess OH – ions is called alkaline or rather basic (pH > 7).

  4. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]

  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. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    For example, a sandy loam soil with 20% gravel would be called gravelly sandy loam. When the organic component of a soil is substantial, the soil is called organic soil rather than mineral soil. A soil is called organic if: Mineral fraction is 0% clay and organic matter is 20% or more

  7. Ultisol - Wikipedia

    en.wikipedia.org/wiki/Ultisol

    The use of soil tests, coupled with the corresponding provisions, can alleviate issues of nutrition and irrigation that can result from non porous Ultisol. [4] Soil tests help indicate the pH, and red clay soil typically has a low pH. [5] The addition of lime is used to help to increase the pH in soil and can help increase the pH in Ultisol as ...

  8. 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 .

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