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  2. Soil acidification - Wikipedia

    en.wikipedia.org/wiki/Soil_acidification

    This compound causes rainfall pH to be around 5.0–5.5. When rainfall has a lower pH than natural levels, it can cause rapid acidification of soil. Sulfur dioxide and nitrogen oxides are precursors of stronger acids that can lead to acid rain production when they react with water in the atmosphere.

  3. Ginger - Wikipedia

    en.wikipedia.org/wiki/Ginger

    Ginger is a common spice used worldwide, whether for meals or as a folk medicine. [42] Ginger can be used for a variety of food items such as vegetables, candy, soda, pickles, and alcoholic beverages. [39] Ginger is a fragrant kitchen spice. [5] Young ginger rhizomes are juicy and fleshy with a mild taste.

  4. Plant root exudates - Wikipedia

    en.wikipedia.org/wiki/Plant_root_exudates

    The rhizosphere is the thin area of soil immediately surrounding the root system. It is a densely populated area in which the roots compete with invading root systems of neighboring plant species for space, water, and mineral nutrients as well as form positive and negative relationships with soil-borne microorganisms such as bacteria, fungi and insects.

  5. 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.

  6. Soil biodiversity - Wikipedia

    en.wikipedia.org/wiki/Soil_biodiversity

    Measured on the pH scale, soil acidity is an invisible condition that directly affects soil fertility and toxicity by determining which elements in the soil are available for absorption by plants. Increases in soil acidity are caused by removal of agricultural product from the paddock, leaching of nitrogen as nitrate below the root zone ...

  7. Plant nutrients in soil - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrients_in_soil

    Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...

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  9. Agricultural soil science - Wikipedia

    en.wikipedia.org/wiki/Agricultural_soil_science

    Soil acidity or soil pH and cation-exchange capacity: Root cells act as hydrogen pumps and the surrounding concentration of hydrogen ions affects their ability to absorb nutrients. pH is a measure of this concentration. Each plant species achieves maximum growth in a particular pH range, yet the vast majority of edible plants can grow in soil ...