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  2. Potassium deficiency (plants) - Wikipedia

    en.wikipedia.org/wiki/Potassium_deficiency_(plants)

    The deficiency is most common in several important fruit and vegetable crops; notably potatoes, brassicas, tomatoes, apples, currants, gooseberries, and raspberries. Sugar beets, cereals, and clover are also commonly affected. Specific symptoms for each of these plants are as follows: [4] In potatoes, tuber size is much reduced and crop yield ...

  3. Leaching (agriculture) - Wikipedia

    en.wikipedia.org/wiki/Leaching_(agriculture)

    soil type and structure. For example, sandy soil holds little water while clay soils have high water-retention rates; the amount of water used by the plants/crops; how much nitrate is already present in the soil. [3] The level of nitrous oxide (N 2 O) in the Earth's atmosphere is increasing at a rate of 0.2 to 0.3% annually.

  4. Boron deficiency (plant disorder) - Wikipedia

    en.wikipedia.org/wiki/Boron_deficiency_(plant...

    Soils with low organic matter content (<1.5%) are also susceptible to boron deficiency. Highly leached sandy soils are also characteristic of boron deficiency because the boron will not be retained in the soil. [6] Boron toxicity is also possible if the boron content of the soil is high enough that the plant cannot cope with the excess boron.

  5. How to grow vegetables in the extremes of the Great Plains ...

    www.aol.com/grow-vegetables-extremes-great...

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  6. 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 ...

  7. Seaweed fertiliser - Wikipedia

    en.wikipedia.org/wiki/Seaweed_fertiliser

    [22] [18] The industry developed out of demand for ashed soda, or potash, which was used to create glass and soap, and led to shortages for agricultural applications in traditional coastal communities. Potash is a water-soluble potassium rich concentrate made from plant matter, so it was also exported as a fertilizer. [18]

  8. Agricultural lime - Wikipedia

    en.wikipedia.org/wiki/Agricultural_lime

    Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate . Additional chemicals vary depending on the mineral source and may include calcium oxide .

  9. Soil salinity control - Wikipedia

    en.wikipedia.org/wiki/Soil_salinity_control

    The vadose zone of the soil below the soil surface and the water table is subject to four main hydrological inflow and outflow factors: [3] Infiltration of rain and irrigation water (Irr) into the soil through the soil surface (Inf) : Inf = Rain + Irr; Evaporation of soil water through plants and directly into the air through the soil surface ...