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  2. 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 ...

  3. Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrition

    When soil-potassium levels are high, plants take up more potassium than needed for healthy growth. The term luxury consumption has been applied to this. Potassium intake increases with root temperature and depresses calcium uptake. [47] Calcium to boron ratio must be maintained in a narrow range for normal plant growth.

  4. Hypercalcaemia - Wikipedia

    en.wikipedia.org/wiki/Hypercalcaemia

    Calcipotriene causes a rapid rise in calcium ion levels. [31] Calcium ion levels can remain high for weeks if untreated and lead to an array of medical issues. [31] There are also cases of hypercalcemia reported due to dogs ingesting rodenticides containing a chemical similar to calcipotriene found in psoriasis cream. [31]

  5. Base-cation saturation ratio - Wikipedia

    en.wikipedia.org/wiki/Base-cation_saturation_ratio

    In 1892 Oscar Loew observed that both calcium and magnesium can be toxic to plants when there is an excess of one and a deficiency of the other, thus suggesting there may be an optimal Ca:Mg ratio. [ 4 ] [ 5 ] In 1901 Oscar Loew and D.W. May did further testing and suggested an ideal Ca:Mg ratio of 5 to 4, though for several species maximum ...

  6. Carnivorous plant - Wikipedia

    en.wikipedia.org/wiki/Carnivorous_plant

    Pinguicula valisneriifolia grows in soils with high levels of calcium but requires strong illumination and lower competition than many butterworts. [58] In general, carnivorous plants are poor competitors, because they invest too heavily in structures that have no selective advantage in nutrient-rich habitats. They succeed only where other ...

  7. High levels of lead found in 12 cinnamon brands. List to avoid.

    www.aol.com/consumer-reports-high-lead-levels...

    Consumer Reports found troubling levels of lead in one-third of ground cinnamon and cinnamon-containing spice blends it tested, according to the findings released Thursday. The tests involved ...

  8. Raphide - Wikipedia

    en.wikipedia.org/wiki/Raphide

    Raphides in Epipremnum Devil's ivy (600× magnification). Raphides (/ ˈ r æ f ɪ d i z / RAF-id-eez; singular raphide / ˈ r eɪ f aɪ d / RAY-fyde or raphis) are needle-shaped crystals of calcium oxalate monohydrate (prismatic monoclinic crystals) or calcium carbonate as aragonite (dipyramidal orthorhombic crystals), found in more than 200 families of plants.

  9. High lead levels found in cinnamon and spice blends from 12 ...

    www.aol.com/lead-levels-high-12-brands-100021495...

    The next highest level was found in cinnamon powder from EGN (2.91 ppm), followed by Mimi’s Products ground cinnamon (2.03 ppm), ShopRite Bowl & Basket ground cinnamon (1.82 ppm), Rani Brand ...