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  2. Labeling of fertilizer - Wikipedia

    en.wikipedia.org/wiki/Labeling_of_fertilizer

    Therefore, pure KCl is 39.09/(39.09 + 35.45) = 52% potassium and 48% chlorine by weight. Its K value is therefore 52/0.83 = 63; that is, a fertilizer that gets all its potassium from K 2 O and has the same potassium contents as pure KCl would have to be 63% K 2 O. Pure KCl fertilizer would thus be labeled 0-0-63.

  3. Leonite - Wikipedia

    en.wikipedia.org/wiki/Leonite

    Leonite can be used directly as a fertilizer, contributing potassium and magnesium. It can be refined to K 2 SO 4 for fertilizer use. [36] The process to convert leonite to potassium sulfate involves mixing it with a potassium chloride (a cheaper chemical) solution. The desired product, potassium sulfate, is less soluble and is filtered off.

  4. Langbeinite - Wikipedia

    en.wikipedia.org/wiki/Langbeinite

    Langbeinite is a potassium magnesium sulfate mineral with the chemical formula K 2 Mg 2 (SO 4) 3. Langbeinite crystallizes in the isometric-tetartoidal (cubic) system as transparent colorless or white with pale tints of yellow to green and violet crystalline masses. It has a vitreous luster. The Mohs hardness is 3.5 to 4 and the specific ...

  5. Bittern (salt) - Wikipedia

    en.wikipedia.org/wiki/Bittern_(salt)

    Potassium-magnesium sulfate double salt, a good fertilizer, is a salt that precipitates from bitterns upon addition of methanol. [3] Ethanol is also used, but it exhibits a preference for potassium sulfate precipitation. [3] The solution can furthermore be used in the production of potash and potassium salts. [10]

  6. Potassium magnesium sulfate - Wikipedia

    en.wikipedia.org/wiki/Potassium_magnesium_sulfate

    Potassium magnesium sulfate is a double salt that can crystallise in a number of forms that occur as minerals. Langbeinite K 2 Mg 2 (SO 4) 3; Leonite K 2 Mg(SO 4) 2 ...

  7. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    A fertilizer (American English) or fertiliser (British English) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. [1]

  8. Potassium - Wikipedia

    en.wikipedia.org/wiki/Potassium

    Potassium sulfate/magnesium sulfate fertilizer. Potassium ions are an essential component of plant nutrition and are found in most soil types. [14] They are used as a fertilizer in agriculture, horticulture, and hydroponic culture in the form of chloride (KCl), sulfate (K 2 SO 4), or nitrate (KNO 3), representing the 'K' in 'NPK'.

  9. Potassium sulfate - Wikipedia

    en.wikipedia.org/wiki/Potassium_sulfate

    Potassium sulfate (US) or potassium sulphate (UK), also called sulphate of potash (SOP), arcanite, or archaically potash of sulfur, is the inorganic compound with formula K 2 SO 4, a white water-soluble solid. It is commonly used in fertilizers, providing both potassium and sulfur.

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