Soluble potash is some of various mined and manufactured salts that contain potassium in water-soluble form. The name derives from pot ash, which refers to plant ashes soaked in water in a pot, the primary means of manufacturing the product before the industrial era. The word potassium is derived from potash.



  • Mostly for use in manufacturing. Various types of fertilizer-potash thus constitute the single largest industrial use of the element potassium in the world.


  • Increase skin strength
  • Plants will still wilt if it gets hot enough; however adequate potassium (K) will increase the plants’ ability to tolerate heat/ drought stress however will not eliminate it.
  • Increase water retention
  • Decrease plant stress
  • Improve resistance to diseases and pests
  • Improve quality, improving marketability


  • No side effects are known.


  • n/a

Other names

  • K2O


Source: Cavagri,


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