• Leaching (agriculture)
  Leaching (agriculture)
  In agriculture, leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. Soil structure, crop planting, type and application rates of fertilizers, and other factors are taken into account to avoid excessive nutrient loss.Leaching may also refer to ...
  
  , the loss of water-soluble plant nutrients from the soil; or applying a small amount of excess irrigation to avoid soil salinity
• Leaching (chemistry), the process of extracting minerals from a solid by dissolving them in a liquid
• Leaching (metallurgy)
  Leaching (metallurgy)
  Leaching is a widely used extractive metallurgy technique which converts metals into soluble salts in aqueous media. Compared to pyrometallurgical operations, leaching is easier to perform and much less harmful, because no gaseous pollution occurs...
  
  , a widely used extractive metallurgy technique which converts metals into soluble salts in aqueous media
  • Dump leaching
    Dump leaching
    Dump leaching is an industrial process to extract precious metals and copper from ores.Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is...
    
    , an industrial process to extract metals from ore taken directly from the mine and stacked on the leach pad without crushing
  • Heap leaching
    Heap leaching
    Heap leaching is an industrial mining process to extract precious metals, copper, uranium, and other compounds from ore.The process has ancient origins; one of the classical methods for the manufacture of copperas was to heap up iron pyrite and collect the leachate from the heap, which was then...
    
    , an industrial process to extract metals from ore which has been crushed into small chunks
  • Tank leaching
    Tank leaching
    In metallurgical processes tank leaching is a hydrometallurgical method of extracting valuable material from ore.Tank leaching is usually differentiated from vat leaching on the following factors:...
    
    , a hydrometallurgical method of extracting valuable material from ore
  • In-situ leaching, a process of recovering minerals such as copper and uranium through boreholes drilled into the deposit
• Leaching (pedology)
  Leaching (pedology)
  In pedology, leaching is the loss of mineral and organic solutes due to percolation. It is a mechanism of soil formation. It is distinct from the soil forming process of eluviation, which is the loss of mineral and organic colloids. Leached and elluviated materials tend to be lost from topsoil and...
  
  , the loss of mineral and organic solutes due to percolation from soil
• Bioleaching
  Bioleaching
  Bioleaching is the extraction of specific metals from their ores through the use of living organisms. This is much cleaner than the traditional heap leaching using cyanide...
  
  , the extraction of specific metals from their ores through the use of bacteria

• In cooking, leaching generally refers to Parboiling.

See also

• Leachate
  Leachate
  Leachate is any liquid that, in passing through matter, extracts solutes, suspended solids or any other component of the material through which it has passed....
  
  , the liquid that drains or 'leaches' from a landfill
• Leach (disambiguation)
• Leech (disambiguation)
  Leech (disambiguation)
  Leech may refer to:* Leech, common name for the annelids comprising the subclass Hirudinea** Leeching, a form of bloodletting in medieval and early-modern medicine which used leeches* Leech, an old term for a doctor of medicine...