Potash
Potash is a group of water-soluble potassium salts, chiefly potassium chloride and potassium sulfate, used mainly to make fertilizers.
Potassium in plants: Potassium is an essential plant nutrient that supports water regulation, enzyme activity, and photosynthesis. Potash fertilizers supply the potassium plants need for growth and stress tolerance.
Potassium chloride: Potassium chloride is an ionic compound of potassium and chloride, commonly used as a fertilizer salt. It is the dominant potassium-bearing material in commercial potash.
Evaporite: Evaporites are mineral deposits formed when dissolved salts precipitate as water evaporates. Many potash ores formed in ancient evaporating seas and restricted basins.
Wood ash: Wood ash is the mineral-rich residue left after wood burns. Leaching ash once provided potassium-rich salts that gave potash its name.
Green Revolution: The Green Revolution was a mid-twentieth-century transformation of crop production through improved varieties, irrigation, and agricultural inputs. Expanded fertilizer use, including potash, supported higher-yielding agriculture.
NPK fertilizer: NPK fertilizer contains the primary plant nutrients nitrogen, phosphorus, and potassium. Potash is the potassium source represented by K in fertilizer grades.
Potassium sulfate: Potassium sulfate is an ionic compound containing potassium and sulfate, used as a fertilizer. It is a chloride-free potash fertilizer suited to chloride-sensitive crops.
Sylvite: Sylvite is the mineral form of potassium chloride and a principal potash ore. Its crystals are the main potassium-bearing component mined in many deposits.
Leaching: Leaching is the extraction or removal of soluble substances by passing liquid through a material. Water leaching separated soluble potassium salts from historical wood-ash sources.
Fertilizer industry: The fertilizer industry produces and distributes materials that supply nutrients to crops. Potash mining and processing form a major segment of this industry.