Potassium sulphate, also known as sulphate of potash (SOP) is an excellent source of water soluble, slow release potassium and sulphur. This natural mineral fertilizer is mined from ancient sea deposits and processed to remove impurities. Potassium sulphate has a lower salt index compared to many other potassium fertilizers and is a good alternative to potassium chloride, which has a much higher salt index and contains high levels of chloride, which can also be toxic to plants.
GAIA GREEN Potassium Sulphate is approved for use in organic agriculture by Ecocert Canada (in compliance with Canada’s Organic Production Systems General Principles & Management Standards and Permitted Substances Lists (CAN/CGSB 32.310-2015 and CAN/CGSB 32.311-2015)).
Potassium Sulphate 0-0-50
- Excellent source of soluble, yet slow release potassium and sulphur
- Low salt index
- Does not contain chloride