Potassium Sulphate (SOP) Supplier South Africa

What Is Potassium Sulphate (SOP)?

Potassium Sulphate (K₂SO₄), known as SOP or sulphate of potash, is a premium chloride-free potassium fertilizer containing 50–52% K₂O and 17–18% sulphur. Unlike Potassium Chloride (MOP), SOP contains no chloride, making it the preferred potassium source for chloride-sensitive crops such as tobacco, table grapes, citrus, and many horticultural species. The sulphate form of potassium is also directly available to plants without any soil conversion.

SOP in Specialty Crop Programs

SOP is widely used in premium fruit and vegetable production where chloride sensitivity is a concern or where additional sulphur is agronomically beneficial. In the Western Cape and other intensive horticultural regions of South Africa, SOP is a standard potassium input in table grape, citrus, and stone fruit programs. It is also used in fertigation where drip systems are managed to minimise chloride accumulation in the soil profile over successive seasons.

Sourcing SOP From Terracore

Terracore supplies agricultural-grade potassium sulphate in granular and powder form in 25 kg bags and bulk quantities. Product is available for immediate dispatch to fertilizer blenders, co-operatives, and farm supply distributors.