Sulphate of Potash (SOP)
Premium Potassium for Sensitive Crops
BioFert Sulphate of Potash (SOP) is a high-quality source of potassium (K₂O) and sulphur (SO₄²⁻), designed to support flowering, fruiting, and overall plant resilience. It is especially suited to chloride-sensitive crops such as grapes, berries, vegetables, and fruit trees, where balanced potassium and sulphur nutrition directly improves yield, quality, and crop consistency.
As a readily soluble fertiliser, SOP is fast-acting in soil, foliar, or fertigation systems, providing efficient delivery of potassium and sulphur. Its neutral chloride profile makes it gentler on soil biology and plant roots, while still blending seamlessly with most other fertiliser inputs. This makes SOP a versatile addition to nutrient programmes across horticulture, viticulture, farming, and amenity sectors.
By strengthening stems, improving water-use efficiency, and enhancing crop quality, BioFert SOP supports growers in achieving higher yields, stronger crops, and better returns.