محصول تستیPotassium is one of the four essential elements required by plants. It plays a vital role in protein synthesis, sap transport in vessels, osmotic balance, and stomatal regulation. By actively contributing to plant physiological and morphological processes, potassium enhances color, aroma, taste, storability, and resistance to environmental stresses such as cold, heat, salinity, and drought, significantly improving both yield and quality.

Highly soluble potassium sulfate (SOP) is recognized as one of the best potassium sources, also supplying sulfur as another key nutrient. Quality indicators of premium SOP include chlorine content below 0.2%, solubility above 120 g/L at 25°C, pH between 2.5–3.2, and the absence of production-related impurities. Its white color and uniform granulation further confirm product quality.

Relying on expert knowledge and advanced production technology, Sobhan Nahadeh Sabz Zarrin Co. produces high-quality potassium sulfate that rivals and, in some aspects, even surpasses leading imported products.