Among the many potassium fertilizers available today, four products are most commonly used in agricultural production: Potassium Nitrate (KNO₃), Mono Potassium Phosphate (MKP), Potassium Chloride (MOP/KCl), and Potassium Sulfate (SOP/K₂SO₄). Each has distinct nutrient characteristics, application scenarios, and limitations. Understanding these differences helps growers optimize fertilizer efficiency, avoid nutrient imbalances, and achieve better economic returns.

In the first quarter of 2026, the global fertilizer market experienced significant disruption driven by multiple converging factors, resulting in a landscape characterized by firm domestic markets, volatile global supply, and divergent policy interventions.