Which fertilizer is rich in potassium?

The fertilizer richest in potassium is Muriate of Potash (MOP), also known as potassium chloride (KCl).

Muriate of Potash is the most commonly used potassium fertilizer in agriculture due to its high potassium content and relatively low cost. Here's a breakdown:

• Composition: MOP typically contains around 60% K₂O (potassium oxide), which is the standard measure of potassium content in fertilizers.

• Usage: It is widely used as a direct application fertilizer or as a key ingredient in blended or compound fertilizers.

• Availability: MOP is readily available worldwide, making it a practical choice for farmers.

While other potassium fertilizers exist, such as:

• Sulfate of Potash (SOP) (K₂SO₄): Contains about 50% K₂O. This is favored for crops sensitive to chloride.
• Potassium Nitrate (KNO₃): Contains about 13% N and 44% K₂O.

Muriate of Potash remains the most potassium-rich and widely used option.