About Potassium Nitrate

Background information on potassium nitrate, its role in agriculture, production context, and market dynamics.

Last reviewed: January 2026

Overview

Potassium nitrate (chemical formula KNO₃) is a crystalline compound that serves as a source of both potassium and nitrogen for plant nutrition. It has been known and used for centuries, with modern agricultural applications benefiting from industrial-scale production that ensures consistent quality and availability.

In contemporary agriculture, potassium nitrate is valued particularly for intensive production systems, high-value crops, and applications requiring water-soluble, chloride-free nutrient sources.

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