Potassium Nitrate (KNO3) is a highly soluble fertilizer providing dual macronutrients (Nitrogen & Potassium), essential for fruit sizing, bloom quality, and disease resistance.
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Potassium Nitrate is a high-grade chemical source supplying essential plant nutrients. The standard NPK ratio of this fertilizer is 13-0-46, which signifies that it contains 13% Nitrogen (N), 0% Phosphorus as P₂O₅, and 46% Potassium as K₂O by total product weight. Under agronomic standards, the phosphorus and potassium components are expressed in their oxide forms rather than elemental phosphorus and potassium.
When dissolved in water, this fertilizer dissociates into plant-available ionic nutrients. This allows roots to absorb them instantly via active transport. Understanding the exact composition prevents chemical lockouts and guarantees optimal nutrient concentrations.
This fertilizer is highly effective when applied to crops and systems requiring quick, specific nutrient supply:
At a standard temperature of 20°C, the maximum solubility limit of Potassium Nitrate is 316 grams per liter of water. Attempting to mix at concentrations above this threshold will result in precipitation, leaving undissolved particles at the bottom of your reservoir or mixing tank.
To prevent chemical reactions that render nutrients unavailable to plants, observe the following compatibility constraints:
Highly soluble, but solution cools significantly when dissolved. Warm water helps speed up the process.
Avoid mixing with high concentrations of phosphate in hard water to prevent cloudiness.
Compare or blend Potassium Nitrate with other high-grade fertilizer materials to complete your custom recipe:
Applying 13% Nitrogen via surface broadcast yields a ~30% volatilization loss (3.90% N lost to atmosphere).