OSTCHEM·Macronutrients
Technical-grade potassium nitrate (KNO3, GOST 19790-74) — water-soluble, chloride-free source of ~46% K2O plus nitrate nitrogen.
Main advantages
About this product
Potassium nitrate technical grade (KNO3) manufactured to GOST 19790-74 is a fully water-soluble crystalline salt supplying both potassium and nitrate nitrogen in a single, chloride-free compound. With a nominal grade around 13-0-46, it delivers roughly 46 percent K2O and 13 percent nitrate nitrogen, making it well suited to fertigation and foliar programs on chloride-sensitive crops. The nitrate form is immediately plant-available and pairs efficiently with potassium during fruit and tuber development.
At a glance
Nutrient composition
NPK blend
Values are % nutrient by mass. Balanced blend for starter nutrition.
Nitrogen (N)
13.5%
Vegetative growth, leaf mass
Potassium (K₂O)
46%
Hardiness + grain fill
Application
Full specifications
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Questions & answers
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