Potassium Nitrate (KNO3) – Water Soluble Nitrogen Source

Potassium nitrate delivers nitrogen exclusively in nitrate form — the most readily plant-available N source. Unlike ammonium-based fertilizers, nitrate-N does not compete with calcium for root absorption, making KNO3 the preferred nitrogen source in hydroponic and high-calcium fertigation programs.

Key Features

  • Nitrogen in nitrate form — immediately available for plant uptake
  • Nitrate-N does not compete with calcium at the root zone
  • Synergistic NO3⁻ and K₂O uptake — enhances absorption of both elements
  • Compatible with calcium-rich waters — no risk of precipitation
  • Chloride-free — ideal for salinity-sensitive crops
  • Suitable for all soil types, growing media, and production systems

Ideal Applications

  • Hydroponic nutrient solutions
  • Fertigation: drip, micro-jet, center pivot, sprinklers
  • Foliar spray programs
  • Crops sensitive to ammonium toxicity or salinity

Brands We Carry

  • Haifa Multi-K GG: Greenhouse-grade potassium nitrate
  • Haifa Multi-K RECI: Ultra-low sodium KNO3 for closed-loop hydroponics
  • UltraSol K Plus: Premium water-soluble potassium nitrate

Serving Arkansas, Kansas, Missouri and Oklahoma. Shipping Nationwide! Wholesale to the public!