Potassium Nitrate (KNO3) 13-0-46 – 50 lb Bucket

Greenhouse-grade potassium nitrate is a fully water-soluble source of nitrate nitrogen and potassium. Nitrate-N is immediately plant-available and does not compete with calcium for root absorption — ideal for hydroponics and high-calcium fertigation programs.

Analysis

• Total Nitrogen (N): 13.5% (all nitrate)
• Potassium (K₂O): 46.2%
• Solubility: 315 g/L
• EC (1 g/L @ 25°C): 1.3 mS/cm
• pH (1% solution): 8–9
• 1 gram per gallon yields ~36 ppm N and ~101 ppm K

Key Features

• Chloride-free — ideal for chloride-sensitive crops
• Nitrate-N does not compete with calcium at the root zone
• Compatible with calcium-rich waters — no precipitation risk
• Suitable for all soil types, growing media, and production systems

Ideal Application Methods

• Hydroponic nutrient solutions
• Fertigation: drip, micro-jet, center pivot, sprinklers
• Foliar spray programs

Packaging

• 50 lb — ships as 5 × 10 lb bags in a 5-gallon bucket
• Ground shipping only (UPS/FedEx) — Hazardous Material 5.1 Oxidizer