Greenhouse-Grade Calcium Nitrate 15.5-0-0 — 4 lb

Professional greenhouse-grade calcium nitrate for hydroponic, fertigation, and foliar applications. The 4 lb container is ideal for hobbyist growers, small commercial operations, and growers running multi-part nutrient programs who need a reliable calcium and nitrogen source. Fully water-soluble with no residue, this calcium nitrate delivers both calcium and nitrate nitrogen in a single, highly compatible product.

Key Features

• 15.5% total nitrogen — 14.4% nitrate-N + 1.1% ammonium-N to supply nitrate and ammonium nitrogen
• 19% soluble calcium — the preferred calcium source for hydroponic and fertigation systems
• 100% water soluble — free-flowing fine granular; dissolves completely with no residue
• Chloride and sodium free — safe for sensitive crops and recirculating systems
• Compatible with all fertigation systems — hydroponics, drip, NFT, DWC, foliar
• Calcium nutrition support — helps address calcium deficiency as part of a balanced nutrient program

Applications

• Hydroponic nutrient solution calcium and nitrogen source
• Fertigation and drip irrigation supplementation
• Foliar calcium application
• Calcium nutrition for tomatoes, peppers, and leafy greens

Specifications

• Analysis: 15.5-0-0 with 19% Ca
• Nitrogen: 15.5% total (14.4% NO₃-N, 1.1% NH₄-N)
• Calcium: 19% soluble
• Grade: Greenhouse/Solution grade
• Container: 4 lb
• SKU: YARA-CALCINIT-4lb

Mixing and nutrient management

Choose application rates for your crop, water analysis and complete nutrient program. Supplying calcium alone does not guarantee prevention of tip burn or blossom end rot.