Water Soluble Calcium

Water-Soluble Calcium Fertilizers

Calcium is one of the most critical macronutrients in commercial crop production — essential for cell wall integrity, root tip development, and fruit quality. Custom Hydro stocks premium water-soluble calcium sources for professional fertigation, hydroponic, and foliar programs.

Calcium Sources Available

• Calcium nitrate (CaNO3) — the primary calcium source for hydroponics and fertigation
• Chelated calcium (Ca-EDTA) — for foliar correction of calcium deficiency
• Calcium chloride — for foliar programs where chloride is acceptable
• Calcium formate — highly soluble organic calcium source for foliar and fertigation
• Calcium sulfate (gypsum) — low-solubility calcium and sulfur source for soil amendment

Brands We Carry

• YaraLiva: Premium calcium nitrate for professional growers
• Haifa Cal: Greenhouse-grade calcium nitrate
• PureCal: High-purity calcium nitrate for hydroponics

Key Features

• 100% water-soluble — compatible with all fertigation and hydroponic systems
• Nitrate-N in calcium nitrate does not compete with calcium at the root zone
• Chelated forms available for foliar deficiency correction
• Compatible with most soluble nutrient programs

Ideal Applications

• Hydroponic nutrient solutions
• Fertigation: drip, micro-jet, center pivot, sprinklers
• Foliar spray programs for rapid calcium correction
• Blossom end rot and tip burn prevention programs