Calcium Nitrate Fertilizer 15.5-0-0
Calcium Nitrate Fertilizer 15.5-0-0
Deliver two of the most in-demand plant nutrients in a single dissolving step with Calcium Nitrate Fertilizer 15.5-0-0. This 100% water-soluble formula provides a fast-acting dose of 15.5% nitrogen and 19% calcium, completely free of phosphate and potash.
Nitrogen drives chlorophyll production and lush vegetative growth, while calcium fortifies cell-wall structure in rapidly expanding fruit and leaf tissue. Because the nitrogen is almost entirely fast-acting nitrate, it is plant-available the moment it dissolves. Nitrate is also the preferred nitrogen form for calcium-sensitive crops, as it won't compete with calcium for root uptake the way ammonium does.
Ideal For:
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Hydroponics & Fertigation: A clean, completely soluble, phosphate-free nutrient source that leaves zero residue.
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Vegetable Sidedressing: Perfect for tomatoes, peppers, and cucurbits to support rapid growth and prevent calcium deficiencies.
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Foliar Feeding: Highly effective as a low-rate foliar supplement during phases of rapid vegetative expansion.
Key Features:
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Fast-Acting Formula: 15.5% Nitrogen and 19% Calcium.
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Near-Neutral pH: Safely nourishes plants with a near-neutral effect on your soil's pH levels.
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Tested & Certified: CDFA registered and rigorously third-party lab-tested for heavy metals, with results consistently well below required limits.
Important Handling & Application Rules:
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Crucial Mixing Rule: Never combine calcium with concentrated phosphate or sulfate fertilizers in the same stock tank, as they will form an insoluble precipitate. Keep calcium nitrate in a separate stock tank and combine them only in the final, dilute solution.
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Application Best Practices: Always water in thoroughly for dry applications, and apply foliar sprays during cool conditions.
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Storage: This product is hygroscopic (readily absorbs moisture from the air). Always store tightly sealed in a dry environment.