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Calcium Nitrate
15.5-0-0 + Ca Fertilizer

Granular Calcium Nitrate Fertilizer | 15.5% N + 26CaO + 0.3B

Risso Calcium Nitrate 15.5-0-0 is a granular fertilizer providing predominantly nitrate nitrogen together with ammoniacal nitrogen, water-soluble calcium and boron for crop nutrition.

What Is Calcium Nitrate 15.5-0-0?

Calcium Nitrate is a nitrogen-calcium fertilizer supplying nitrate nitrogen, ammoniacal nitrogen and calcium in a single fertilizer.

Risso Calcium Nitrate 15.5-0-0 is a granular fertilizer with 15.5% total nitrogen, predominantly supplied as nitrate nitrogen. It combines readily available nitrogen with a substantial supply of soluble calcium.

The current Risso product specification contains:

15.5% N + 26% CaO + 0.3% B

The nitrogen profile is predominantly nitrate-based:

  • Nitrate-N: ≥14.4%
  • Ammoniacal-N: 1.1%

The product also provides 18.8% minimum water-soluble calcium and 0.3% boron (B).

This nutrient profile makes Calcium Nitrate 15.5-0-0 suitable for crop nutrition programs that require readily available nitrate nitrogen together with calcium and supplemental boron.

ASN Fertilizer Specifications

ParameterSpecification
Product NameCalcium Nitrate 15.5-0-0
Alternative NameCalcium Nitrate Granular
Fertilizer Grade15.5-0-0 + 26CaO + 0.3B
Total Nitrogen (N)≥15.5%
Nitrate Nitrogen (N-NO₃)≥14.4%
Ammoniacal Nitrogen (N-NH₄)≥1.1%
Water-Soluble Calcium (Ca)≥18.8%
Calcium Oxide (CaO)≥25.8%
Boron (B)≥0.3%
Water Insoluble Matter≤0.1%
pH Value5–7
AppearanceYellow Granular
Physical FormGranular

Note: The specifications above are based on the current product data. Final commercial specifications should be verified against the latest Risso Technical Data Sheet (TDS) and the batch-specific Certificate of Analysis (COA).

Key Benefits

  • Top Dressing icon
    Nitrogen + Calcium Provides nitrogen and calcium in one fertilizer for balanced crop nutrition.
  • Basal Application icon
    High Nitrate Nitrogen Contains ≥14.4% nitrate-N for readily available nitrogen nutrition.
  • Broadcasting icon
    Water-Soluble Calcium Provides 18.8% water-soluble calcium for crops with high calcium demand.
  • Boron icon
    Added Boron Contains 0.3% boron to support boron nutrition.
  • Split Application icon
    Fertigation Suitable Suitable for fertigation applications with proper compatibility management.

CROPS SUITABLE FOR 15.5-0-0

  • Vegetable Crops icon
    Vegetables

Tomato · Pepper · Cucumber · Lettuce · Cabbage · Cauliflower · Broccoli · Onion · Melon · Leafy Vegetables

  • Fruit Crops icon
    Fruit Crops

Strawberry · Grape · Apple · Pear · Citrus · Melon · Watermelon · Other Fruit Crops

  • Greenhouse Crops icon
    Greenhouse
    & Protected Crops

Greenhouse Vegetables · Fruit Vegetables · Nursery Crops · Substrate-Grown Crops · Hydroponic Crops

  • Specialty Crops icon
    Specialty Crops

High-Value Vegetables · Fruit Crops · Soilless Crops · Hydroponic Crops · Protected-Culture Crops

Calcium Nitrate Applications

Risso Calcium Nitrate 15.5-0-0 provides nitrate nitrogen, ammoniacal nitrogen, calcium and boron for efficient crop nutrition.

Soil Application

Suitable for basal application, top dressing, side dressing and split application, with rates adjusted to crop requirements and soil conditions.

Fertigation

Suitable for drip irrigation, greenhouse fertigation and soilless cultivation where product compatibility and water quality are appropriate.

Fertilizer Raw Material

Calcium Nitrate 15.5 can also be used as a raw material for compound and specialty fertilizer production, depending on the target formulation.

Calcium Nitrate 15.5-0-0 VS CAN 27

Feature Calcium Nitrate 15.5 CAN 27
Total Nitrogen 15.5% 27%
Nitrogen Forms Predominantly Nitrate Nitrate + Ammonium
Nitrate Nitrogen ≥14.4% Approx. 13.5%
Ammoniacal Nitrogen 1.1% Approx. 13.5%
Calcium 18.8% Water-Soluble Ca Typically included
Boron 0.3% B Usually Not Included
Physical Form Granular Granular
Main Nutrient Focus Nitrogen + Calcium + Boron Nitrogen Supply
Typical Application Soil Application / Top Dressing / Fertigation* Soil Application / Top Dressing
Key Feature High Nitrate-N and Calcium High Total Nitrogen

Calcium Nitrate vs ASN Fertilizer 26-0-0+13S

FeatureCalcium Nitrate 15.5-0-0ASN 26-0-0+13S
Product TypeCalcium-based nitrogen fertilizerAmmonium Sulfate Nitrate
Total Nitrogen15.5%26%
Nitrate Nitrogen≥14.4%Up to 9.5%
Ammoniacal Nitrogen1.1%Approx. 17%
Calcium / Sulfur26% CaO13%  Sulfur
Physical FormGranularGranular
Main Nutrient FocusNitrogen + Calcium + BoronNitrogen + Sulfur
Nitrogen ProfilePredominantly nitrate-NNitrate-N + ammonium-N
Typical ApplicationSoil application / Top dressing / Fertigation*Soil application / Top dressing
Key FeatureReadily available nitrate-N with calciumHigh-N fertilizer with sulfur

TECHNICAL DOCUMENTS

  • SGS icon
    SGS Inspection or certification documents, where applicable.
    SGS
  • COA icon
    COA Batch-specific quality and test information.
    COA
  • SDS icon
    SDS Safety, handling, and storage information.
    SDS
  • TDS ICON
    TDS Product specifications and technical information.
    TDS

MANUFACTURER & SUPPLIER

  • Consistent Product Specifications
    Consistent Product Specifications
  • Technical Documents icon
    Technical Documentation
  • Flexible Packaging icon
    Flexible Packaging
  • OEM & Private Label icon
    OEM & Private Label
  • Global Supply icon
    International Supply
  • Global Supply icon
    Technical Sales Support

STORAGE & HANDLING

  • Storage ICON
    Store in a cool, dry, and well-ventilated warehouse.
  • Moisture Protection icon
    Protect from rain, moisture, and prolonged exposure to humidity.
  • Packaging icon
    Keep bags sealed and store on pallets or dry surfaces.
  • Handling icon
    Follow the latest SDS and applicable local regulations.

Packaging & Supply

Standard Bags

Standard Bags

25 kg / 50 kg

Jumbo Bags

Jumbo Bags

500 kg / 1,000 kg

Bulk Supply

Bulk Supply

Available for qualified customers.

OEM & PRIVATE LABEL

OEM & Private Label

Customized branding and packaging.

FREQUENTLY ASKED QUESTIONS

Calcium Nitrate 15.5-0-0 is a nitrogen-calcium fertilizer containing predominantly nitrate nitrogen together with calcium. Risso Calcium Nitrate contains 15.5% total nitrogen, 18.8% water-soluble calcium and 0.3% boron according to its current specification.

The Risso product grade is:

15.5-0-0 + 26CaO + 0.3B

It supplies nitrogen, calcium and boron in granular form.

Risso Calcium Nitrate contains a minimum of 15.5% total nitrogen. The current COA reports 15.6% total N.

Risso Calcium Nitrate contains a minimum of 15.5% total nitrogen. The current COA reports 15.6% total N.

The specification requires at least 14.4% nitrate nitrogen, while the current COA reports 14.5% nitrate-N.

The specification contains at least 18.8% water-soluble calcium, while the current COA reports 26.0% CaO.

Yes. Risso Calcium Nitrate 15.5-0-0 contains 0.3% boron (B).

It can be used in fertigation where the product's solubility, irrigation-water quality and fertilizer compatibility are suitable.

Yes. It can be incorporated into nutrition programs for tomato, pepper, cucumber, lettuce, cabbage and other vegetables requiring nitrogen and calcium.

Yes. It can be used in nutrition programs for strawberry, grape, apple, pear, citrus, melon and other fruit crops, according to crop requirements.

Concentrated calcium fertilizer should not be mixed directly with concentrated phosphate solutions unless compatibility has been confirmed. Calcium phosphate precipitation may occur and can cause deposits or clogging in fertigation systems.

Calcium-containing fertilizer concentrates should generally be kept separate from concentrated sulfate fertilizers because calcium sulfate precipitation may occur.

REQUEST CALCIUM NITRATE PRICING

Tell us your requirements, and our team will provide product information and a quotation.

Product: Calcium Nitrate 15.5-0-0+26Ca
Quantity: Required Volume
Packaging: 25 kg / 50 kg / Jumbo Bag / Bulk / Other
Destination: Country / Port
Application: Crop / Agricultural Use
Delivery: Required Schedule

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