Choosing Calcium Ammonium Nitrate(CAN): Application Fit and Specification Checks

What Is Calcium Ammonium Nitrate (CAN)?

Calcium Ammonium Nitrate (CAN) is a compound fertilizer that supplies both nitrogen and quick-acting calcium in a single granule. The molecular formula is 5Ca(NO₃)₂·NH₄NO₃·10H₂O (molecular weight 244.13), and the material appears as a white granular solid. CAS No. 15245-12-2 / EINECS No. 239-289-5 are the standard registry identifiers used in trade documentation.

Because CAN carries two nitrogen fractions — nitrate nitrogen and ammonium nitrogen — it delivers an immediate nitrogen boost while also addressing calcium deficiency in the soil. This dual action makes specification verification especially important: buyers need to confirm both the nitrogen split and the calcium content before committing to a purchase.

Key Specification Parameters to Check

When evaluating Calcium Ammonium Nitrate (CAN) from any supplier, the following values serve as the core verification checklist.

Why each value matters:

• Total nitrogen ≥ 15.5%: This is the headline nutrient figure. A value below this threshold reduces crop response per tonne applied and increases effective cost per unit of nitrogen.
• Nitrate nitrogen ≥ 14.5%: Nitrate form is immediately available for plant uptake — important for fast-growing crops and situations requiring rapid nitrogen correction.
• Ammonium nitrogen ≥ 1.1%: Ammonium fraction is taken up more gradually and can improve nitrogen use efficiency under certain soil pH conditions.
• Calcium ≥ 19%: Calcium supports cell wall development and corrects calcium-deficiency disorders (e.g., blossom-end rot in tomatoes, tip burn in lettuce). Confirming the minimum Ca content is critical for crops with high calcium demand.
• Water content ≤ 1.0%: Low moisture is a handling and shelf-life indicator. Excess moisture causes caking, reduces granule flowability, and may compromise spreader performance.

Buyer action: Request a third-party or mill certificate for each shipment and compare each row against the values above before acceptance.

Application Fit: When CAN Is the Right Choice

1. Greenhouse and High-Value Horticultural Crops

CAN is widely used in greenhouse production. In controlled environments, soil calcium depletion can be rapid due to high irrigation rates and intensive cropping. CAN simultaneously addresses nitrogen demand and replenishes calcium, reducing the need for a separate calcium amendment.

Suitable crops in this context include flowers, vegetables (especially fruiting vegetables such as tomatoes, peppers, and cucumbers), and potted ornamentals.

2. Fruit Production

For fruit crops, CAN supports multiple agronomic goals at once:

• Normal development of root, stem, and leaf tissue
• Extended flowering period (florescence)
• Bright fruit colour and improved fruit sugar content

These benefits are particularly relevant for orchards and berry production where fruit quality — not just yield — is a commercial priority.

3. Large-Area Field Crops and Industrial Crops

CAN is suitable for large-scale field application. The quick-acting nitrate fraction allows timely nitrogen correction during critical growth stages, while the calcium content contributes to soil structure improvement: CAN can increase soil granule structure and reduce soil compaction (lumping), which benefits root penetration and water infiltration over successive growing seasons.

4. Soil Improvement Objectives

Buyers targeting soil health alongside crop yield should note that CAN's calcium content actively improves soil physical properties. If the primary objective is rapid nitrogen supply only (without a calcium requirement), other nitrogen fertilizers may be a better fit — CAN is most cost-effective where both nutrient functions are needed.

Situations Where CAN May Not Be the Best Fit

Buyers should evaluate alternatives when:

• High nitrogen content is the sole requirement. CAN's nitrogen content (≥ 15.5%) is moderate. Where nitrogen density is paramount and calcium is not needed, urea or ammonium nitrate may deliver more nitrogen per tonne.
• Alkaline soil correction is needed. CAN does not acidify soil; buyers seeking pH management should consider ammonium sulphate or acidifying fertilizers.
• Crops show no calcium deficiency risk. In soils already rich in calcium, the calcium component of CAN adds cost without agronomic return.

Always match fertilizer choice to a soil test result and crop requirement rather than selecting on product name alone.

Packaging and Storage Checks

Standard packaging: 25 kg standard export packages in woven PP bags with a PE liner. This is the confirmed commercial unit; buyers sourcing for retail repackaging or bulk application should confirm whether alternative pack sizes are available before ordering.

Storage requirements: Store at a cool, dry, well-ventilated location. Because CAN is hygroscopic, improper storage leads to caking and reduced granule quality. Warehouses with humidity control and adequate ventilation are the minimum acceptable standard.

Handling note: Always verify transport and storage regulations applicable in the destination country. As a material containing nitrate nitrogen, CAN is subject to specific regulations in several markets (US, EU, Middle East). Buyers are responsible for confirming compliance with local import and storage rules before shipment.

Procurement Checklist Summary

Before placing an order for Calcium Ammonium Nitrate (CAN), confirm the following:

1. Specification certificate: Total N ≥ 15.5%, nitrate N ≥ 14.5%, ammonium N ≥ 1.1%, Ca ≥ 19%, water ≤ 1.0%.
2. Application match: Does the crop or field situation require both nitrogen and calcium? If yes, CAN is a strong fit.
3. Packaging unit: 25 kg PP/PE bag confirmed; clarify bulk or alternative pack availability if needed.
4. Storage capability: Cool, dry, ventilated storage confirmed at destination.
5. Regulatory compliance: Import, transport, and storage regulations verified for the destination country.

HEBEI FIZA TECHNOLOGY CO., LTD. supplies CAN under the FIZA brand and can be contacted for quotation and further technical details.