How Calcium Ammonium Nitrate Enhances Crop Growth and Soil Fertility

What is Calcium Ammonium Nitrate?

Calcium Ammonium Nitrate (CAN) is a versatile nitrogen fertilizer that combines ammonium nitrate (NH₄NO₃) and calcium carbonate (CaCO₃). It is widely used in agriculture for its high nitrogen content, fast absorption, and soil-improving properties.

Applications of Calcium Ammonium Nitrate

1. Agriculture & Crop Fertilization

• Promotes balanced nitrogen uptake, reducing nitrogen losses compared to urea.

• Improves soil structure by supplying calcium, preventing soil acidification.

• Enhances root growth and fruit quality, making it ideal for vegetables, fruits, cereals, and cash crops.

2. Industrial Uses

• Used as a component in explosives for mining and construction.

• Applied in wastewater treatment for removing phosphorus.

Benefits of Calcium Ammonium Nitrate

✔ Fast-Acting & Efficient – Provides both quick and sustained nitrogen release.
✔ Prevents Soil Acidification – Unlike urea or ammonium sulfate, CAN does not acidify the soil.
✔ Reduces Nitrate Leaching – Ammonium nitrogen stays in the soil longer, minimizing nutrient loss.
✔ Improves Crop Quality – Calcium strengthens cell walls, reducing fruit cracking and improving shelf life.
✔ Safe & Stable – Lower risk of explosion compared to ammonium nitrate.

Usage and Application Guidelines

• Dosage:

  • Field Crops: 100–200 kg/ha

  • Vegetables & Fruits: 150–250 kg/ha

  
  

• Application Methods:

  • Broadcasting before irrigation

  • Drip irrigation or foliar spraying

  • Top dressing during critical growth stages

  
  

Handling & Safety Precautions

⚠ Storage: Keep in cool, dry conditions to prevent moisture absorption.
⚠ Protective Measures: Use gloves and masks when handling large quantities.
⚠ Fire Safety: Non-flammable but oxidizing, avoid mixing with organic materials.

FAQs About Calcium Ammonium Nitrate

Q1: Can CAN be used in all soil types?
A: Yes, it works well in both acidic and alkaline soils without causing acidification.

Q2: How does CAN compare to Urea?
A: CAN has lower nitrogen content but is more stable and less prone to volatilization losses.

Q3: Is it safe for long-term soil health?
A: Yes, calcium content prevents soil degradation, unlike pure ammonium fertilizers.

Q4: Can it be mixed with other fertilizers?
A: Yes, but avoid mixing with alkaline fertilizers like lime to prevent nutrient loss.

Conclusion

Calcium Ammonium Nitrate (CAN) is an efficient, fast-acting fertilizer that provides balanced nitrogen and calcium, enhancing crop yield, soil health, and plant quality. Its solubility, stability, and non-acidifying properties make it an ideal choice for modern agriculture.