Liquid UAN Fertilizer
UAN 32-0-0 Liquid Fertilizer
UAN 32-0-0 Liquid Fertilizer
| Product: | Urea Ammonium Nitrate Solution (UAN) |
| Category: | Liquid Fertilizers – Product |
| Total Nitrogen (N): | 32%, (NH₂)₂CO – 16%, NH₄⁺ – 8%, NO₃⁻ – 8%) |
| Solubility: | 100% water-soluble |
| pH Range (1% solution): | 6.5 – 6.8 (neutral, low-corrosive) |
| Appearance: | Clear to pale yellow liquid |
| Application Methods: | Soil drench, foliar spray, fertigation |
| Certificate: | ISO 22241-1, ISO9001 standards |
UAN 32-0-0 Liquid Fertilizer Details
Risso® UAN 32-0-0 is a water-clear liquid nitrogen fertilizer composed of urea, ammonium nitrate, and water. As a homogenous solution, it provides a highly available and balanced mix of fast- and slow-release nitrogen sources, making it ideal for all major row crops and fertigation systems.
With a nitrogen concentration of up to 32% by weight, Risso® UAN delivers exceptional performance in early vegetative growth, green-up, and nitrogen recovery after stress.
Chemical Composition & Specifications
| Property | Specification |
|---|---|
| Chemical Name | Urea Ammonium Nitrate Solution (UAN) |
| Formula | CO(NH₂)₂ + NH₄NO₃ + H₂O |
| Total Nitrogen (N) | 28–32% (w/w), depending on grade |
| – Urea (NH₂)₂CO | 50% of total N (slow-release) |
| – Ammonium (NH₄⁺) | 25% of total N (moderate availability) |
| – Nitrate (NO₃⁻) | 25% of total N (immediate uptake) |
| pH | 6.5–6.8 |
| Density | ~1.32 g/mL at 20 °C (32-0-0 grade) |
| Solubility | 100% water soluble |
| Appearance | Clear to light yellow liquid |
| Freezing Point | –2 °C (32% N), –10 °C (28% N) |
Key Benefits
Triple Nitrogen Action: Combines nitrate (fast-acting), ammonium (medium), and urea (longer-lasting) forms of nitrogen for immediate and extended nutrient release.
Fully Soluble Liquid: No settling or crystallization; ideal for drip irrigation, foliar spraying, and banding.
High Nitrogen Use Efficiency (NUE): Enhances nitrogen availability with reduced leaching losses.
Uniform Application: Consistent nutrient delivery across fields with modern liquid spreaders or pivot systems.
Flexible Compatibility: Can be mixed with pesticides, micronutrients, or nitrification inhibitors.
Labor-Efficient: Easy pumping, mixing, and storage. No bag handling or dilution needed.
Application Recommendations
| Feature | UAN Solution | Urea Granules | Ammonium Nitrate (Solid) |
|---|---|---|---|
| Total N (%) | 28–32% (liquid) | 46% | 34% |
| Immediate Effect | ✓✓✓ (Nitrate) | ✗ | ✓✓ |
| Residual Effect | ✓✓ (Urea + NH₄⁺) | ✓✓✓ | ✓ |
| Leaching Risk | Moderate | High | Low |
| Ease of Application | Very easy (liquid) | Moderate (broadcast) | Moderate (spreader) |
| Equipment Compatibility | Drip, pivot, foliar | Limited to dry systems | Limited |
Comparison: UAN vs Other Nitrogen Sources
| Application Method | Rate (Typical) | Timing Recommendations |
|---|---|---|
| Soil Injection / Banding | 30–60 kg N/ha (≈100–200 kg UAN/ha) | Pre-plant or sidedress |
| Drip Fertigation | 5–15 kg N/ha per application | During vegetative growth stages |
| Foliar Feeding | 1–2% dilution (v/v) | For rapid nitrogen correction (avoid hot days) |
| Tank Mixing | Compatible with most pesticides and micronutrients (Jar test recommended) | — |
⚠️ Note: Use a nitrification inhibitor (e.g., DCD, NBPT) to reduce volatilization when surface-applying UAN. Avoid foliar spraying during high heat (>30 °C).
Compatible Crops
Corn (maize)
Wheat, barley, rice
Soybeans, cotton
Sugarcane, potatoes
Vegetables: tomatoes, lettuce, spinach
Turfgrass & forage
Packaging & Storage
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Available Sizes:
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IBC Tanks (1,000 L)
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Bulk Tanker Loads
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200 L HDPE Drums
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Storage Guidelines:
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Store in sealed tanks away from sunlight
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Maintain above freezing temperature
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Compatible with stainless steel, fiberglass, or HDPE materials
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Avoid direct contact with strong acids or alkalis
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Why Choose Risso® UAN 32-0-0 Liquid Fertilizer?
✔ Triple-Form Nitrogen
Nitrate, ammonium & urea for immediate and lasting effect✔ Fully Water-Soluble
No clogging, ideal for drip, pivot, or foliar use✔ High Nitrogen Efficiency
Fast uptake with reduced nitrogen loss✔ Easy to Apply & Mix
Compatible with most pesticides and micronutrients✔ Safe & Stable
Neutral pH, non-corrosive, long shelf life
