Advanced Urease Inhibitor for Urea Protection –
Improving Nitrogen Efficiency
in Real Conditions
Protects Nitrogen
Reduces volatilisation losses and improves nitrogen efficiency.
Solvent-Free Technology
Safer handling and improved compatibility across fertiliser blends.
Consistent Performance
Maintains NBPT performance through storage and application.
The value of protecting nitrogen
More nitrogen retained. More return per hectare.
Preserva improves nitrogen efficiency by ~9% in typical conditions, reducing volatilisation losses and increasing the amount of nitrogen available to the plant.
This additional nitrogen can translate to ~100–200 kg of extra dry matter per hectare, depending on conditions and utilisation.
As fertiliser prices increase, the value of retained nitrogen increases directly — improving the return on every tonne applied.
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Typically delivers 2–3x return on treatment cost
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Converts more applied nitrogen into plant growth
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Reduces waste from volatilisation losses
~9%
~9% more plant-available nitrogen in typical conditions —
a direct measure of field performance.
100-200kg
Additional dry matter per hectare
2-3x
Return on treatment cost
*Dependent on conditions and utilisation
Not all nitrogen protection is equal —
what matters is how much remains available to the crop
Performance that holds through blending
Designed for real-world fertiliser systems — not just straight urea.
• Maintains NBPT performance in acidic and phosphate blends
• Stable through blending, storage and transport
• Compatible with standard blending infrastructure
• Solvent-Free for consistent worker safety
• Consistent performance across field conditions
Where solvent-based systems fall short
Solvent-based systems
• Performance loss in blends
• Sensitivity to acidic components
• Handling and compatibility constraints
Preserva solvent-free system
• Stable NBPT performance in blends
• Solvent-Free for consistent worker safety
• Designed for blending, not just coating
Built for how fertiliser is actually used – not just how it’s tested.
Proven in commercial fertiliser systems
Used in large-scale blending and distribution environments, including established fertiliser programmes in New Zealand and international markets.
Validated through field performance
Consistent improvements in nitrogen efficiency and dry matter production observed under typical farm conditions.
Built for reliable supply
Manufactured at scale with consistent formulation quality, supporting ongoing supply to large distribution networks
Keep more of what you apply.
Nitrogen loss from untreated urea can average ~18% without timely rainfall.
Preserva reduces early-stage losses – retaining more nitrogen in the soil, where it drives growth
Indicative comparison based on 50 kg N/ha application and typical nitrogen loss assumptions
BUILT ON PROVEN UREASE INHIBITOR CHEMISTRY
ENGINEERED FOR REAL-WORLD FERTILISER SYSTEMS
How Preserva Improves Nitrogen Efficiency
- Uses NBPT urease inhibitor technology to slow urea hydrolysis
- Engineered formulation helps stabilisation and maintaining inhibitor performance in challenging blend conditions
- Maintains active performance through storage and transport
- Reduces ammonia volatilisation during the critical early application period
Performance over time
- Reduces early-stage nitrogen loss from urea (first 48 hours)
- Maintains inhibitor performance through blending, storage, and handling
- Delivers consistent efficacy post-blend
- Retains effectiveness even after extended storage periods
Immediate Nitrogen Loss Reduction
50% LOWER
AMMONIA LOSS VS UNTREATED UREA
Performance After Blending & Storage (90 Days)
Performance maintained across common fertiliser blends, even after extended storage.
Looking to improve fertiliser performance?
Talk to us about Preserva or AdTrace.