NLock 30% NBPT is a concentrated urease inhibitor formulated for maximum efficiency in protecting urea and UAN fertilizers from ammonia volatilization losses. With a higher concentration of NBPT than standard stabilizers, NLock 30% delivers robust nitrogen protection while requiring lower application volumes — simplifying handling, blending, and logistics. When you need strong, consistent surface protection for your nitrogen investment, NLock 30% delivers, optimizing your fertility program.
How It Works
NBPT (N-(n-butyl) thiophosphoric triamide) inhibits the urease enzyme that rapidly converts urea into ammonium carbonate. By blocking this reaction, NLock 30% prevents the release of ammonia gas from surface-applied fertilizers. This extends the window for rainfall or irrigation to move urea safely into the soil profile for plant uptake.
Why Use NLock 30%
Higher NBPT concentration = lower liquid volume needed per tonne of fertilizer, Reduces handling time, storage space, and transport costs, Ideal for large-scale retail blending plants or on-farm coating systems, Strong, proven protection in high-risk volatilization conditions (hot, windy, dry, high pH soils).
Key Features and Benefits
Up to 84% reduction in ammonia volatilization compared to untreated urea, Improved nitrogen use efficiency (NUE), Greater yield stability and improved early crop vigor, More nitrogen staying where it should be — in the soil, feeding your crop.
Active Ingredient
NBPT: 30%. Formulated with a high-purity solvent carrier for uniform coating and maximum adhesion to fertilizer granules.
Application Guidelines
Target Fertilizers: Urea, UAN. Recommended Application: Typically 1.5–2.5 liters per metric tonne of urea, depending on environment and fertilizer type. Methods: Fertilizer blender systems, direct on-farm coating, UAN injection. Always consult your agronomist for local recommendations based on climate risk and timing for your fertility strategy.
Trial Data
| TREATMENT | Untreated Urea | NLock 30% NBPT & 15% DMPP |
|---|---|---|
| 2 YEAR AVG. NH3 LOSS (kg of N/ha) | 16.6 | 4.5 |
| % LOSS REDUCTION | 72.8 | |
| 2 YEAR AVG. YIELD (bu/acre) | 42.3 | 43.6 |
| % CHANGE | 2.9 |
| TREATMENT | Untreated UAN | NLock 30% NBPT & 15% DMPP |
|---|---|---|
| 2 YEAR AVG. NH3 LOSS (kg of N/ha) | 7.3 | 2.9 |
| % LOSS REDUCTION | 60.7 | |
| 2 YEAR AVG. YIELD (bu/acre) | 45.8 | 48.1 |
| % CHANGE | 5.1 |
| TREATMENT | Untreated Urea | NLock 30% NBPT & 15% DMPP |
|---|---|---|
| 2 YEAR AVG. NH3 LOSS (kg of N/ha) | 16.3 | 2.7 |
| % LOSS REDUCTION | 83.5 | |
| 2 YEAR AVG. YIELD (bu/acre) | 46.4 | 51.2 |
| % CHANGE | 10.5 |
saved
| TREATMENT | Urea | NLock 30%NBPT + Urea |
|---|---|---|
| BANDED TOTAL NH3 LOSS (kg N/ha) | 16.6 (kg N/ha) | 1.3 (kg N/ha) |
| % REDUCTION | 92.3% | |
| BROADCAST TOTAL NH3 LOSS (kg N/ha) | 19.2 (kg N/ha) | 2.4 (kg N/ha) |
| % REDUCTION | 87.6% |
saved
| TREATMENT | UAN | NLock 30%NBPT + UAN |
|---|---|---|
| BANDED TOTAL NH3 LOSS (kg N/ha) | 3.3 (kg N/ha) | 1.0 (kg N/ha) |
| % REDUCTION | 70.4% | |
| BROADCAST TOTAL NH3 LOSS (kg N/ha) | 2.8 (kg N/ha) | 1.6 (kg N/ha) |
| % REDUCTION | 41.4% |
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