AGROTAIN® nitrogen stabilizer is the original, most research-proven urease inhibitor technology on the market. With 20 years of trials and real-world results on millions of acres worldwide, it’s the one growers trust to protect their nitrogen investment and yield potential every time.
Just how much of a problem is ammonia volatilization? Results from a number of university research studies have shown that
nitrogen loss through ammonia volatilization can be up to 40% of your applied nitrogen. However, when urea was treated with
AGROTAIN® nitrogen stabilizer, only about 10% of the applied nitrogen was lost.
Here's how it works: When granular urea and liquid UAN fertilizers are surface applied, the urease enzyme breaks apart the urea nitrogen. AGROTAIN®
nitrogen stabilizer reduces the activity of urease enzymes. This process consumes hydrogen ions (H+) in the soil, increasing pH
values up to 9.0 or higher in the surrounding soil. As a result, there is a shift in the balance between ammonium (NH4+) and ammonia
(NH3). [See Figure 2] By slowing this activity, the soil has the ability to resist changes in the pH in the immediate vicinity of the urea,
resulting in a lower ammonia volatilization loss and an optimal crop yield potential.
Cumulative ammonia volatilization loss from untreated urea and AGROTAIN® treated urea.
Figure 1. Cumulative ammonia volatilization loss from untreated urea and AGROTAIN® ULTRA treated urea.
Figure 2. Equilibrium between ammonium (NH4+) and ammonia (NH3) at different soil pH levels.
• Source: Franzen et al, 2010; Kelly, 2009; Holcomb et al, 2010 and Holt, 2008.
A recent study by Dr. Rick Engel proved that surface-applied urea still loses a significant amount of nitrogen due to ammonia
volatilization in cold weather, even under freezing conditions. High ammonia volatilization loss under cold conditions was mainly
related to high soil moisture and soil pH.
Fortunately, that same study also showed AGROTAIN® nitrogen stabilizer protects against this cold weather loss. At one location,
untreated urea lost about 44% of its nitrogen through ammonia volatilization after nine weeks (63 days) while urea treated with
AGROTAIN® stabilizer only lost about 12%.
• Silt loam soil (pH 8.3) • Precipitation of 0.8 in between 0–9 weeks • Nitrogen rate of 99.7 kg N/ha • Fertilizer applied on February 26 • AGROTAIN® stabilizer applied at label rate
• Soil temperature was about 0° C at the day of application • Campaign 10 • Source: Engel et al., 2011. Montana State University.
Urea treated with AGROTAIN® nitrogen stabilizer is a proven alternative to ammonium nitrate (AN) fertilizer. Research shows that urea treated with AGROTAIN® nitrogen stabilizer gives growers the same yield performance as AN, but with less regulatory concerns. Other AGROTAlN®-treated urea benefits include: Higher nitrogen content (46% vs. 34%), The ability to cover 35% more acres per ton of product, Less regulatory and transportation issues, More storage options .
The entire line of AGROTAIN® nitrogen stabilizer products helps control ammonia volatilization with the longest recognized urease inhibitor defined by the Association of American Plant Food Control Officials (AAPFCO).
An innovative, patented liquid formulation with optimized cold-weather handling properties
and quicker drying time when applied to urea. The proprietary formulation allows for a reduced
application rate, minimizing the potential for buildup and allowing retailers to treat faster
and store less product.
AGROTAIN® DRI-MAXX stabilizer is our improved, patented dry formulation.
This highly concentrated dry formulation offers improved handling characteristics
as well as better flowability. This product adheres to the urea granules
without adding additional moisture to the blend, resulting in minimal build-up.
AGROTAIN® ULTRA stabilizer is a liquid formulation urease inhibitor
that protects against ammonia volatilization. It can be blended with urea or UAN.
Hear what growers are saying about AGROTAIN® nitrogen stabilizer.