Knowledge Center | Koch Agronomic Services
Knowledge Center | Koch Agronomic Services
Exposing the High Cost of Low-Rate Stabilizers
Article Categories: Blog Icon BLOG, CANADA
Growers have a lot of choices when it comes to choosing a dual inhibitor. It’s important to avoid quick fixes and “too good to be true” solutions. This includes buying into dual inhibitor products that promote effective above and below ground protection when the parts per million (ppm) of active ingredients are not agronomically effective.

While some stabilizers may claim to deliver the same results, the reality is low-rate products are not the same as products with higher active ingredient concentrations.

The Importance of Having the Right Rate

A common misconception in the market is that imitator products are "just as good as" name brand products like SUPERU fertilizer and TRIBUNE nitrogen stabilizer.

The percentage of active ingredients in these other dual inhibitor products may not be high enough to be agronomically effective. To get value and results from your stabilizer, you need to choose an option with a higher active rate.

A laboratory incubation with University of Arkansas in 2020 demonstrated that 1,500 parts per million (ppm) DCD on urea was not significantly different than untreated urea at inhibiting nitrification activity over a 10-day period.1 This means growers using low-rate dual inhibitors are not effectively preventing nitrogen conversion, which results in loss from leaching and denitrification.

With a variety of products on the market claiming to have dual protection, selecting a solution with the right formulation is a critical step to ensuring your nitrogen is protected from loss.

Low Rate Visual_Urea2 Low Rate Visual_UAN2

1 The underlying data is based on third-party laboratory studies funded by Koch Agronomic Services; results may vary based on a number of factors, including environmental conditions. The underlying data was provided by Roberts, University of Arkansas (2019-2020) Research Trial Financial Support Agreements with Koch Agronomic Services, LLC. Neither the universities or institutions, nor the individual researchers referenced, endorse or recommend any product or service.

Invest in Proven Dual Protection

Ammonia volatilization is a big cause of nitrogen loss, but it isn't the only one. Denitrification and nitrate leaching pose significant threats to your nitrogen investment. Setting yourself up for a successful growing season starts with choosing the right dual inhibitor. To get real results and a stronger return on your investment, you need a solution that has a high concentration of active ingredients and is backed by years of research.

Tap into the Unsurpassed Efficiency of SUPERU

Growers across Canada have seen exceptional results with SUPERU premium fertilizer as it contains a proven, agronomically effective level of DCD and NBPT and is backed by 30 years of research. Depending on conditions, SUPERU fertilizer is proven to reduce leaching losses by 30% to 50%.

NBPT the proven urease inhibitor found in SUPERU fertilizer, slows the conversion of urea into ammonia gas, allowing time for incorporation by rainfall or other means. While DCD, the proven nitrification inhibitor, slows the bacteria responsible for the first step of nitrification.

Having a higher level of DCD is crucial in achieving agronomic effectiveness. The amount of DCD present in a dual inhibitor has a significant impact on its ability to prevent nitrogen loss through nitrification. Studies indicate the concentration of DCD in the soil has a direct effect on the percentage of nitrification, indicating that higher DCD concentrations result in a more effective inhibition of nitrification.

Up Your Nitrogen Defense with TRIBUNE

Designed to protect liquid fertilizers from ammonia volatilization, leaching and denitrification, TRIBUNE nitrogen stabilizer delivers where imitator dual inhibitors fall short.

TRIBUNE, featuring Pronitridine, a Koch developed and patented active ingredient, slows nitrification by inhibiting the oxidation of ammonium nitrogen to nitrate nitrogen. The active ingredient Pronitridine binds to the soil, keeping the inhibitor in close proximity to the ammonium nitrogen that needs to be protected. And as a urease inhibitor with an ample load of NBPT, it also slows the hydrolysis of urea and controls volatilization, minimizing ammonia loss.

A Solution for Above Ground Protection

In some cases, dual inhibitor products don't contain an active ingredient load high enough to be agronomically effective for below ground protection. So, if proven above ground nitrogen protection is what you need, ANVOL nitrogen stabilizer is a highly effective solution.

ANVOL features a Koch patented active ingredient, Duromide, that delivers the longest-lasting urease inhibitor protection over a wider range of soil environments. Duromide was developed to extend the protection of nitrogen above ground and is more durable than NBPT.

The synergistic effect of NBPT and Duromide results in a rapid inhibition response. ANVOL gets to work faster while also providing efficacy beyond the window of protection offered by NBPT alone.

For Urea



Active Ingredient (%)

Parts Per Million (ppm)

Application Rate (L/MT)

Parts Per Million (ppm)

Application Rate (L/MT)


NBPT (15%)

Duromide (19%)

585 NBPT +



302 NBPT +



5NBPT (258 ppm) and Duromide (327 ppm) are listed as individual active ingredients on the ANVOL label. Combined (NBPT + Duromide) the total active ingredient concentration is 585 ppm for urea and 302 ppm for UAN.

Choose Proven Protection Over Empty Promises

Don’t put your trust in low-rate formulations to protect your investment. Connect with a KAS representative today to learn more about how you can stabilize your nitrogen with our proven solutions that protect your nitrogen and your bottom line.

Dual Inhibitor Comparisons
For Urea For UAN
Product Active Ingredient (%) Application Rate (L/MT) Parts Per Million (ppm)4 Application Rate (L/MT) Parts Per Million (ppm)4
Arm U Advanced2 NBPT (30%)
DMPP (15%)
1.8 396 NBPT
1.1 242 NBPT
ContaiN Duo NBPT & Co-Polymer CA3 1 172 NBPT 0.75 129 NBPT
Excellis Maxx NBPT (8%)
DCD (2%)
1 96 NBPT
23 DCD
1 96 NBPT
23 DCD
Neon Air NBPT (30%)
DCD (15%)
2 694 NBPT
347 DCD
1 347 NBPT
174 DCD
Neon Soil NBPT (5%)
DCD (30%)
4 234 NBPT
1404 DCD
2 117 NBPT
702 DCD
Neon Surface NBPT (17%)
DCD (25%)
3 596 NBPT
876 DCD
1.5 298 NBPT
438 DCD
Nitrolizer Duo NBPT (15%)
DCD (15%)
3 473 NBPT
473 DCD
2 315 NBPT
315 DCD
Trident NBPT (10%)
DCD (10%)
Solvent & Co-Polymer Blend (80%)
1.57 173 NBPT
173 DCD
1.57 173 NBPT
173 DCD
SUPERU Preformulated Product 600 NBPT
8500 DCD
Not Applicable
Pronitridine (13%)
Not Applicable 9.46 596 NBPT | 1584 Pronitridine

2Active ingredient percentage is based on the 1:0.5 volume ratio mix of each component.

3ContaiN Duo label does not list out individual amounts of NBPT, Co-Polymers, Alcohols, Emulsifiers beyond the total sum of 100%. Calculations were based on the SDS.

4Calculation for parts per million (ppm) is based on the amount of active ingredient and product application rate listed on the product label and the bulk density as listed on the SDS determining active ingredient amount per tonne of nitrogen source.

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