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1 Virginia Tech and adapted from volatilization measurements made by Hunter Frame, VA Tech (2016) under Research Trial Financial Support Agreements with Koch Agronomic Services, LLC and neither the university, nor the individual researchers referenced, endorse or recommend any product or service.

2 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.

3 Iowa State University and University of Missouri under a Research Trial Financial Support Agreement with Koch Agronomic Services, LLC. Neither the universities or institutions, nor the individual researchers referenced, endorse or recommend any product or service. Improvements in nutrient use efficiency, yield and nitrate leaching may not be observed in all cases.

Privacy Policy · Do Not Sell or Share My Personal Information · California Supply Chain Transparency · Modern Slavery Statement · Terms of Use · Patent Information

AGROTAIN™, the AGROTAIN logo, ANVOL™, the ANVOL logo, CENTURO™, the CENTURO logo, ARMOUR™, the ARMOUR logo, OPTRIENT™, the OPTRIENT logo, N-TEGRATION™, the N-TEGRATION logo, SUPERU™, and the SUPERU logo, TRIBUNE™, the TRIBUNE logo, SYNTHOS™, the SYNTHOS logo, NUTRICARE™, the NUTRICARE logo, WOLF TRAX™, the WOLF TRAX logo, PROTIVATE™, the PROTIVATE logo, 3-TRAX™, DDP™, CROP MIX™, NU-TRAX™ and EVENCOAT™ are trademarks of Koch Agronomic Services, LLC. Koch, the Koch logo and Principle Based Management™ are trademarks of Koch IP Holdings, LLC. © 2025 Koch Agronomic Services, LLC. All Rights Reserved.

1. EPA EEF Challenge Submission data: 30% reduction - corn (Chatterjee et al, 2016); 34% reduction - corn (Chatterjee et al, 2016); 45% reduction - corn (Yang et al, 2016); 35% reduction - corn (Eagle et al, 2017); 48% reduction - irrigated no-till corn (Halvorson et al, 2010); 53% reduction - semi-arid irrigated corn (Dugan et al, 2017); 43.8% reduction - sandy loam soil (Awale and Chatterjee, 2017).

The data and material contained herein are provided for informational purposes only. No warranty, express or implied, is made including, but not limited to, implied warranties of merchantability and fitness for a particular purpose, which are specifically excluded. Results may vary based on a number of factors, including environmental conditions. Before use, consult the product packaging and labeling for information regarding the product's characteristics, uses, safety, efficacy, hazards and health effects.

Not all products may be available in your jurisdiction.

CENTURO is not registered for sale or use in all jurisdictions. In the United States, contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Results may vary based on a number of factors, including environmental conditions. Improvements in nutrient use efficiency, yield and nitrate leaching may not be observed in all cases.

OPTRIENT MoCo-Ni is not registered for use or sale in all states.

PROTIVATE NU5-LUX is not available for sale, use or distribution in California.

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Latest Resources

October 6, 2025

Fall Applications, Spring Payoff: Making Nitrogen Work Harder

Nitrogen Loss Doesn’t Wait for Spring

“Freeze-thaw cycles, snowmelt and spring saturation all create conditions where un-stabilized nitrogen just doesn’t stay put,” says Zach Leier, territory business manager, North Dakota. “With fertilizer prices high and margins tight, even modest loss can have a meaningful financial impact.”


While frozen soils may seem to “lock in” nutrients, the reality is different. Volatilization, leaching and denitrification can occur during fall thaws and again as soils warm in spring. Without protection, fall-applied nitrogen faces multiple loss pathways that reduce return on your fertilizer investment.

  • Volatilization: Urea granules at the soil surface can convert to ammonia gas and escape.
  • Leaching: Excess moisture during snowmelt can move nitrate below the root zone.
  • Denitrification: Saturated soils can transform nitrate into nitrogen gases, lost to the atmosphere.

“I tell growers the same thing every fall: stabilizers aren’t just another input; they’re insurance for your nitrogen investment,” Leier explains. “Stabilizers make sure your fertilizer dollars will still be working for you when the crop needs them in spring.”

Making Fall Nitrogen Count

Stabilizing fall-applied nitrogen is about more than protecting yield; it’s about protecting your bottom line. When you use stabilizers, you:

  • Safeguard your nitrogen investment against loss during fall thaws and spring snowmelt.
  • Improve nitrogen use efficiency, giving crops greater opportunity to access applied nutrients.

Stabilizers: A Proven Solution for Fall N Applications

Koch Agronomic Services offers solutions designed to protect nitrogen through the off-season, keeping more of it available for your crop in spring.

  • ANVOL™ nitrogen stabilizer helps minimize volatilization losses in broadcast applications. Its patented active ingredient, Duromide, extends protection longer than NBPT alone, helping keep nitrogen in the soil where it belongs.
  • SUPERU™ premium fertilizer provides built-in protection against volatilization, denitrification and leaching. With both urease and nitrification inhibitors in a ready-to-use granule, SUPERU delivers consistent coverage across the field.
  • CENTURO™ nitrogen stabilizer minimizes below-ground losses from leaching and denitrification. With its Pronitridine technology and noncorrosive formulation, CENTURO delivers flexible protection that’s easy to handle and safe on equipment. 

Fall applications can be a smart way to spread out labor and equipment needs, but only if nitrogen is protected through to spring. By incorporating trusted products like ANVOL nitrogen stabilizer, CENTURO nitrogen stabilizer, and SUPERU premium fertilizer North Dakota farmers can be confident their nitrogen investments will deliver results when the crop needs it most.

Explore the full KAS stabilizer portfolio at TheNitrogenWin.com

Resource Categories
Fall FertilizerANVOLSUPERUCENTUROArticleNutrient ProtectionAnhydrousUANUrea

For many North Dakota growers, fall nitrogen application has become a practical way to get ahead of the busy spring season. Post-harvest conditions often mean easier field access, more equipment availability, and reduced labor bottlenecks. Applying nitrogen in the fall helps set the stage for timely spring planting and a strong start to the growing season.