Learn More

 
Skip to main content
Koch Agronomic Services Logo
SolutionsKnowledge CenterAboutRetailers & Reps
Labels / SDS
Contact
Labels / SDS
Contact
US
USCAINT
Map of the World

Find a Rep or Retailer

With our network of knowledgeable representatives, retailers and distributors, you can be confident you will get the best solution for your unique needs. Find your nearest Koch Agronomic Services, LLC, representative.

 
Contact Us
Find a Rep or Retailer

Connect with Koch Agronomic Services

Facebook IconLinkdein IconTwitter IconYouTube Icon
Koch logo

Solutions

AGROTAIN™PHOSFORCE™WOLF TRAX™PROTIVATE™ANVOL™OPTRIENT™CENTURO™SUPERU™
Knowledge CenterPodcastsResearch & ReportsArticlesProduct Labels/SDSs
AboutPress ReleasesCareers
Retailers & RepsFind a Rep or Retailerpage links
US
USCAINT
Koch Logo

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.

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

image
 

Latest Resources

fertilizer in a trailerArticleExperts Answer Top Questions on Smarter Phosphorus Managementgrower looking at a handful of treated seed ArticleThe Spring Seed Enhancement Guide: 3 Things to Know Before You Plant wolf trax treated fertilizer in semi trailerArticleThe Evolution of WOLF TRAX™ DDP™ Micronutrients and What It Means for GrowersSPREADERArticle3 Factors to Consider When Selecting an Enhanced Efficiency Fertilizertractor in fieldArticleCombating Nitrogen Loss: A Dual-Action Approach to UAN Stabilization

December 21, 2023

Stabilizers Offer Top-Dress Applications Protection and Flexibility

Applying nitrogen in spring can prove challenging, but there are a number of things to keep in mind that can make top dressing beneficial. 

The top three for most growers are increasing nutrient use efficiency (NUE), operational flexibility and protecting that application until you get incorporating rainfall.

Nutrient Use Efficiency

When you follow the 4Rs of Nutrient Stewardship, you can improve the NUE. By selecting the right source of fertilizer, applying it at the right rate, at the right time and in the right place, you’re implementing best management practices. In some cases, top dressing nitrogen can be your best choice.

Top-dressing nitrogen during the growing season offers you the opportunity to work around limiting factors the weather might have caused for you prior to or at seeding time.

"When growers apply more of their season total nitrogen as a top dress application and decrease their near-planting nitrogen amounts, they can get better nutrient use efficiency," said Matt Fryer, technical agronomist with Koch Agronomic Services (KAS). “Crop demand for nitrogen is generally low until the mid- to late-vegetative stage, so with top dressing, you’re increasing efficiency by putting it in the right place and at the right time when the crop really needs to utilize that nitrogen for growth and yield.”

Operational Flexibility

In addition to increasing NUE, top-dress applications can give growers more flexibility. 

"Typically, top-dressing is faster than knifed in UAN and they can cover more acres in a shorter period of time," said Fryer. “You can fly on urea or broadcast your nitrogen source using ground equipment and it’s getting it on the field faster, so that can be attractive to growers.”

Evan King, another technical agronomist for KAS, also pointed out that growers have a hard enough time covering the acres they need to cover.

"Operational efficiencies are a huge benefit for growers using top-dress applications," King said. “However, weather is unpredictable and even when we have good forecasts, they don’t always hold true. By utilizing stabilizers along with top dressing nitrogen, growers can take advantage of that extended window of time to help prevent losses before incorporating rainfall.”

Protection Against Volatilization

As always, when applying fertilizer — timing is everything.

"The main drivers for volatilization losses are moist soils, high temperatures and a lack of incorporating rainfall," said King. “In those conditions, we can lose as much as 40% of the plant nitrogen over the first three days.”

Fryer points out that you can watch the weather forecast, but getting the right amount of rain at the right time is out of your hands. You need to protect your urea or UAN investment from volatilization losses with ANVOL™ nitrogen stabilizer from KAS.

"Especially on dry land production, whether it's wheat or corn, ANVOL is going to be a no-brainer for top dressing urea or UAN," said Fryer. “If you don't get a timely rain, which rarely occurs, ANVOL will be there to protect your nitrogen.”

Featuring the patented active ingredient Duromide, ANVOL delivers the longest-lasting urease inhibitor protection over a wider range of soil environments, protecting your nitrogen investment against ammonia volatilization and preserving it for crop uptake.

"In locations that planted late, there will be a shift to in-season fertilizer application," said King. “From year to year, there are always growers who find themselves in this situation, making protection for their nitrogen even more vital to the success of that year’s yields.”

To learn more about top-dress applications with ANVOL, contact your local KAS sales representative.
 

Resource Categories
Spring FertilizerANVOLArticleNutrient ManagementUANUrea

Your crop is in the ground and the growing season has finally begun. There will be hundreds of decisions for you to make throughout the year as you strive for optimal yield from corn and wheat fields.