Knowledge Center | Koch Agronomic Services
Knowledge Center | Koch Agronomic Services
Making the Most of Late Summer & Early Fall Wheat Nitrogen Applications
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As fall approaches, many growers across the Great Plains will be taking to the field to start late summer and early fall nitrogen applications on wheat acres.

Nitrogen is a critical component in wheat production to boost yields and grain quality but is also needed to ensure proper head development and stimulation of tillering. In addition, dual-purpose wheat used for grazing during the fall and winter requires adequate amounts of nitrogen needed for ample biomass production and for re-growth during and after the grazing period1. And while this is a great time for nitrogen applications from an operational perspective, it comes with varied weather conditions and the risk of nitrogen loss, making it beneficial to use a nitrification inhibitor such as CENTURO® nitrogen stabilizer.

CENTURO is a nitrification inhibitor that growers can now use with anhydrous ammonia and UAN to help protect against nitrogen loss from leaching or denitrification. Nitrification inhibitors are an important tool for protecting applied nitrogen and keeping the valuable nutrient available in the root zone in the ammonium form where it’s less susceptible to loss.

By slowing the conversion of ammonium to nitrate, CENTURO, as shown in the graph below, can hold nitrogen in the ammonium state up to three times longer than untreated ammonia2. With late summer and early fall-applied anhydrous, more ammonium will be held in the soil through to the spring, maximizing availability for wheat crop uptake.


By keeping more nitrogen available for plant uptake, research has shown CENTURO can improve nutrient-use efficiency and yields. Using CENTURO also follows the recommendation of the 4R Nutrient Stewardship Initiative, by keeping nutrients available when crops need them, and where the crops can use them. When it comes to protecting fall-applied nitrogen, don’t leave it to chance – protect your investment with CENTURO. 

To learn more about CENTURO, visit or contact your KAS rep. 

For the timing of anhydrous fall applications we recommend following university extension best management practices. 

1Fall Nitrogen Requirements for Winter Wheat – Oklahoma State University Extension Services
2The 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 4R approach is endorsed and supported by the International Plant Nutrition Institute, The Fertilizer Institute, The Canadian Fertilizer Institute and the International Fertilizer Industry Association. To learn more about the 4R Nutrient Stewardship visit their website at:
CENTURO is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. CENTURO® and the CENTURO logo are trademarks of Koch Agronomic Services, LLC. Koch and the Koch logo are trademarks of Koch Industries, Inc. © 2020 Koch Agronomic Services, LLC.

Article Categories: Blog Icon BLOG, US
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With several regions across the U.S. receiving little precipitation over the last few months, many growers may be questioning how the lack of rain may impact their fall anhydrous ammonia (NH3) applications.
Article Categories: Blog Icon BLOG, US
The Field Notes podcast series from Koch Agronomic Services (Koch) will break down the science and technology behind agronomy to help growers do more with less. Crop science experts and others in the agriculture industry will discuss topics ranging from nitrogen loss and soil health to ways growers can increase operational efficiencies.
Article Categories: Field Notes, Nitrogen Loss, US, CANADA