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Centuro Nitrogen Inhibitor

Farmers use anhydrous ammonia as a nitrogen source for crops. It’s popular due to its concentration and convenience, but it’s also prone to leaching. Nitrification inhibitors help keep the nitrogen in the field by slowing the oxidation of ammonium to nitrate. Nitrogen is then held in the soil longer, which means less nitrate leaching potential.

The last EPA-registered nitrification inhibitor was 40-years ago, so the chemistry hasn’t changed much. Until now. In July of 2018, the EPA approved a next-generation nitrification inhibitor for anhydrous ammonia.

Greg Schwab is the director of agronomy for Koch agronomic services. He says their product, which is called Centuro, is brand new technology.

"CENTURO offers highly effective nitrogen protection and unequalled flexibility in an easy-to-handle product," says Schwab. "It’s noncorrosive to the metals used in anhydrous ammonia and UAN equipment and can be added either into the tank or into the stream with a sidekick-type unit. It’s just going to be an overall improvement compared to what farmers are used to."

He says the new formulation can hold the nitrogen in the ammonium form three-times longer than without an inhibitor, so it helps improve nitrogen retention in the soil.

"For growers, Centuro helps keep fall-applied anhydrous ammonia more stable for a longer period of time, maximizing availability in the spring," he says. "With spring-applied anhydrous, Centuro minimizes potential losses to leaching and denitrification from spring rains prior to crop establishment."

Learn more about this new nitrification inhibitor technology

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