OverviewYield ResultsFeatures & BenefitsTestimonialsResearchStorage & Handling

CENTURO™ Nitrogen Stabilizer

The CENTURO™ nitrogen stabilizer formulations — CENTURO and CENTURO A-PRO — feature the patented active ingredient Pronitridine, delivering highly effective below ground protection against leaching and denitrification in anhydrous ammonia and UAN applications. CENTURO A PRO is three times the active ingredient concentration and a lower use rate for improved operational efficiency, compared to the original CENTURO formulation. Both formulations are noncorrosive to the metals used in fertilizer equipment, making them easy to handle, gentle on equipment, and designed to help reduce downtime associated with equipment damage.

+6Bushels per AcreAverage Corn Yield Benefit over Spring-Applied Untreated NH3

+6Bushels per AcreAverage Corn Yield Benefit over Fall-Applied Untreated NH3

Yield Results

Optimized Yield Results

By keeping more nitrogen available for plant uptake, research has shown CENTURO can improve yields. Across a three-year study in Nebraska, Illinois and Missouri, fall-applied CENTURO treated ammonia increased corn yield by an average of 6 bu/acre compared to untreated fall-applied ammonia, and spring-applied CENTURO treated ammonia increased corn yield by an average of 6 bu/acre compared to untreated spring-applied ammonia.

Features & Benefits

Proven Efficiency. Unrivaled Protection.

Developed by Koch Agronomic Services, CENTURO nitrogen stabilizer was the first nitrification inhibitor to be registered by the Environmental Protection Agency (EPA) in 40 years. Today, CENTURO A-PRO is a significantly more concentrated formulation, featuring 44% of the active ingredient Pronitridine – more than three times the original CENTURO formulation (14%). These below-ground nitrogen stabilizers were designed to help reduce nitrate leaching and denitrification. Whether you're applying in the fall or the spring, the CENTURO formulations provide growers with unparalleled protection, ensuring that crops have access to nitrogen when they need it most.

monitoringNoncorrosive FormulaBoth CENTURO formulations are 100% noncorrosive to the metals used in anhydrous ammonia and UAN equipment, making it easy-to-handle, gentle on equipment and helping reduce downtime associated with equipment damage. The noncorrosive formulations can be stored for up to two years without harming equipment or reducing effectiveness.

securityEase of UseWith the ability to be added before, during or after the addition of anhydrous ammonia and UAN, and through the use of a side-kick system, the CENTURO formulations deliver the flexibility you need to run your operation with maximum nitrogen efficiency.

monitoringNitrogen Use Efficiency (NUE)There's nothing complicated about this fact: In 2025, CENTURO A-PRO increased total plant available nitrogen in the soil profile by 97% at VT in corn at 180 lbs. N/ac compared to untreated fall applied anhydrous ammonia.The underlying data was provided by Cropsmith, Inc. and Illinois Fertilizer and Chemical Association under a Research Trial Financial Support Agreement with Koch Agronomic Services, LLC. Neither these institutions, nor the individual researchers referenced, endorse or recommend any product or service. Improvements in yield and nutrient use efficiency may not be observed in all cases.

ac_unitFlexible Storage OptionsCENTURO and CENTURO A PRO nitrogen stabilizers are designed to fit seamlessly into existing retail operations. Both formulations are noncorrosive and do not require stainless steel storage tanks, providing flexible storage options and allowing product to be stored for up to two years without harming equipment or reducing effectiveness. With CENTURO A PRO’s higher concentration, retailers can store and handle less total product volume, helping maximize on site storage capacity and improve operational efficiency.

ac_unitHighly StableWith its subzero freeze point, CENTURO and CENTURO A-PRO will not freeze and does not require cold weather protective equipment as long as temperatures remain above -9 degrees Fahrenheit.

Justin SpethFacilities Manager, Muscatine Ag

,,The noncorrosive formula* of CENTURO is key to us and to our member-owners. That is a big selling point to PCA and customers that have their own storage tank. I'm able to tell them: 'This isn't going to hurt your tank.' We trust CENTURO in our tanks, it isn't hard on your equipment and it protects your investment. That's why we recommend CENTURO.

Doug GraberAgronomy Division Manager, Producers Cooperative Association

Jamie VeselyAgronomist, CCA, Tama Benton Cooperative

Real Customers, Real Results

Discover the next-generation nitrogen stabilizer, CENTURO, through the experiences of growers and retailers. With its patented active ingredient Pronitridine, CENTURO is an effective nitrification inhibitor that offers unparalleled flexibility in an easy-to-handle solution.

Storage & Handling

Unequalled Flexibility

Learn about the features, benefits and proper procedures of operating the nitrification inhibitor pump for CENTURO. Following the outlined procedures can help ensure an effective and efficient season for you and your customers.

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.