I WANT YOU
TO HAVE HARDER
WORKING NITROGEN

CENTURO™ UREA

CENTURO™ UREA is urea treated with CENTURO™ nitrogen stabiliser – a next-generation nitrification inhibitor from Koch Agronomic Services featuring the patented active ingredient, Pronitridine. It delivers highly effective
below-ground protection that keeps more of your nitrogen in a stable ammonium form for longer.

WHAT IS A NITRIFICATION INHIBITOR?

Nitrification inhibitors slow the conversion of ammonium to nitrate. In the
nitrate form, nitrogen is susceptible to leaching and denitrification.
By slowing the nitrification process, more nitrogen is kept in a stable form for
longer, making it more readily available for when plants need it.
CENTURO slows the conversion of ammonium to nitrate and can hold the
nitrogen in ammonium form three times longer than without an inhibitor.

Three key benefits of a highly effective nitrification inhibitor

  • Minimise nitrogen loss from leaching and denitrification

  • Optimise nitrogen use efficiency & yield

  • Reduce nitrous oxide emission potential

HOW IT WORKS IN THE SOIL

When urea or other nitrogen containing fertilisers are applied to the soil, much of the nitrogen converts or transforms to ammonium. In this form, nitrogen is readily available for uptake by the crop. Ammonium will then convert to nitrate in about two weeks depending on the soil type and temperature. Slowing the conversion of ammonium to nitrate is key to preventing nitrogen loss – ammonium will bind to the soil whereas nitrate can move with water and is prone to loss through leaching and denitrification.

RESEARCH PROVEN FORMULATION

Bars with diffrent letters indicates statistical differences (LSD 0.1)

Treating urea with CENTURO significantly increased
maize yield by 1800 kg/ha (21%) compared to
untreated urea.1
Trial Details:

  • 2021/2022 field study on maize

  • 100 kg N/ha as urea applied at V6

  • Soil: Ultisol, pH: 6.0; 1.2% OM, 12% clay

Bars with diffrent letters indicates statistical differences (LSD 0.1)

Treating urea with CENTURO significantly increased
maize nitrogen uptake by 19 kg N/ha (15%) compared to
untreated urea.1
Trial Details:

  • 2021/2022 field study on maize

  • 100 kg N/ha as urea applied at V6

  • Soil: Ultisol, pH: 6.0; 1.2% OM, 12% clay

CENTURO UREA REDUCED N2O EMISSIONS OVER UNTREATED UREA

2025 QUEENSLAND UNIVERSITY OF TECHNOLOGY

Total N2O emissions from a heavy topsoil from Gatton, QLD
incubated for 34 days after fertiliser application.

Bars with diffrent letters indicates statistical differences

In a laboratory trial:
  • CENTURO™ UREA significantly reduced N2O emissions over untreated urea by 70%
  • Use of CENTURO™ UREA resulted in N2O emissions not significantly different from the unfertilised control
  • Laboratory incubation study conducted at Queensland University of Technology, Australia
  • Nitrogen rate equivalent to 281 kg N/ha
  • Soil: Vertosol
  • Incubation conducted for 34 days after fertiliser application at 22°C and 85% WFPS (water-filled pore space)

The underlying data was provided by Queensland University of Technology (QUT) under a Research
Trial Financial Support Agreement with Koch Agronomic Services, LLC. Neither QUT, nor anyone
conducting research on its behalf, endorse the product(s) or use of the product(s).

Q + A

WHAT IS A NITRIFICATION INHIBITOR?

Nitrification inhibitors slow the conversion of ammonium to nitrate. In the nitrate form, nitrogen is susceptible to leaching and denitrification. By slowing the nitrification process, more nitrogen is kept in a stable form for longer, making it more readily available for when plants need it.

Pronitridine is the active ingredient in CENTURO™ U-PRO nitrogen stabiliser, which offers highly effective below-ground nitrogen protection.​

Pronitridine contains both small and larger molecules, designed with a portion that structurally mimics ammonia, allowing it to compete with ammonia for the active site of Ammonia Monooxygenase (AMO), which slows nitrification.​

Research suggests Pronitridine acts by both temporarily blocking the active site of AMO and by binding to the AMO enzyme in Nitrosomonas bacteria, which temporarily alters the shape of the active site. 

  • Minimise nitrogen loss from leaching and denitrification
  • Optimise nitrogen use efficiency & yield
  • Reduce nitrous oxide emission potential

By slowing the nitrification process, more nitrogen is kept in a stable form for longer, making it more readily available for when plants need it. Please refer to trial results on this website for examples

Currently, CENTURO™ Urea is available ex Brisbane, Newcastle and Geelong terminals. Please contact your Koch Fertiliser Australia Marketer to learn more.

MAKE YOUR NITROGEN WORK HARDER

MAKE YOUR NITROGEN WORK HARDER

With its new concentrated formulation, CENTURO™ allows for a low application rate, and holds your nitrogen in ammonium form for up to three times longer thanks to the secret weapon (or patented active ingredient) Pronitridine

Deploy CENTURO™ and make your nitrogen work harder today

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