VIXERAN® is a proven bacteria-based technology that allows your crop to fix nitrogen directly from the atmosphere. This improves nitrogen use efficiency on your farm – a benefit to your crop and the environment.

Fill the gap between the crop's nitrogen supply and demand

There are many situations where it is not possible to meet the nitrogen demand of the plant. Much of the nitrogen added through fertiliser application for example, can be lost to the environment through volatilisation or leaching.

Applied in this peak demand stage, VIXERAN® supplies a reliable source of nitrogen to the crop.

What is VIXERAN®?

VIXERAN® is based on a bacterium called Azotobacter salinestris and is applied as a foliar treatment. Once added, it multiplies across the leaves and the roots, supporting the crops throughout the entire season.

Add a breath of fresh air to your fertiliser strategy.

Inside and Outside

Inside & Outside

  • Free-living nitrogen-fixing bacteria
    (Azotobacter salinestris strain CECT 9690)
  • Lives within the plant or in the soil
    Constantly fixing nitrogen from atmosphere
    Benefitting plant & rhizosphere


Protects & Surrounds

  • Forms cysts to survive hostile conditions
    allows a wider range of compatibility with crop protection products
  • Produces a protective biofilm around the whole plant
    Helping to maximise the colonisation process, protecting both plant and bacteria from harsh environmental pressures and harmful phytopathogens

Up and Down

Up & Down

  • Colonises the foliage
  • Colonises the root system
  • Colonising the whole plant gives more consistent benefits

Add a breath of fresh air to your fertiliser strategy

Developed with good agronomic principles

  • Proven in multiple environments, locations & crops
  • Evidence from R&D & field tests
  • Supported by Syngenta´s application & formulation experts

Formulated product for excellent foliar application

  • Easy to apply
  • Good compatibility
  • Rapidly colonises
  • Stays working for longer

  • Nitrogen is a KEY macro nutrient needed for growth & development of the crop

    Important for chlorophyll production & protein synthesis
  • 70% of the total N requirement for cereals is needed between GS21-39
  • Conventional cereals will respond to an increase in available soil nitrogen

    This is often done through the addition of nitrogen fertilisers
  • Applying no more than is required, helps to:-
    • Protect the environment
    • Reduce the farm carbon footprint
    • Improves MOI

This is where VIXERAN® can help

VIXERAN® helps to optimise nitrogen fertiliser management in cereals in 2 ways:

  • COMPLEMENT Yield increase in standard nitrogen fertiliser regime
  • COMPENSATE Potential yield compensation in nitrogen reduction regime

Trials have shown VIXERAN® can replace around 30 kgN/ha*

VIXERAN® compensatory benefits in wheat

(Reduced N-inputs vs 100% fertiliser)

Nitrogen Reduction (KgN/ha) 2022 EU Trails: 32

VIXERAN® complementary benefit in wheat

(100% fertiliser +/- VIXERAN®)

Strain: Azotobacter salinestris Strain CECT9690
Formulation: Solid, powder
Dose: 50 g/ha
Time of application: Apply during periods of active crop growth. Cereals GS21-31
Nitrogen Strategy: Complement – Can be used with all cereal crops*

Compensate – Can be used with all feed quality Cereal crops*
Application: Foliar
Action: Biological N-fixing (leaves / roots / rhizosphere)
Shelf-life: 24 months(at room temperature); longer in cold storage

*Consult a FACTS Qualified Adviser for advice and guidance on nitrogen applications.Trials have shown VIXERAN® can replace up to 30 kgN/ha based on a reduction from the standard 100% nitrogen RB209 recommendation.

Pulses provide their own nitrogen for growth and development... how can VIXERAN® help?
Understanding the relationship pulses have with the rhizobium in the nodules, highlights why VIXERAN will help!

  • Nitrogen fixing nodules are normally formed 3-5 weeks post emergence and start to fix nitrogen as soon as they are formed.
  • Around the time of pod filling the nodules will gradually senesce and therefore stop fixing nitrogen.
  • However, pulses are a great source protein and the demand for nitrogen is highest exactly when the nodules have senesced off, which means the plant robs the required nitrogen from leaves.
  • This saps the plant of its photosynthetic yield building potential.
  • By supplementing the nitrogen-need with VIXERAN®, it reduces the burden on the leaves, allowing the plant to carry on photosynthesising and so increasing yield

Strain: Azotobacter salinestris Strain CECT9690
Formulation: Solid, powder
Dose: 50 g/ha
Time of application: Apply during periods of active crop growth. Pulses GS14-60 (Optimum 14-18)
Application: Foliar
Action: Biological N-fixing (leaves/roots/rhizosphere)
Shelf-life: 24 months (at room temperature); longer in cold storage

VIXERAN® Product Information

To find out more information on the product label, safety data sheet and compatibility list click below

Find Out More