wheat ears at flowering stage


BlueN™ provides a unique way to enable plants to capture nitrogen throughout the season.

BlueN is a nutrient efficiency biostimulant.  The natural bacteria, methylobacterium symbioticum, fixes nitrogen from the air and converts it for the plant.​

BlueN enters the plant through the stomata and colonises in between the leaf cells. ​

It then converts N2 from the air into ammonium, resulting in a constant supply of nitrogen to the plant.

No plant energy is required for this process.​

BlueN provides a sustainable, alternative source of nitrogen that reduces dependency of nitrogen uptake from the soil and ensures the plant has access to nitrogen all season long.

For more info call our Technical hotline:  0800 689 8899, e-mail: ukhotline@corteva.com or submit an enquiry here

About BlueN


BlueN nutrient efficiency biostimulant is an effective solution for specific crops - see the label for specific crops. 

Technical Specifications

Application - how to get the best from BlueN

Apply to actively growing plants unaffected by stress.

  • Apply in the early morning when greater number of stomata are open.
  • Optimum day temperature for application is between 10°C -30°C.
  • Apply with sufficient plant biomass when the crop presents good soil coverage.
  • Use water with a pH between 5 and 8.


333g / ha ​


Water Volumes:
100-400 L/ha depending on crop type

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