wheat ears at flowering stage

Utrisha® N

Biologicals

Utrisha® N provides a unique way to enable plants to capture nitrogen throughout the season.

Utrisha N is a nutrient efficiency biostimulant comprising of the natural bacteria, Methylobacterium symbioticum, that fixes nitrogen from the air and converts it into ammonium from within the plant.

Utrisha N provides a sustainable, supplemental source of nitrogen throughout the season. As a result, Utrisha N is an excellent option when looking to reduce the dependency on soil for nitrogen uptake.

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Utrisha N is approved for restricted organic use

 

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


About Utrisha N

Utrisha N catalyses the conversion of nitrogen to ammonium inside the plant, providing the plant with a constant supply of nitrogen throughout the season. 

 
Utrisha N is composed of an exclusive strain of naturally occurring endophytic bacteria, Methylobacterium symbioticum, that utilises methanol given off by the plant as an energy source to fix atmospheric nitrogen into ammonium using nitrogenase. The converted ammonium is then used by the plant to make essential amino acids essential for plant growth.

 

Because Utrisha N is a foliar applied biostimulant, the bacteria must gain access to the plant via the stomata. After colonisation, Utrisha N concentrates mainly in areas of growth in and around plant leaf cells. Utrisha N will take around one week to colonise a plant and will fix the equivalent to 3 kg/ha of applied nitrogen per week thereafter usually about 30 kg/ha per season (10-week crop). Therefore, once colonised, Utrisha N will provide a sustinable supplimental souce of nitrogen to the plant thoughout the season.

 

 

Benefits

Crops

Utrisha N is an effective solution for a range of crops. Utrisha N is intended for foliar application on authorised crops when at least 50% of the ground is covered by the crop. See the label for specific crops.

Technical Specifications

 

 

Utrisha® N

 

Rates333 g/ha
Water Volumes100 - 400 L/ha depending on crop type
Water QualityUse with water pH between 6 - 8
Pack Size3 kg 
Number of ApplicationOne application per crop

Applying Utrisha N

 

How to get the best from Utrisha N

Utrisha N's bacterium, Methylobacterium symbioticum, feed primarly off methanol produced by the plant during active metabolism. And because actively growing plants unaffected by stress will produce more methanol than stressed plants, Utrisha N should be applied to actively growing plants with sufficient plant biomass and good soil coverage (50% groundcover). 

 

M. symbioticum enters via stomata on the plant's leaves. Therefore, best results are obtained when Utrisha N is applied to the foliar of a non-stressed crop when stomata are opened. Apply Utrisha N in the morning or late afternoon/evening when greater number of stomata are open.

 

Utrisha N colonisation can be slowed down if temperatures are too cool, or if too hot, the bacterium can die. The optimum day temperature for application is between 10°C - 30°C (ideally 15°C - 25°C). Try to avoid frosts one week before and three days after application. 

 

The shelf life of Utrisha N is two years unopened. It is reccomended to use Utrisha N on the day of opening because the bacteria become activated once in contact with moisture. The shelf life of an opened pack can be up to one month, however this is difficult to achieve. 

 

Apply Utrisha N at a rate of 333 g/ha. Rates below 333 g/ha do not deliver 3 x 107 CFU/g – the number required to produce a viable colonisation and expected biostimulation effects.

 

Only one single application per crop. 

 

Use water with a pH between 5 and 8.

 

For more information, read the Utrisha N label here.

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