Bacterium converts air nitrogen for plants

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Published: November 18, 2021

Kirsten Ratzlaff of Corteva said Utrisha N boosts a plant’s nitrogen efficiency. | Screencap via Twitter/@CortevaCA

Corteva bioproduct aids plants’ nitrogen efficiency in the mid to latter half of the growing season

Corteva Agriscience Canada has stepped into the agricultural biologicals market with the launch of Utrisha N, a nutrient efficiency biostimulant.

Biostimulants are a subset of biologicals and trigger a plant’s natural processes to enhance its performance.

Kirsten Ratzlaff of Corteva said Utrisha N boosts a plant’s nitrogen efficiency.

Corteva does not put a number on the amount of nitrogen the biostimulant can replace, if any, and has not released prices for the product. However, Ratzlaff said Corteva is conducting research in Canada to better understand how it performs here.

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“The role of Utrisha N is to provide a sustainable, supplemental source of nitrogen and really a continuous source of nitrogen throughout the growing season,” Ratzlaff said.

“It’s really a supplement to our existing nitrogen program to ensure the plant has what it needs, when it needs it, throughout the growing season. So, it works hand in hand with our conventional fertilizer practices.”

She said the product reduces dependency on nitrogen uptake from the soil and will be most helpful to plants in the mid to latter half of the growing season.

“That’s where Utrisha N comes in, to provide that supplement and that sustainable natural source continuously through the plant’s life cycle without using any plant energy,” Ratzlaff said.

It will “continuously pull nitrogen from the air and fix it through the plant. It will just always have the nitrogen that it needs, setting that crop up for optimal yield.”

Utrisha N is a natural bacterium that colonizes leaf cells after it enters the plant through the stomata, she explained. It then converts nitrogen from the air into a usable state for the plant.

The product is foliar applied, and for best results should be applied early in the morning when the greatest number of plant stomata are open.

“Crop staging varies by crop, but essentially you want to make sure that there is sufficient plant biomass so that Utrisha N can be taken in by healthy plants or healthy leaf material,” Ratzlaff said.

“In canola, our application timing is four leaf to bolting, in cereals it is four leaf to jointing and in corn and soybeans the application timing is V4 to V8.”

Corteva is studying whether the biostimulant can be tanked mixed with herbicide, fungicide or with foliar-applied nutritional products.

To overcome suspicion some growers have toward biological-based products, Ratzlaff said Utrisha N and other products Corteva adds to its biological portfolio will undergo years of testing to make sure they work.

“Our Corteva biological portfolio pipeline is full of exciting developments. We’re investing in multiple subsets of biologicals, so biostimulants like Utrisha N but also in the biocontrol products and pheromones,” Ratzlaff said.

About the author

Robin Booker

Robin Booker

Robin Booker is the Editor for The Western Producer. He has an honours degree in sociology from the University of Alberta, a journalism degree from the University of Regina, and a farming background that helps him relate to the issues farmers face.

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