Utrisha N a sustainable tool to optimize nitrogen fertilization of crops

Utrisha N a sustainable tool to optimize nitrogen fertilization of crops

Magalí Torés and Bernardita López, both market developers at Corteva Agriscience, wrote this interesting article about the Utrisha N product, its applications and benefits.

It is no news that the way of doing agriculture has had to adapt to the challenges facing the world today: climate crisis, and a market with more restrictions for its production in terms of seeking technologies with low impact on the environment. This is why the use of biological products has become increasingly important, since they are tools that allow for more sustainable agriculture.

Magalí Torés Achilles, market developer Corteva.

Utrisha N is a novel technology, based on a free-living endophytic bacteria: Methylobacterium symbioticum, this fixing bacteria reduces N2 atmospheric to ammonium (NH4+) through the enzyme nitrogenase. This biological solution allows us to carry out an effective management of nitrogen in relation to the time of application, the rate of use and the location of the nitrogen itself.

Through foliar applications of Utrisha N, the bacteria enters via the stomata through aerial plant tissues, rapidly colonizing the entire plant. It has chromophores that have the property of reflecting light towards the chloroplast, intensifying photosynthesis (which additionally increases methanol production, greater mobilization of iron and molybdenum), to finally constantly supply nitrogen to the actively growing plant.

This is how the genetic expression of the bacteria Methylobacterium symbioticum It allows a metabolic response of the plant (generating an increase in photosynthetic activity), which in turn generates a phenotypic response in the crop, finally allowing an agronomic response. 

Utrisha N works through a self-regulating mechanism to deliver nitrogen to the plant on demand, without the risk of overproduction. It allows us to consider the option of fertilizing in a sustainable way by providing the necessary contributions required by the crop, optimizing the use of nitrogen and in turn contributing throughout the crop cycle, since this bacteria, once it enters the intercellular spaces of the plant, is able to continue increasing its population over time inside the plant.

Bernardita López Fernández, market developer Corteva.

It is currently listed by the Organic Materials Review Institute (OMRI) as suitable for certified organic production systems.

With a very broad label, it is permitted for use at a dose of 333 g/ha in vegetables, extensive crops and grasslands, and at a dose of 500 g/ha in fruit trees and vines.

As general recommendations and for the optimization of the product to be applied, Utrisha N should be applied at foliar level during the active growth phase and after having received sufficient initial fertilization. It requires a rain-free period of 1 hour and the use of water with chlorine content < 2 ppm, apply at temperatures below 25°C and consider compatibility with the products to be applied.

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