Corteva™ Soil Health

What is Optinyte™ Technology?

Optinyte™ technology is the brand name used for products that contain Nitrapyrin as the nitrogen stabilizer and Corteva agriscience formulation technology. This proprietary and highly effective nitrogen stabilizer is the technology in well-known products including N-Serve™, Instinct™, N-Lock™, eNtrench™ and Vindicate™ for example. Products containing Optinyte technology can be used with pre-plant, at-plant and in-crop applications of nitrogen fertilizer and used with liquid manure, bio-slurry, and granular fertilizers such as urea and NPK, ammonium nitrate or liquid forms of nitrogen fertilizer, such as 28% or 32% UAN. Products with Optinyte technology have shown agronomic, economic and environmental benefits when utilized in a wide range of crops including: corn (maize), wheat, canola (oilseed rape), cotton, rice, sugarcane, tree nuts and vegetables. Formulations containing Optinyte technology are currently approved for use in over 25 countries with future plans to expand to additional countries.

N-Lock™ with Optinyte™ technology is a proven nitrogen management tool that provides farmers with the rules of the Nitrates Directive. Optinyte technology has been shown to maximize the yield potential of their crop while reducing nitrogen leaching and reducing greenhouse gas emissions.

How does Optinyte™ Technology Work?

Nitrogen stabilizers with Optinyte™ technology slow the nitrification process in soils by inhibiting ammonia monooxygenase, an enzyme found in Nitrosomonas bacteria that catalyzes and an important step in the conversion of ammonium into nitrate. As a result, the growth rate of Nitrosomonas bacteria and the associated ammonium metabolism is reduced. Thus the soil nitrogen is stabilized; it remains in the protected ammonium form in the root zone for a longer period of time allowing for better crop utilization as opposed to being lost into groundwater through leaching or the atmosphere through denitrification.

What are the Environmental Benefits? 

Corteva™ Agriscience nitrogen stabilizers, with Optinyte™ technology, are proven to protect nitrogen fertilizer which benefits both the environment and the crop. The environmental and agronomic benefits of Optinyte technology are documented in many peer-reviewed scientific publications and supported by more than 40 years of on-farm use. A foundational study published in 2004 (Wolt) summarized the benefits of Optinyte technology, through a meta-analysis. The study was based on published data from 186 field trials primarily conducted in US corn (maize) but also included data from other crops and geographies. Conclusions from this meta-analysis were that, on average, use of Optinyte technology resulted in a 51% reduction of nitrous oxide (N2O) emissions and a 16% decrease in soil nitrogen leaching. The stabilization of nitrogen resulted in a 7% increase in crop yield. These results were confirmed in a second meta-analysis published in 2015 (Qiao). In this study, the authors collected data from peer-reviewed studies published between 1984 and 2013 covering many geographies and crops including barley, corn (maize), pasture grass, rice, vegetables, and wheat. In addition to confirming the environmental benefits, the Qiao meta-analysis demonstrated using a nitrification inhibitor increased farmer revenue by approximately 8.95% even after accounting for the cost of using the nitrification inhibitor. Qiao concluded, “Our findings showed that nitrification inhibitors could create a win-win scenario that reduces the negative impact of nitrogen leaching and greenhouse gas production, while increasing the agricultural output.

 

Nitrification Inhibitors: A Win-Win Scenario

As an example of ongoing commitment to sustainable chemistry, Corteva™ Agrisciences reported life-cycle assessments (LCA) for Optinyte™ in Australian wheat farmingand corn farming in the United States. These LCAs were holistic approaches to examining impacts over the complete life cycle of the product. In addition, the Optinyte LCA for corn farming was peer reviewed following ISO standards 14010 and 14044. The LCA results showed that potential benefits of using Optinyte far exceed the potential burdens created by its supply. Specifically the LCAs reported an 11-32% average reduction in life-cycle greenhouse gas emissions based on county and national data, with and without irrigation and drying. In addition, both assessments indicated that a reduction of marine eutrophication potential was a likely result of employing Optinyte technology in these systems.

Growers and Expert View