This "discovery" occurred four years ago. Obviously the plodding DuPont AG & NUT Pioneer research bureaucracy has had impeding issues and remains far away from commercialisation.
That said, perhaps there is substantial promise here for Pioneer. But keep in mind stronger and more aggressively creative organisations such as Syngenta and Monsanto are aiming for the same low-nitrogen corn.
Merely the perspective of one individual investor...funfun..