Even though farmers don’t blindly follow outmoded aphorisms of the trade, like measuring corn “knee-high by the Fourth of July”, many do still abide by old habits. Some apply manure annually in November regardless of weather or land conditions. Many do their best to adapt to the season’s rainfall, yet treat all their farmland the same way, regardless of how that land varies across acreage. And that hurts their bottom lines—and the environment. A new technology, however, has the potential to push farming forward by helping farmers grow more with less impact on the environment.