To hear more audio stories from publications like The New York Times, download Audm for iPhone or Android.GONZALES, Calif. — It looks like a century-old picture of farming in California: a few dozen Mexican men on their knees, plucking radishes from the ground, tying them into bundles. But the crews on Sabor Farms’ radish patch, about a mile south of the Salinas River, represent the cutting edge of change, a revolution in how America pulls food from the land.For starters, the young men on their knees are working alongside technology unseen even 10 years ago. Crouched behind what looks like a tractor retrofitted with a packing plant, they place bunches of radishes on a conveyor belt within arm’s reach, which carries them through a cold wash and delivers them to be packed into crates and delivered for distribution in a refrigerated truck.The other change is more subtle, but no less revolutionary. None of the workers a …
