The new precision farmers are hacking together a way of making food in which the virtual and physical worlds are so tightly bound that having his tractor steered by GPS-guidance with inch-level accuracy is ho-hum. Autosteering of farm machinery has exploded over the past several years, according to an annual survey by Purdue University’s Center for Food and Agricultural Business. In 2004, just 5 percent of agricultural retail outlets offered autosteering. In 2008, more than half did.
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