At 92, Illinois farmer Sam Harms still manages to get into his family's John Deere equipment to help out around the fields, according to a recent report in the Bloomington Pantagraph.

Harms started working on farms back in the 1920s. Since then, the biggest change he has seen is how much quicker operations are run.

"Now it's mostly hustle-bustle," Harms told the paper. "It's always hurry up, hurry up, hurry up."

Although he no longer manages his family's farm in Central Illinois, he still puts his time in by clocking 12-hour days during the harvest. His sons are now in charge, but Harms keeps at it by hauling grain.

Harms told the paper that farming technology has made a big difference. Back in 1941, his farm produced about 17 bushels an acre for soybeans. With genetically modified seeds, this year's crop will come to 60 bushels an acre.

While seed genetics have helped, farmers have also adopted other forms of advanced farming. GPS, like John Deere's GreenStar line of products, can help farmers perform pinpoint planting, thereby reducing waste.