I'm a bit confused after watching some YouTube videos about potato harvesting on large farms. The machinery at work on a large-scale potato farm is amazing, but it looked like the potatoes were growing right on top of the soil. There was no digging that I could see. Do commercial growers just grow them on top of the soil? I don't see how it would work. Is it a different type of potato than what home gardeners typically grow?
You can really see it at the 3:00 mark. The potatoes are just sitting on top of the soil, waiting to be harvested.