But the new harvester is helping him adapt to a changing future. "We used to do about 250 acres of sweet potatoes. This year ...

“Using a potato harvester greatly reduces post-harvest loss because all the tubers are removed from the soil and there is minimal cutting and damaging,” said Tinga Manager Titus Musyoka.

This file photo shows newly harvested potatoes on a Dagen Heritage Farms field near Karlstad, Minn., moving from harvester to truck.

In-field yield mapping of root crops, such as sugar beet and potatoes, is tricky compared with grain crops, not least because of the added complication of ...