"So you raised wheat and corn. Your wheat ground and your oats ground you plowed, and you plowed it and sowed oats in the fall. And in the summer, you might plow that down and then put that back to wheat. You go from oats to wheat, from wheat to corn. Kind of a rotation like you do maybe somewhat today. Not so much today – why you go corn, corn, corn on a lot of acres. But, it was a rotation. So, a 10 or 15 acre field would be pretty good size, you know. It might take you, might take you a day and a half or two days to plow 10 acres with a couple plows, you know. You don't, you go three or four rounds and maybe rest the horses for a little while and start whittling. [Laughs.] So, it would take you a little while. Same way with corn why you had to cultivate your corn, you'd go several rounds with the cultivator and you'd rest your horses a little bit. You had to treat – your livelihood was your horses, so you took care of them."

Clyde Ehlers - How crops were rotated


Other Excerpts from Clyde Ehlers' Interview:

What is open pollinated corn?
How crops were rotated
What is a "bang board"?
Threshing day
Raising chickens
Harnessing a horse to a plow
Working on the farm