If you can envision a giant “Do Not Disturb” sign stretching over nearly 10,000 acres of northeastern South Dakota farmland, you’ll begin to understand the no-till philosophy of Cal and Erik Hayenga.
When Erik Hayenga's grandfather (Cal’s father) quit raising corn in the mid-’60s because it wasn’t profitable, 40 bushels was a lot more common than 50 bushels per acre and that’s about as high as it went.
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