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Small Grains in the Corn Belt

The landscape across the Corn Belt is dominated by just two crops – corn and soybeans. This system is inherently leaky; crops grow during the summer months and leave the land uncovered the remainder of the year when soils are vulnerable to precipitation and wind. Extending the rotation with a cool season small grain (oats, wheat, rye, triticale) coupled with a cover crop can keep the land covered year-round and offer an essential unlock and speedier path to profitable regenerative agriculture farming systems.

Small grains were once a common part of Midwest cropping systems but are now scarce in the Corn Belt. Markets have disappeared as animals moved away from the farm and the feed system became optimized for corn and soy. Today farmers want to diversify and grow small grains but cite the lack of markets as their biggest barrier to bring small grains back into their rotation system.

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Do Cold Temps Impact Emerging Corn & Soybeans? | Pioneer Agronomy

Video: Do Cold Temps Impact Emerging Corn & Soybeans? | Pioneer Agronomy

A cold snap swept across west central Minnesota and eastern South Dakota, bringing frost, fog, and temperatures dipping into the 20s—raising urgent questions about early crop damage.

Pioneer Agronomist Eric Rice breaks down what those overnight temperatures could mean for emerged corn and soybeans, how to assess frost injury, and why patience is key before making any replant decisions. Learn the critical differences between corn and soybean growing points, what cosmetic vs. serious damage looks like, and how last week’s high winds may also be influencing what you’re seeing in the field.

Watch for:

• Frost thresholds for early-season crop damage

• Why corn may be more resilient than it looks

• Soybean growth stages and frost susceptibility

• How to evaluate brittle stems and discolored tissue

• Why waiting 4–5 days before assessing stand loss matters

• When to contact your local Pioneer agronomist or sales representative