Calculated Replanting

June 2, 2009 07:00 PM

Pam Smith, Farm Journal Seeds & Production Editor
Remember the old Kenny Rogers song: "You gotta know when to hold ‘em and know when to fold ‘em.” Replant decisions have always been one of the toughest decisions farmers have to make, but there's no reason to be a gambler. A new online tool makes the decision easier.
"It's easy to get emotionally connected to the crop. We wanted to take that emotion out the decision,” says Bill Wiebold, University of Missouri extension agronomist.
You'll find an online worksheet is available to help calculate whether or not to replant a sparse corn or soybean stand at Wiebold cautions that the worksheet is designed for Missouri soils. Local soil conditions and weather should be considered.
"The figures in our replant worksheet are actually based on normal to lower yield environments,” he says. "Growers in high yield environments or good prairie soils may need to make some adjustments. We're actually working to adjust the tool to provide scenarios for deeper soils and/or irrigation environments.”
Still, the thought behind the decision is the same no matter where you grow. Expected yield, estimated market value of the crop, additional herbicide needed, machinery and labor expenses and seed expenses all need to be factored into the equation.


For More Information
Many states have similar decision making tools. You'll find Illinois' at: .

You can email Pam Smith at

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