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BrownfieldAgNews reports:

Thunderstorms continue to roll across much of the Corn Belt, dropping heavy rain on already saturated soils.

Steve Eichenberger, an agronomist with Monsanto in northeast Iowa, says many fields in that part of the state received from seven to ten inches of rain last week. If the rain continues, Eichenberger says, shallow roots in corn could become a concern.

"We've been out there digging a lot of roots and for the most part it looks like we're having good rooting depth," Eichenberger says. "But it will be important for us to get some sunshine so those nodal roots that are in the process of developing right now can get down there and anchor the plant."

Another possible challenge is nitrogen loss.

"Any time you have much rainfall as we did last week, nitrogen loss can be a concern. We've got some tools right now to help guys determine whether or not they need some additional N," Eichenberger says. "The corn is getting pretty tall in some areas for the traditional nitrogen sidedressing, but if growers are looking to capture some additional yield, some additional N is always an option."

Weed pressure is also a concern. Eichenberger says the soggy fields are preventing farmers from spraying weeds in a timely fashion.

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