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Hill and Furrow

Current topics about crop production in Western Illinois, including field crops research at the NWIARDC in Monmouth.
Figure. Corn curling due to abnormally dry conditions at the Northwestern Illinois Agricultural Research and Demonstration Center on June 21, 2016.
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Crops need the forecasted rain

Posted by Angie Peltier - Weather
According to the U.S. Drought Monitor's June 14 report, the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) outside of Monmouth is part of the 36 percent of Illinois that is considered abnormally dry ( Figure ). This is the designation that is typically precedes a drought declaration. The below average rainfall totals and above average high...

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Figure. Root pruning caused by rootworms at the NWIARDC in 2014. Significant root pruning can cause yield loss and harvest difficulties.
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Corn rootworm egg hatch dictates when best to scout for root injury

To provide corn producers with a method to estimate peak corn rootworm egg hatch and when to best scout for root feeding damage, the Illinois State Water Survey's Illinois Climate Network calculates accumulated pest degree days . They use daily maximum and minimum bare soil temperatures (52 degree minimum) at a 4 i...

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Figure. Poison hemlock leaf. In 2016 poison hemlock plants have grown very tall (up to 7 ft), forming dense shrubs. These carrot relatives produce alkaloid compounds that are toxic to humans and other animals when consumed.
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2016 is a bumper year for toxic weeds

Driving down any Western Illinois road this spring one can't help but notice just how many very tall weeds there are growing in field edges and along fence rows. According to University of Illinois USDA Weed Ecologist Dr. Adam Davis, every weed species has specific germination cues, or moisture and temperature fluctuations required for seeds to germinate and seeds of biennial plants to survive...

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Figure. Herbicide injury symptoms observed in soybean at the NWIARDC in 2016.
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Injury symptoms in soybeans from soil-applied pre-emergence herbicides

Herbicide injury symptoms have been widespread this year at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) in Monmouth - on corn and now on soybeans. Soybeans were planted on May 12 and May 1...

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Figure. Corn planted on different dates in 2016 at the NWIARDC. From Left to right is corn planted on April 5, April 15, May 5 and May 19.

Planting date and corn and soybean development

Corn and soybean planting date trials. Each year corn and soybean planting date trials are established at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) in Monmouth. Sunshine, adequate moisture and moderate temperatures are needed to drive the enzymatic reactions responsible for plant growth and development. Relationship betwe...

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Figure. Brian Mansfield, NWIARDC Research Agronomist,  programming the combine computer to collect yield,  moisture, and test weight data.

Farewell to Research Agronomist Brian Mansfield

Posted by Angie Peltier -
Brian Mansfield, the Northwestern Illinois Agricultural Research and Demonstration Center's Research Agronomist, last day was today. He is leaving to take a job closer to his home farm in Greene County and will be missed....

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Figure. Herbicide injury symptoms on corn at the Northwestern IL Ag R&D Center in May, 2016.
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Cold, Cloudy, Wet Weather May = Herbicide Injury in Corn in 2016

Injury symptoms on corn plants. While passing by on the way to plant a bulk soybean field on Tuesday, personnel at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) noticed that plants in one of the center's corn fields didn't look so hot ( Figures ). The crop was planted on April 16 and sprayed on April 25 before emergence....

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