Also see: Corn
Figure 1. University of Wisconsin researchers studied drilling cover crops into V5 corn. (Source: University of Wisconsin Integrated Pest and Crop Management)
Figure 1. University of Wisconsin researchers studied drilling cover crops into V5 corn. (Source: University of Wisconsin Integrated Pest and Crop Management)

Interseeding Cover Crops into Corn or Soybean

May 23, 2019
In some years it may be difficult to well establish a cover crop after corn harvest. This article surveys current research on interseeding into an established crop, further considerations, and how to test this practice on your farm.

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Wireworms

Scout Emerging Corn for Insects; Don’t Assume Protection

May 22, 2019
As corn begins to emerge, be alert to the potential for damage from early season insects such as cutworms, wireworms, white grubs, or other insects.

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Example of bioassay used for monitoring ECB susceptibility to Bt protein

First ECB Resistance to Bt Corn Reported in Canada

May 22, 2019
The first case of field-evolved resistance of European corn borer (ECB) to Bt transgenic corn has been reported in Canada. What does this mean for Nebraska corn farmers and how can they help maintain resistance here?

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(Photo by Nathan Mueller)
Photo by Nathan Mueller

Only 27% of Corn, 7% of Soybean Emerged

May 21, 2019
With several sunny days last week planting progressed with 70% of corn and 40% of soybeans now planted. Continued progress will likely be delayed in many areas where there was rain and even snow early this week.

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Figure 1. A research plot at the university’s Eastern Nebraska Research and Extension Center (ENREC) near Mead on May 13, 2019. The entire plot is covered with no-till corn residue. The west half also is covered with a November 17 planted cereal rye cover crop. Soil temperatures 2 inches deep were recorded in each half, but were essentially the same, so are averaged in this report.
Figure 1. A research plot at the university’s Eastern Nebraska Research and Extension Center (ENREC) near Mead on May 13, 2019. The entire plot is covered with no-till corn residue. The west half also is covered with a November 17 planted cereal rye cover crop. Soil temperatures 2 inches deep were recorded in each half, but were essentially the same, so are averaged in this report.

Soybean Germination/Emergence with April Planting Dates Relative to Coincident Air and Soil Temperatures in April and May

May 16, 2019
A closer look at air and soil temperatures in April and soybean germination and emergence from 10 planting dates did not find chilling injury, despite periods below 50°F. Further research is needed to better understand the imbibitional period in soybean.

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USDA NASS: Corn Planting at 46%, Soybean at 20%

May 13, 2019
As of Sunday 46% of the state's corn was planted, up from 35% last week, but well behind the five-year average of 72%. Approximately 20% of soybean had been planted, up from 14% last week, but well behind the average of 32%.

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Graph of corn and soybean market trends

Crop Marketing Plans with Yield Uncertainty

May 10, 2019
Farmers affected by early spring flooding likely have increased yield risk from changed soil characteristics, excess moisture, or late planting and may want to consider adjusting their plans for 2019 grain sales.

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Photos illustrating two points in rating system used to evaluate freeze damage to seedling corn. These show corn recovery from frost at V1-V2 growth stage in 2014 near Craig
Figure 1. Photos illustrating two points in rating system used to evaluate freeze damage to seedling corn. These show corn recovery from frost at V1-V2 growth stage in 2014 near Craig. (Photo by Roger Elmore)

Frozen, Emerged Corn?

May 10, 2019
Temperatures in some fields early Friday morning may have caused some to remember 2017 conditions and wonder about possible frost damage to corn seedlings. Here's how this year is different.

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