Paul Jasa - Extension Engineer

staff
Work Chase Hall (CHA) 202
Lincoln NE 68583-0726
US
Work 402-472-6715 On campus, dial 2-6715
Figure 1. Cover crops planted after wheat harvest at the Daryl Obermeyer Farm east of Auburn in Nemaha County. On the left are oats plus turnips and radishes. On the right are turnips and radishes and cereal rye. The brassicas (turnips and radishes) out-compete the cereal rye in late summer. (Photo by Gary Lesoing)

Cover Crop Field Tour Sept. 17 in Nemaha County

September 4, 2019
A Cover Crop Field Tour of three sites in Nemaha County will look at how cover crops are being used and what the early yield and biomass data are showing. A soil pit at one site will also offer insights into longer-term soil health benefits.

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Cover crop demonstration plots at the Rogers Memorial Farm
Cover crops help suppress weeds as shown here with a grain sorghum cover crop growing in wheat stubble on the left compared to no cover crop on the right. If you don’t grow something, Mother Nature will. The field day will show some of the benefits of using cover crops to control weeeds, including marestail and Palmer amaranth.

Cover Crop Field Day Sept. 13 at UNL Rogers Memorial Farm

August 30, 2019
This tour will feature cover crop cocktails that serve specific functions as well as cover crops growing in wheat stubble, cover crop recovery after simulated grazing, and row crops growing in the residue from cover crops.

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By replacing one solid closing wheel with a spiked one, closing the seed-vee becomes easier in a variety of conditions.

Avoiding Sidewall Compaction at Planting

April 19, 2019
Don't let this season's planting conditions get the better of your crop stand. Described here are four factors contributing to sidewall compaction and steps you can take to minimize the challenge.

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Wet soil compaction

Addressing Harvest Ruts and Erosion Gullies

April 11, 2019
With the wet spring, producers need to evaluate soil moisture conditions before heading to their fields to clean up flood debris and fill in ruts, rills, and gullies.

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Tilling wet soil creates additional problems

Wait For Better Conditions Before Heading Out On Wet Soils

April 11, 2019
If you're putting a log chain or tow strap in the tractor cab just in case you get stuck, even you know it’s too wet. Waiting a day or two for the soil to dry out some will provide better soil conditions for planting and stand establishment.

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Figure 1. Standing residue captures snow across this no-till field, reducing blowing snow and erosion. (Photos by Paul Jasa)

Leave the Stubble to Protect the Soil

November 16, 2018
No-till November, a USDA NRCS campaign, encourages farmers to park their tillage implements this fall, in favor of keeping crop residue on the soil surface. Using no-till as a system reduces erosion, runoff, and soil moisture evaporation.

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A diverse 14-way mix was planted into wheat stubble immediately after harvest to keep living roots in the field.  The cover crop is using sunlight and carbon dioxide to put energy and carbon into the soil to feed the soil biology.
A diverse 14-way mix was planted into wheat stubble immediately after harvest to keep living roots in the field. The cover crop is using sunlight and carbon dioxide to put energy and carbon into the soil to feed the soil biology. (Photo by Paul Jasa)

Cover Crops for Soil Health in Storm-damaged Fields

July 13, 2018
Fields that were hailed, flooded, windblown, or where planting was prevented this season can benefit from the many soil services provided by cover crops. In addition a growing cover crop can help reduce erosion from water and wind and may help protect soil moisture levels.

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Planting
Figure 1. Planting down the old row and leaving the residue attached can help reduce the potential for wind erosion. Residue movers should not be used as they detach residue, allowing it to be moved by wind or water.

Practices to Reduce Wind Erosion

May 11, 2018
Keeping your soil covered with growing cover crops or crop residue are two of the best ways to help protect it from wind erosion. Both practices will help to keep the wind off the soil surface and reduce soil moisture evaporation, providing a moister soil that's less apt to move.

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