Katja Koehler-Cole - Extension Educator

Katja Koehler-Cole

faculty
Work
1071 County Road G Ithaca NE 68033
US
Work 402-624-8042 On campus, dial 7-8042

Dr. Koehler-Cole was promoted to assistant research professor in the Department of Agronomy and Horticulture Dec. 1, 2018. You can find the articles she wrote as a Post-Doctoral Research Associate here.

Sunflower cover crop

Warm-season Species for Soil Health and Forage Purposes

July 27, 2023
Taking advantage of summer heat and abundant sunlight, warm-season cover crops can accumulate impressive amounts of biomass, cover bare ground quickly, suppress weeds, reduce erosion and improve soil health.

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Interseeding video intro
It’s important to plan ahead of time and know your goals when adding cover crops to your operation. In this article, Nebraska Extension evaluates numerous cover crop species and provides guidance on how to choose the species that will best fit your production needs. This video shares additional information on cover crop species used.

Interseeding Cover Crops into Early Season Corn and Soybean: Species Selection

April 27, 2023
In this article, Nebraska Extension evaluates numerous cover crop species for interseeding and provides guidance on how to choose the species that will best fit your production needs.

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Interseeded cover crops

On-Farm Research Early-season Interseeding into Corn and Soybean Results (2019-2022)

April 13, 2023
The final results of a three-year study on interseeding cover crops in early-season corn and soybean include observations on yield, soil quality and net return.

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Jerry oat cover crop

Evaluation of Diverse Cover Crops Across Nebraska: Findings from Spring-planted Cover Crops in 2022

February 23, 2023
Results from 2022 variety trial research conducted on numerous cover crop species at five UNL research stations across Nebraska.

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Cover crop in field
Cover crop mix (cereal rye and brassicas) in a field on Oct. 12. Last year’s cereal rye residue is still visible.

Broadcast Interseeding with a Highboy — What We Learned in Year One

December 16, 2022
First-year results of a study to assess cover crop establishment using broadcast late-season interseeding in rainfed and irrigated fields.

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Highboy interseeder

Highboy Cover Crop Interseeding Project

October 6, 2022
Interested producers are encouraged to participate in this new UNL project, wherein researchers are interseeding cover crops into late-season corn to provide additional growth time before winter dormancy.

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Cover crop mix drill interseeded
Cover crop mix drill interseeded into V4 corn growing well by V8-9 leaf corn. (Photo by Jenny Rees)

Comparing Cover Crop Planting Methods

September 1, 2022
While planting cover crops after harvest with a drill or planter may be the most convenient, there are several other planting methods that can increase cover crop success as measured by biomass production.

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Cereal rye cover crop
Producers can now estimate the biomass, water use and nitrogen uptake of cereal rye — one of the most common cover crop species in the U.S. — using the new Cover Crop Biomass Calculator. (CropWatch file photo)

Cover Crop Biomass Calculator Available for Nebraska

July 7, 2022
This new tool estimates cover crop growth with different planting and termination times across the state of Nebraska, to help producers maximize cover crop growth between fall harvest and spring planting.

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