Research Updates

Student conducting research

Effect of Switchgrass Row Spacing on Inter-Seeded Legume Establishment

March 15, 2019
This project evaluated the effect of switchgrass row spacing on the establishment of Illinois bundleflower, partridge pea, alfalfa, white clover, and hairy vetch.

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Chart showing row spacing effects on switchgrass yields.

Effect of Row Spacing on Switchgrass Yield and Nutritive Value

March 14, 2019
This study was conducted from 2010 to 2015 to evaluate effects of row spacing on switchgrass forage yield. It compared two varieties: ‘Shawnee’ an upland ecotype, and ‘Kanlow x Summer HP1 NETO2 C1’, an experimental lowland ecotype later released as ‘Liberty’.

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Figure 1. Soil disturbance after disking and interseeding legumes.
Figure 1. Soil disturbance after disking and interseeding legumes.

Burning, Disking, and Spraying Consequences on Big Bluestem Forage Yield, Nutritive Value, and Native Legume Establishment

March 14, 2019
A two-year study evaluated establishment of two native legume species into five-year old established big bluestem pastures and compared seven treatments.

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Cover crop field trial

Cover Crops and Carbon Sequestration: Benefits to the Producer and the Planet

March 11, 2019
This student study of a four-year research project found cover crops may significantly improve soil aggregation and particulate organic matter concentration in the short-term, which suggests the potential for cover crops storing soil carbon in the long term.

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Rye in continuous corn April 19, 2018 at the Eastern Nebraska Research and Education Center near Mead
Rye in continuous corn April 19, 2018 at the Eastern Nebraska Research and Education Center near Mead

How Does Cover Crop Planting Date Affect Soil’s Susceptibility to Water Erosion?

March 11, 2019
This Nebraska student study of how cover crops planted pre- and post-harvest affected soil erodibility found that the amount of water-stable aggregates and biomass production increased with pre-harvest planting.

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Dry edible beans being cooked to test various variety attributes, including cooking time

When Developing New Lines of Dry Edible Beans, Cooking Time Matters Too

March 8, 2019
When breeding new lines of dry edible beans, disease resistance, drought tolerance, and plant architecture can be observed in the field, but measuring cooking time is a chore for the laboratory. Cooks prefer varieties that cook in 30-45 minutes.

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Rebecca Roston, assistant professor of biochemistry, holds a pea plant outside the Beadle Hall greenhouses. Roston, who recently earned a National Science Foundation CAREER award, is studying how more than 30 species of plants respond to freezing. (Photo by Craig Chandler)
Rebecca Roston, assistant professor of biochemistry, holds a pea plant outside the Beadle Hall greenhouses. Roston, who recently earned a National Science Foundation CAREER award, is studying how more than 30 species of plants respond to freezing. (Photo by Craig Chandler)

NSF Award Boosts Research into Freeze-Tolerant Crops

March 8, 2019

For some plants — like corn — below-zero temperatures trigger a cascade of lethal damage. For others, the damage isn't permanent. UNL biochemist Rebecca Roston is working to identify key properties so one day more freeze-tolerant crops might be developed.

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Figure 1. Crimping rye at a mild angle using a newly designed roller-crimper with two 10-foot barrels. (Photos by Rich Little)

A Roller-Crimper for Cover Crop Termination and Weed Suppression

March 7, 2019
Following unsatisfactory crimping results with a commercial crimper, in 2016 researchers built a crimper with a unique design with two gangs that pull at an angle to the direction of travel. View research results from field tests with the new crimper.

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