Research Updates

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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Triticale crimped before adding green beans

Production of Soybean or Green Bean Following a Crimped Cover Crop March 7, 2019

Based on Nebraska research and a review of findings from other studies, best management practices for crimping rye before planting soybean or green bean are explored. Data on degree of weed control and soybean yields are included.

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Figure 1. Nebraska's Joe Louis with a collection of leaves infested by corn-leaf aphids. Louis and his colleagues have found that spraying a corn plant with one of its own defensive compounds might reduce aphid colonization by as much as 30%. (Photo by Craig Chandler, University Communication)
Figure 1. Nebraska's Joe Louis with a collection of leaves infested by corn-leaf aphids. Louis and his colleagues have found that spraying a corn plant with one of its own defensive compounds might reduce aphid colonization by as much as 30%. (Photo by Craig Chandler, University Communication)

Experiments Underscore Overlooked Aspect of Defending Corn from Pest March 4, 2019

Spraying a corn plant with one of its own compounds — 12-oxo-phytodienoic acid, or OPDA — can help deter the virus-carrying, pollination-disrupting insect known as the corn-leaf aphid.

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