Roger Elmore - Emeritus Extension Cropping Systems Agronomist

Roger Elmore

emeriti
Work Keim Hall (KEIM) 202
Lincoln NE 68583-0915
US
Work 402-472-2811 On campus, dial 2-2811
Roger Elmore, is an University of Nebraska–Lincoln agronomy and horticulture professor, Heuermann Chair and interim associate department head. Elmore, a Nebraska Extension cropping systems specialist and Water for Food Daugherty Global Institute Faculty Fellow, has spent his entire career addressing agronomic issues relevant to the immediate needs of crop producers. He provides research information that is science-based, timely, and relevant to a diverse audience. Elmore has a long history of applied crop production research and extension programs focused on maintaining or increasing crop production, profitability, and water use efficiency by seeking and demonstrating environmentally sound production practices. His focus is on research and developing, teaching and extending timely and pertinent crop management information for farmers, agribusiness, extension personnel and students. His most significant research contributions have centered on evaluating corn growth and yield response to extreme weather events. He has been able to engage diverse groups based on this research with high-impact extension programming. He co-leads a cover crop research project supported by the Nebraska Soybean Board and the Nebraska Corn Board. He has served as a consultant for various organizations across the globe and he was worked on projects in Ghana, China, Argentina and Puerto Rico. He was employed with the University of Nebraska–Lincoln for 24 years before spending nearly nine years as a corn extension specialist at Iowa State University where he lead development of the “Corn growth and development” extension publication — one of his most important extension contributions to date. He returned to Nebraska in 2014 as a cropping systems agronomist. Having a successful career as a cropping systems agronomist focusing primarily on corn and soybean production, Elmore believes in the synergism of effective teams and has been able to develop and deliver effective state, regional, national and international programs.

icon-academic-capEducation

  • Other, Illinois Valley Community College, 1972
  • BS, Illinois State University, 1974
  • MS, University of Illinois, 1978
  • Ph D, University of Illinois, 1981

icon-business-chartResearch & Grants

  • Sustainable Corn/Soybean Production, Ne Soybean Board, October 2017
  • Sustainable Corn/Soybean Production, Ne Corn Board, July 2015

icon-bookmark-starAwards & Honors

  • Fellow, Crop Science Society of America, 2017
  • Agronomic Education and Extension Award , American Society of Agronomy, 2017

Faculty Bio

Graph of multiple Corn Belt studies looking at the optimum corn planting window

Windows of Opportunity for Corn Planting: Data from Across the Corn Belt

April 24, 2019
A survey of published research on corn planting dates in the central northern Corn Belt indicates there is a window from mid-April to mid-May when optimum yields can be achieved.

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Graph showing irrigated corn yield departure from Trend-Line Yields and Corn Planting Progress by April 29 for 1985-2018 (excluding 1993 data) in Nebraska. From USDA-NASS survey data.

Windows of Opportunity for Corn Planting: Nebraska Data

April 24, 2019
Does early planting of corn necessarily result in higher yields? An examination of Nebraska research and data from USDA NASS sheds light on the question, indicating that, up to mid-May, other factors may affect final yield more than planting date.

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Graph showing the effects of four planting dates and two hybrids on plate internode length.

Planting Date Impact on Corn Growth and Ear Issues

March 12, 2019
Do delayed planting dates affect plant growth (leaf height, stem diameter, and internode length) and ear formation issues in corn? See what this student researcher learned from trials conducted near Clay Center in summer 2018.

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Rye cover crop

Soil Microbial Communities under Cover Crops

March 12, 2019
This study examined impacts of using a cereal rye cover crop in corn systems in eastern Nebraska and found that it boosted the microbial community in the upper two inches of the soil. This may improve soil aggregation, nutrient cycling, and other soil health benefits.

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person measuring corn stalk diameter
Figure 1. Corn height and stalk diameter for the different treatments were measured weekly and compared.

Effect of Rye or Oat Cover Crop on Corn Growth and Development in a Rain-Fed, Wheat-Corn Rotation

March 12, 2019
Cover crop species and planting date are two factors that could affect the following crop. In this student study the effects on corn of cover crop species and planting dates were evaluated.

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Graphic for the UNL CropWatch Podcast

CW Podcast: Corn Planting and Early Growth Stages

February 22, 2019
This month's Nebraska CropWatch podcast looks at early season management factors to achieve a uniform corn stand, from hybrid selection to planting, and reviews what to expect with early season plant stages.

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Soybeans with purple seed stain (left) and soybeans showing signs of seed decay due to Phomopsis disease complex. (Photo by Jenny Rees)
Figure 1. Soybeans with purple seed stain (left) and soybeans showing signs of seed decay due to Phomopsis disease complex. (Photo by Jenny Rees)

Soybean Seed Germination Concerns

February 13, 2019
Average germination rates of new crop soybean being tested by the Nebraska Crop Improvement Association are lower than in recent years. Growers are urged to check the germination rate for their soybean seed and adjust planting rate and use of fungicide treatments accordingly.

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Modern corn hybrids, shown here, differ significantly from hybrids of 50 years ago.

Corn Growth and Development: Updating an Old Paradigm of Dry Matter and Nutrient Accumulation and Partitioning

January 23, 2019
From the 1960s to the 2000s corn hybrids have changed dramatically in appearance and yield. Nutrient content, concentrations and partitioning also have changed and are the focus of this article for the Nebraska Crop Management Conference Jan. 28-29.

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