Roger Elmore - Extension Cropping Systems Agronomist

Roger Elmore

faculty
Work Keim Hall (KEIM) 165
Lincoln NE 68583-0915
US
Work 402-472-1451 On campus, dial 2-1451
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

Soybean emerging from a crack in a heavily crusted field.

Considerations after Crusted Soybean June 14, 2019

Soil crusting is challenging soybean emergence, but is it enough to warrant replanting? Here are early steps to remediate crusting problems and factors to consider when considering replanting.

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Planter in a field of corn residue

Corn Hybrid Maturities and Late Planting June 13, 2019

Still planting corn and wanting to change to a different hybrid maturity? Here are some things to consider and a tool that can help you assess which hybrid options are likely to mature before an average fall freeze date for your location.

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Part of a row of corn struggling to survive
These plants, in a Clay County corn field, are in deep water and deep trouble! The bright vibrant greens of typical V2 to V3 seedlings are replaced with sickly yellows, indicating plummeting chlorophyll readings and photosynthesis. Roots of these oxygen-starved plants are no longer growing and are likely dying. The soil to which they are anchored has changed dramatically and full plant recovery is likely not possible. (Photos by Roger Elmore)

Corn Establishment and Growth in Saturated Soils: A Brief Review of New Research May 31, 2019

How long can seedling corn survive under flooded conditions? A review of current scientific literature offers new understandings of when and how plant injury occurs and what factors affect it.

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Figure 1. Growers surveyed about why they conduct on-farm research said that, among other benefits, they appreciated getting to share their results and talk with other growers about their research at winter meetings.

Study Highlights Motivations and Impact of Participating in an On-Farm Research Network May 31, 2019

Forty Nebraska growers participating in the On-Farm Research Network recently shared why they conduct on-farm research and what it's meant to be part of a group of researchers. The results, published in the Agronomy Journal, illustrate a range of benefits, including cost savings and economic gains.

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Figure 1. The degree of damage from standing water in this field will depend on several factors and likely will lead to direct yield losses or indirect losses from increased disease pressure.
Figure 1. The degree of damage from standing water in this field will depend on several factors and likely will lead to direct yield losses or indirect losses from increased disease pressure.

Response of Germinating and Early Season Soybeans to Flooding May 30, 2019

Injury to germinating and seedling soybean from flooding depends on several factors, including soybean growth stage, flood duration, and air and soil temperature and varies the varieties. Pythium and Phytophthora are two diseases to scout for after flooding.

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Figure 1. University of Wisconsin researchers studied drilling cover crops into V5 corn. (Source: University of Wisconsin Integrated Pest and Crop Management)
Figure 1. University of Wisconsin researchers studied drilling cover crops into V5 corn. (Source: University of Wisconsin Integrated Pest and Crop Management)

Interseeding Cover Crops into Corn or Soybean May 23, 2019

In some years it may be difficult to well establish a cover crop after corn harvest. This article surveys current research on interseeding into an established crop, further considerations, and how to test this practice on your farm.

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Figure 1. A research plot at the university’s Eastern Nebraska Research and Extension Center (ENREC) near Mead on May 13, 2019. The entire plot is covered with no-till corn residue. The west half also is covered with a November 17 planted cereal rye cover crop. Soil temperatures 2 inches deep were recorded in each half, but were essentially the same, so are averaged in this report.
Figure 1. A research plot at the university’s Eastern Nebraska Research and Extension Center (ENREC) near Mead on May 13, 2019. The entire plot is covered with no-till corn residue. The west half also is covered with a November 17 planted cereal rye cover crop. Soil temperatures 2 inches deep were recorded in each half, but were essentially the same, so are averaged in this report.

Soybean Germination/Emergence with April Planting Dates Relative to Coincident Air and Soil Temperatures in April and May May 16, 2019

A closer look at air and soil temperatures in April and soybean germination and emergence from 10 planting dates did not find chilling injury, despite periods below 50°F. Further research is needed to better understand the imbibitional period in soybean.

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Photos illustrating two points in rating system used to evaluate freeze damage to seedling corn. These show corn recovery from frost at V1-V2 growth stage in 2014 near Craig
Figure 1. Photos illustrating two points in rating system used to evaluate freeze damage to seedling corn. These show corn recovery from frost at V1-V2 growth stage in 2014 near Craig. (Photo by Roger Elmore)

Frozen, Emerged Corn? May 10, 2019

Temperatures in some fields early Friday morning may have caused some to remember 2017 conditions and wonder about possible frost damage to corn seedlings. Here's how this year is different.

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