Purdue Extension College of Agriculture Agronomy the Chat 'n Chew Cafe Purdue Corn Guy
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R.L. (Bob) Nielsen

Extension Corn Specialist & Professor of Agronomy

Purdue University, West Lafayette, Indiana, USA

rnielsen@purdue.edu

765.494.4802

@PurdueCornGuy

Corny News Compendium

YouTube channel


Research Interests

Corn response to plant populations

Corn response to nitrogen fertilizer rates

Enhancing crop management decisions using UAV imagery

Corn response to sulfur fertilizer

Corn response to starter fertilizer

Corn response to biological in-furrow soil amendments


Awards & Recognition

2020 - Honorary Master Farmer - Indiana Prairie Farmer Magazine and Purdue College of Agriculture

2019 - Outstanding Service to American & World Agriculture Award - National Assoc. of County Ag. Agents

2018 - Distinguished Service Award - Indiana Crop Improvement Assoc.

2016 - Frederick L. Hovde Award of Excellence - Indiana Farm Bureau

2015 - Beyond the Fence Ag Education Outreach Award - Beck's Hybrids / Indiana Corn Marketing Council / Indiana Soybean Alliance

2010 - Certificate of Distinction - Purdue Ag. Alumni Assoc.

2009 - Agronomic Extension Education Award - American Soc. Agronomy

2002 - Crops & Soils Award - Indiana Crop Improvement Assoc.

1999 - Eric G. Sharvelle Distinguished Extension Specialist Award - Purdue University Extension

1995 - Werner L. Nelson Award for Diagnosis of Yield-Limiting Factors - American Soc. Agronomy

1989 - USDA Unit Award for Superior Service



My Responsibilities at Purdue University

Sep 1982 - Current

I was raised on a farm in eastern Nebraska, obtained a B.S. degree at the Univ. of Nebraska and graduate degrees at the Univ. of Minnesota. I joined the Agronomy faculty at Purdue in 1982 with statewide responsibilities for applied field research, graduate student training, and Extension programming with an emphasis on corn management practices.

My field-scale research currently focuses on identifying the optimal management of nitrogen fertilizer, seeding rates, starter fertilizer, sulfur fertilizer, biological in-furrow amendments, and the use of small UAVs for crop scouting and field research. My Extension programming focuses on optimizing yield, profitability, and stewardship of corn production for growers in Indiana and throughout the eastern Corn Belt. Since the mid-1990's, I have made extensive use of the Web as an Extension communication medium. My primary online presence was the KingCorn Web site that included the popular Chat 'n Chew Cafe page that provided a "1-stop shop" for links to timely agronomic newsletters from landgrant universities throughout the Midwest, plus links to educational events and useful crop management references.

NOTE: In January 2020, I began a voluntary partial retirement program with a 50% workload and a targeted date of full retirement of 31 Dec 2022. One consequence of that decision is that I do not intend on bringing on new graduate students or post-doctoral researchers.

With the arrival of my successor, Dr. Daniel Quinn, in May 2021, I decommissioned the bulk of my Web site in deference to a new corn Web site created by Dan. For the immediate future, you can still access many of the Corny News articles I authored over the years at my "Corny News Compendium" Web page or indirectly from Dan's Web site.

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Extension Programs in Corn Management
  • Corn Growth and Development
  • Effects of Stress on Corn
  • Stand Establishment Issues in Corn
  • Corn Replant Decision-making
  • High Yield Corn: Philosophies & Strategies
  • Crop Problem Troubleshooting
  • Yield Monitors and Yield Data: Best Management Practices
  • Technology Transfer and Distance Education via the World Wide Web
  • Continuous Corn: Best Management Practices
  • On-farm Research: Why and How?
  • Precision Ag. Technologies and Crop Management
  • Uses for UAV Imagery in Crop Management
  • Fact vs. Fiction: Filter the Kool-Aid Before You Drink It
  • Managing Nitrogen Fertilizer for Corn
  • Strategies for Improving Profitability in Corn Production
  • Transgenic Crop Issues

Extension publications

After the Internet and the World Wide Web became widely available to the general public in the mid-1990's, I focused much of my Extension communications in the form of online newsletter articles under the banner of the "Corny News Network (CNN)". Most of those are available in my Corny News Compendium.

In March 2020, Shaun Casteel (Ext. Soybean Specialist) and I initiated the Purdue Crop Chat podcast series, in collaboration with Hoosier Ag Today.

YouTube videos of several presentations are available for your perusal at my YouTube channel at https://www.youtube.com/user/rlncorn.

More formal Extension publications I have authored or co-authored are listed below.