Edwin L. Ritchey

Edwin L. Ritchey

Edwin L. Ritchey

Extension Associate Professor

1205 Hopkinsville Street P.O. Box 469 (Office 181) Princeton, KY 42445-0469

Last Revised: Mar 19th, 2024

Professional Biography

UK Research & Education Center

Specialties: Soil and Nutrient Management Soil and Waste Management


Associate Extension Professor, Plant and Soil Sciences, University of Kentucky, April 2016 to present – (UK-REC), Princeton, Kentucky

Assistant Extension Professor, Plant and Soil Sciences, University of Kentucky, October 2010 to April 2016 – located at the University of Kentucky Research and Education Center (UK-REC) in Princeton, Kentucky

Research Specialist, Kentucky-Tennessee Tobacco Improvement Initiative, Plant and Soil Sciences, University of Kentucky, 1999 to 2010

Graduate Research Assistant, Plant and Soil Sciences, University of Tennessee-Knoxville, 1996 to 1999


Extension Activities (80% of DOE)

Major Extension Program Areas: I provide current recommendations for crop production in the areas of manure management, soil fertility, and soil management. Specific extension focus areas are to promote the judicious use of animal manures, provide research-based data regarding crop sulfur needs specific to Kentucky clientele, and work with NRCS to provide science-based information for cover crop use. I deliver this scientifically sound information in a timely manner to clientele using presentations, publications, emails, phone calls, blogs, on-farm research, agent trainings, and farm visits.


Research Activities (20% of DOE)

My research supports my extension programming for best nutrient management, including commercial fertilizer, animal waste, cover crops, industrial by-product use, and other soil management practices. My research has included refining nitrogen availability coefficients for poultry litter, quantifying benefits of manure use above nutrient contribution, and providing a better understanding of weed/poultry litter dynamics. I have coordinated numerous sulfur tissue surveys and response trials to provide a better understanding of the sulfur plant nutrition status in Kentucky.


Ph.D., University of Kentucky
M.S., University of Tennessee, Knoxville
B.S., University of Tennessee, Martin

Contact Information

Rebecca McCulley, Ph.D.
Department Chair

105 Plant Sciences Building Lexington, KY 40546-0312

(859) 257-5020