ID-278: The Role of Phosphorus in Kentucky Agricultural Development: A Story of the Haves and the Have–Nots

John Ragland, Dennis Egli, Katsutoshi Mizuta, Stephen Greb, Jeffrey Levy | July 24, 2025 (New)

Central Kentucky soils frequently contain hundreds of pounds of plant-available phosphorus per acre, compared to five to seven pounds per acre for the soils of most counties in other parts of the state. This richness of the Central Kentucky soils is due to the unusually high phosphorus content of the parent material, known as the Lexington Limestone. This rock unit forms the bedrock in Central Kentucky above a geologic structure called the Cincinnati Arch, and it has made these Central Kentucky counties the “haves,” in regard to soils inherently rich in plant-available phosphorus.

PR-533: 2006 New Crop Opportunities Research Report

Bob Anderson, Doug Archbold, Sharon Bale, Steve Berberich, Morris Bitzer, Bill Bruening, Ron Curd, Carl Dillon, Win Dunwell, Dennis Egli, Matthew Ernst, Cindy Finneseth, Amy Fulcher, Bob Geneve, Larry Grabau, John Grove, John Hartman, Ken Haynes, Bob Houtz, June Johnston, Terry Jones, Carrie Knott, Eugene Lacefield, Chad Lee, Joe Masabni, Bob McNeil, Sam McNeill, Michael Montross, Bill Pearce, Todd Pfeiffer, Amy Poston, Dan Potter, Brent Rowell, Amanda Sears, Darrell Slone, Chris Smigell, John Snyder, John Strang, Dave Sanford, Mark Williams, Dwight Wolfe, Tim Woods | July 15, 2006 (New)

PR-464: Agronomy Research Report, 2002

Bill Bruening, Dottie Call, Mike Collins, David Ditsch, Charles Dougherty, Dennis Egli, Larry Grabau, J.D. Green, John Grove, Jimmy Henning, Jim Herbek, John James, Garry Lacefield, Jim Martin, Lloyd Murdock, Gene Olson, Gary Palmer, Todd Pfeiffer, Tim Phillips, Monroe Rasnake, Robert Spitaleri, Norm Taylor, Dennis Tekrony, Bill Witt | June 30, 2002 (New)

PR-402: 1998 Agronomy Research Report

Richard Barnhisel, Mike Barrett, Morris Bitzer, Bill Bruening, Lowell Bush, Dottie Call, Mike Collins, Mark Coyne, Maelor Davies, David Ditsch, Charles Dougherty, Dennis Egli, Don Ely, Larry Grabau, J.D. Green, John Grove, Jimmy Henning, Jim Herbek, Don Hershman, John Johns, Doug Johnson, Fred Knapp, Garry Lacefield, Eugene Lacefield, Bill Maksymowicz, Jim Martin, Lloyd Murdock, Gary Palmer, Bob Pearce, Todd Pfeiffer, Tim Phillips, Chuck Poneleit, A.J. Powell, Monroe Rasnake, Charles Slack, Scott Smith, Robert Spitaleri, Norm Taylor, Dennis Tekrony, Bill Thom, Charles Tutt, Dave Sanford, Ken Wells, David Williams, Bill Witt | July 1, 1998 (New)