Numbered Publications by John James
SR-107: Sensor Technology for Variable Rate Nitrogen Applications on Wheat in Kentucky: Recommendations and Verification
Dottie Call, John James, Lloyd Murdock, Ole Wendroth | Oct. 28, 2013 (New)
Nitrogen (N) applications on wheat using sensor-based technology can improve both N use efficiency and yields.
ID-177: Comparing No-Till and Tilled Wheat in Kentucky
Dottie Call, Larry Grabau, John Grove, Jim Herbek, Don Hershman, John James, Doug Johnson, Jim Martin, Lloyd Murdock, Dave Van Sanford | Aug. 26, 2009 (New)
Historically, wheat planting in Kentucky has involved tillage. With conventional tillage practices, most residues from the previous crop are cut and buried prior to seeding wheat. No-till wheat planting eliminates tillage and reduces soil erosion, particularly on sloping soils, as well as reducing labor, machinery, and energy costs.
AGR-197: Compaction, Tillage Method, and Subsoiling Effects on Crop Production
Dottie Call, John James, Lloyd Murdock | Jan. 11, 2008 (New)
No-tillage is the preferred method of crop production for most Kentucky farmers. No-tillage has been proven to increase soil quality and decrease the risk of soil compaction as compared to crop production using annual tillage. However, with the use of heavy farm equipment, soil compaction is always a threat with either tillage or no-tillage. The possibility of soil compaction and its effect on crop production is a constant concern to
many farmers using no-tillage. If soil compaction occurs, is there a difference between the two tillage systems on how it affects crop production and the recovery of the soil with and without subsoil tillage? The following study was conducted to help producers and advisors understand soil compaction and its effects on corn and soybean production as well as the ability of the two tillage systems to recover from soil compaction.
AGR-181: Comparison and Use of Chlorophyll Meters on Wheat
Dottie Call, John James, Lloyd Murdock | Nov. 1, 2004 (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 | Jun. 30, 2002 (New)
PR-432: Agronomy Research Report 2000
Richard Barnheisel, Morris Bitzer, Jimmie Calvert, Glenn Collins, Mike Collins, Mark Coyne, David Ditsch, Charles Dougherty, Larry Grabau, J.D. Green, Dan Grigson, John Grove, Dennis Hancock, Jimmy Henning, Jim Herbek, John James, John Johns, A.D. Karathanasis, Brenda Kennedy, Garry Lacefield, Eugene Lacefield, Len Lauriault, Bill Maksymowicz, Jim Martin, Bob Miller, Tom Mueller, Gregg Munshaw, Lloyd Murdock, Gary Palmer, Bob Pearce, Todd Pfeiffer, Chuck Poneleit, A.J. Powell, Monroe Rasnake, Edwin Ritchey, Scott Shearer, Frank Sikora, Robert Spitaleri, Norm Taylor, Charles Tutt, Dave Van Sanford, Paul Vincelli, Ken Wells, David Williams, Bill Witt | Jul. 10, 2000 (New)
AGR-170: Using a Chlorophyll Meter to Make Nitrogen Recommendations on Wheat
John James, Lloyd Murdock | Sep. 1, 1997 (New)
