In descending order, by date published.
3/13/2023 (revised)
Authors: Lloyd Murdock, Monroe Rasnake, Greg Schwab, Bill Thom
Most Kentucky soils need to have lime applied in order to keep the pH in the optimum range for growing crops. Lime applications should always be based on a good soil test that takes into account the existing pH and the buffering capacity of the soil. However, even when all this is done and lime is applied as recommended, the desired change in soil pH may not occur. The problem may be due to the use of low quality lime.
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 228 kb
Pages: 2
3/13/2023 (revised)
Authors: Lloyd Murdock, Greg Schwab, Frank Sikora, Bill Thom
The most important part of making fertilizer recommendations is collecting a good, representative soil sample. Soil test results and fertilizer recommendations are based solely on the few ounces of soil submitted to the laboratory for analysis. These few ounces can represent several million pounds of soil in the field. If this sample does not reflect actual soil conditions, the results can be misleading and lead to costly over- or under-fertilization. It is necessary to make sure that the soil sample sent to the laboratory accurately represents the area sampled.
Departments: Plant and Soil Sciences, Regulatory Services
Series: Agronomy (AGR series)
Size: 353 kb
Pages: 4
3/13/2023 (revised)
Authors: David Ditsch, Josh McGrath, Lloyd Murdock, Edwin Ritchey, Frank Sikora
Soil acidity is one of the most important soil factors affecting crop growth and ultimately, yield and profitability. It is determined by measuring the soil pH, which is a measure of the amount of hydrogen ions in the soil solution. As soil acidity increases, the soil pH decreases. Soils tend to be naturally acidic in areas where rainfall is sufficient to cause substantial leaching of basic ions (such as calcium and magnesium), which are replaced by hydrogen ions. Most soils in Kentucky are naturally acidic because of our abundant rainfall.
Departments: Plant and Soil Sciences, Regulatory Services
Series: Interdepartmental (ID series)
Size: 473 kb
Pages: 6
4/29/2020 (new)
Authors: Dottie Call, John Grove, A.D. Karathanasis, Chris Matocha, Lloyd Murdock
The fragipan is a naturally occurring restrictive soil horizon that virtually stops water movement and root growth through the soil. It is commonly located 18-32 inches below the surface of most of Kentucky's fragipan soils. The dense nature of this layer is due to the cementation and binding of the soil particles with a silicate rich amorphous aluminosilicate in association with iron. The binding agents seal the pores and pack soil particles close together. The fragipan is found in 2.7 million acres in Kentucky, and about 50 million acres in the United States.
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 5.68 mb
Pages: 8
2/23/2016 (reprinted)
Authors: Bill Bruening, J.D. Green, John Grove, Jim Herbek, Don Hershman, Doug Johnson, Chad Lee, Jim Martin, Sam McNeill, Michael Montross, Lloyd Murdock, Doug Overhults, Greg Schwab, Lee Townsend, Dick Trimble, Dave Van Sanford
The soft red winter wheat grown in Kentucky is the fourth most valuable cash crop in the state. Winter wheat has been an integral part of crop rotation for Kentucky farmers. Wheat is normally harvested in June in Kentucky and provides an important source of cash flow during the summer months.
Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 6.50 mb
Pages: 72
1/8/2014 (new)
Authors: David Ditsch, Lloyd Murdock, Edwin Ritchey, Greg Schwab
Alfalfa is a high quality, valuable forage crop that can be successfully produced on most well-drained soils in Kentucky for hay, silage, and grazing. Fertilizing alfalfa can be uniquely challenging because it is a high-yielding crop that removes a tremendous amount of soil nutrients when compared to other crops grown in Kentucky. A thorough understanding of alfalfa's growth habits, nutrient requirements, and soil nutrient supply mechanisms is necessary to effectively manage fertilizer inputs and maximize profitability while minimizing environmental impact.
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 4 kb
Pages: 4
10/28/2013 (new)
Authors: Dottie Call, John James, Lloyd Murdock, Ole Wendroth
Nitrogen (N) applications on wheat using sensor-based technology can improve both N use efficiency and yields.
Departments: Plant and Soil Sciences
Series: Special Report (SR series)
Size: 812 kb
Pages: 6
3/29/2013 (new)
Authors: Jim Herbek, Chad Lee, Amanda Martin, Lloyd Murdock
The 2012 Soybean Management Verification Program (SoyMVP) enrolled 19 fields across Western Kentucky, providing ten direct comparisons between University of Kentucky recommendations and producers practices for soybean production. All fields were scouted weekly and recommendations were made on the university portion of the field based on established thresholds and observations from agronomic research. The objective of these comparisons is to validate university research and identify areas for more research.
Departments: Plant and Soil Sciences
Series: Progress Report (PR series)
Size: 2.30 mb
Pages: 48
2/24/2012 (new)
Authors: Jim Herbek, Chad Lee, Amanda Martin, Lloyd Murdock
The goal of SoyMVP is to verify applied research at the University of Kentucky and to identify whether University of Kentucky recommendations are adequate.
Departments: Plant and Soil Sciences
Series: Progress Report (PR series)
Size: 1.50 mb
Pages: 16
10/5/2011 (new)
Authors: Kenny Burdine, Greg Halich, John Johns, Lloyd Murdock, Ray Smith
The concept of stockpiling is pretty straightforward, but the challenge each year is to determine the likelihood that this practice will be profitable given the economic and agronomic conditions present at mid-summer. This practice can yield significant benefits, but it also carries significant costs. These benefits and costs must be quantified and compared to assess the overall profitability of the practice.
Departments: Agricultural Economics, Animal and Food Sciences, Plant and Soil Sciences
Series: Interdepartmental (ID series)
Size: 290 kb
Pages: 4
4/6/2011 (new)
Authors: Jim Herbek, Chad Lee, Lloyd Murdock, Jason Sarver, Greg Schwab
The 2010 Soybean Management Verification Program (SoyMVP) consisted of 16 fields across western Kentucky which were split to give seven direct comparisons between University of Kentucky recommendations and producer practices for soybean production.
Departments: Plant and Soil Sciences
Series: Progress Report (PR series)
Size: 1.30 mb
Pages: 20
3/14/2011 (new)
Authors: Jim Herbek, Chad Lee, Lloyd Murdock, Jason Sarver, Greg Schwab
The 2009 Soybean Management Verification Program (SoyMVP) consisted of 16 fields across Western Kentucky, which were split to give eight direct comparisons between University of Kentucky recommendations and producer practices for soybean production.
Departments: Plant and Soil Sciences
Series: Progress Report (PR series)
Size: 780 kb
Pages: 24
4/21/2010 (major revision)
Authors: Lloyd Murdock, Greg Schwab
The soaring cost of fossil fuels is an indicator that nitrogen fertilizer prices are going to remain high for the foreseeable future. With higher N prices, many producers are trying to evaluate the usefulness of several N additive products in their production systems. High N prices make these products more attractive because it takes fewer pounds of saved N to offset the price of the additive. Producers should have a good understanding of how these products work in order to make informed decisions regarding their use.
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 500 kb
Pages: 6
12/16/2009 (reprinted)
Authors: Ric Bessin, J.D. Green, Jim Herbek, Don Hershman, Doug Johnson, Chad Lee, Jim Martin, Lloyd Murdock, Steve Riggins, Greg Schwab, Tim Stombaugh, Paul Vincelli
The Corn and Soybean Production Calendar was developed to help producers prioritize and schedule work events in a timely fashion on the farm. Weather events and equipment breakdowns rarely follow an organized schedule. However, if other practices within the farming operation are prioritized, perhaps a producer can better address the emergencies that will occur.
Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 650 kb
Pages: 12
8/26/2009 (new)
Authors: Dottie Call, Larry Grabau, John Grove, Jim Herbek, Don Hershman, John James, Doug Johnson, Jim Martin, Lloyd Murdock, Dave Van Sanford
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.
Departments: Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 233 kb
Pages: 10
1/11/2008 (new)
Authors: Dottie Call, John James, Lloyd Murdock
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.
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 293 kb
Pages: 4
10/31/2007 (minor revision)
Authors: Chad Lee, Lloyd Murdock, Greg Schwab
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 192 kb
Pages: 2
7/27/2007 (new)
Authors: Jim Herbek, Chad Lee, Lloyd Murdock, Greg Schwab
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 160 kb
Pages: 2
5/15/2006 (new)
Authors: Dottie Call, Lloyd Murdock
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 211 kb
Pages: 4
11/1/2004 (new)
Authors: Dottie Call, John James, Lloyd Murdock
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 181 kb
Pages: 4
8/27/2004 (new)
Authors: Lloyd Murdock, Greg Schwab
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 136 kb
Pages: 2
5/28/2004 (new)
Authors: Lloyd Murdock, Greg Schwab, Larry Wells
Departments: Biosystems and Agricultural Engineering, Plant and Soil Sciences
Series: Interdepartmental (ID series)
Size: 1.07 mb
Pages: 5
6/30/2002 (new)
Authors: 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
Departments: Plant and Soil Sciences
Series: Progress Report (PR series)
Size: 322 kb
Pages: 39
8/15/2000 (minor revision)
Authors: Lloyd Murdock, Frank Sikora, Bill Thom, Ken Wells
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 253 kb
Pages: 2
7/10/2000 (new)
Authors: 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
Departments: Animal and Food Sciences, Biosystems and Agricultural Engineering, County Extension, Plant and Soil Sciences, Plant Pathology, Regulatory Services
Series: Progress Report (PR series)
Size: 550 kb
Pages: 55
5/1/2000 (new)
Authors: John Grove, Jim Herbek, Don Hershman, Doug Johnson, Jim Martin, Sam McNeill, Lloyd Murdock, Dick Trimble, Dave Van Sanford, Bill Witt
Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 467 kb
Pages: 11
7/1/1998 (new)
Authors: Richard Barnheisel, 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 Van Sanford, Ken Wells, David Williams, Bill Witt
Departments: Animal and Food Sciences, Entomology, KTRDC, Plant and Soil Sciences, Plant Pathology
Series: Progress Report (PR series)
Size: 403 kb
Pages: 56
9/1/1997 (new)
Authors: John James, Lloyd Murdock
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 24 kb
Pages: 4
9/1/1997 (reprinted)
Authors: Morris Bitzer, J.D. Green, John Grove, Jim Herbek, Don Hershman, Doug Johnson, Jim Martin, Sam McNeill, Lloyd Murdock, Lee Townsend, Dick Trimble, Dave Van Sanford
Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 117 kb
Pages: 2
4/1/1997 (new)
Authors: Jim Herbek, Don Hershman, Deborah Hill, Jim Martin, Lloyd Murdock, Monroe Rasnake, Lee Townsend, Dick Trimble
Departments: Agricultural Economics, Entomology, Forestry and Natural Resources, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 228 kb
Pages: 12
10/1/1995 (new)
Authors: Tim Gray, Freddie Higgins, Lloyd Murdock, Ken Wells
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 27 kb
Pages: 4
3/5/1995 (reprinted)
Authors: Charles Dougherty, Lloyd Murdock, Ken Wells
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 16 kb
Pages:
3/1/1995 (reprinted)
Authors: Lloyd Murdock
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 236 kb
Pages: 5
3/1/1995 (reprinted)
Authors: Lloyd Murdock, Monroe Rasnake
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 10 kb
Pages:
9/1/1992 (new)
Authors: Jim Herbek, Lloyd Murdock, Steve Riggins
Departments: Agricultural Economics, Plant and Soil Sciences
Series: Interdepartmental (ID series)
Size: 200 kb
Pages:
8/1/1983 (new)
Authors: Lloyd Murdock
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 12 kb
Pages:
2/1/1979 (new)
Authors: Lloyd Murdock, Ken Wells
Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 24 kb
Pages: