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Lloyd Murdock


AGR-250

Remediation of the Fragipan Using Annual Ryegrass

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)
Tags: soil and land
Size: 5.68 mb
Pages: 8



ID-125

A Comprehensive Guide to Wheat Management in Kentucky

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)
Tags: farm crops, grain crops, small grains
Size: 6.50 mb
Pages: 72



ID-163

Agricultural Lime Recommendations Based on Lime Quality

1/13/2016 (major revision)
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)
Tags: nutrient management, production practices, soil and land
Size: 485 kb
Pages: 6



AGR-210

Fertilizer Management in Alfalfa

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)
Tags: cover and forage crops, farm crops, legumes, nutrient management, production practices
Size: 4 kb
Pages: 4



SR-107

Sensor Technology for Variable Rate Nitrogen Applications on Wheat in Kentucky: Recommendations and Verification

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)
Tags: farm crops, grain crops, small grains
Size: 812 kb
Pages: 6



PR-657

Soybean Management Verification Program, 2012

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)
Tags: farm crops, grain crops, research, soybeans, variety trials
Size: 2.30 mb
Pages: 48



PR-639

Soybean Management Verification Program, 2011

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)
Tags: farm crops, grain crops, research, soybeans, variety trials
Size: 1.50 mb
Pages: 16



ID-193

Profitability of Nitrogen Applications for Stockpiling Tall Fescue Pastures: 2011 Guide

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)
Tags: cover and forage crops, farm crops, grasses
Size: 290 kb
Pages: 4



PR-622

Soybean Management Verification Program, 2010

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)
Tags: farm crops, grain crops, research, soybeans, variety trials
Size: 1.30 mb
Pages: 20



PR-605

Soybean Management Verification Program, 2009

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)
Tags: farm crops, grain crops, research, soybeans, variety trials
Size: 780 kb
Pages: 24



AGR-185

Nitrogen Transformation Inhibitors and Controlled-Release Urea

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)
Tags: nutrient management, production practices
Size: 500 kb
Pages: 6



ID-159

Corn and Soybean Production Calendar

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)
Tags: corn, farm crops, grain crops, soybeans
Size: 650 kb
Pages: 12



ID-177

Comparing No-Till and Tilled Wheat in Kentucky

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)
Tags: farm crops, grain crops, small grains
Size: 233 kb
Pages: 10



AGR-197

Compaction, Tillage Method, and Subsoiling Effects on Crop Production

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)
Tags: soil and land
Size: 293 kb
Pages: 4



AGR-17

Double-Cropping Land for Silage Production

10/31/2007 (minor revision)
Authors: Chad Lee, Lloyd Murdock, Greg Schwab

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags:
Size: 192 kb
Pages: 2



AGR-16

Taking Soil Test Samples

9/4/2007 (reprinted)
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)
Tags: nutrient management, production practices, soil and land
Size: 150 kb
Pages: 4



AGR-193

Evaluating Flood Damage in Corn

7/27/2007 (new)
Authors: Jim Herbek, Chad Lee, Lloyd Murdock, Greg Schwab

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: corn, farm crops, grain crops
Size: 160 kb
Pages: 2



AGR-189

Managing Seasonal Fluctuations of Soil Tests

5/15/2006 (new)
Authors: Dottie Call, Lloyd Murdock

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: soil and land
Size: 211 kb
Pages: 4



AGR-181

Comparison and Use of Chlorophyll Meters on Wheat

11/1/2004 (new)
Authors: Dottie Call, John James, Lloyd Murdock

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: farm crops, grain crops, small grains
Size: 181 kb
Pages: 4



AGR-180

Corn Stalk Nitrate Test

8/27/2004 (new)
Authors: Lloyd Murdock, Greg Schwab

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: corn, farm crops, grain crops, nutrient management, production practices
Size: 136 kb
Pages: 2



ID-153

Assessing and Preventing Soil Compaction in Kentucky

5/28/2004 (new)
Authors: Lloyd Murdock, Greg Schwab, Larry Wells

Departments: Biosystems and Agricultural Engineering, Plant and Soil Sciences
Series: Interdepartmental (ID series)
Tags: soil and land
Size: 1.07 mb
Pages: 5



AGR-106

Determining the Quality of Aglime: Relative Neutralizing Value (RNV)

12/4/2002 (minor revision)
Authors: Lloyd Murdock, Monroe Rasnake, Greg Schwab, Bill Thom

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: nutrient management, production practices, soil and land
Size: 90 kb
Pages: 2



PR-464

Agronomy Research Report, 2002

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)
Tags:
Size: 322 kb
Pages: 39



ID-139

A Comprehensive Guide to Corn Management in Kentucky

9/30/2001 (new)
Authors: Ric Bessin, Morris Bitzer, J.D. Green, Jim Herbek, Greg Ibendahl, Jim Martin, Sam McNeill, Michael Montross, Lloyd Murdock, Paul Vincelli, Ken Wells

The corn grown in Kentucky is used mainly for livestock feed and as a cash crop. As a cash crop sold from the farm, corn ranks third behind tobacco and soybeans but is the number one row crop in terms of acreage. Because the cost of producing an acre of corn is high and the value per bushel has declined in recent years, producers must manage and market their corn crop more carefully for adequate profits. The goal of this publication is to serve as a guide for corn production strategies that focus on efficient use of resources and provide the principles and practices for obtaining maximum, profitable corn yields.

Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Tags: corn, farm crops, grain crops, vegetables
Size: 639 kb
Pages: 64



AGR-57

Soil Testing: What It Is and What It Does

8/15/2000 (minor revision)
Authors: Lloyd Murdock, Frank Sikora, Bill Thom, Ken Wells

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: soil and land
Size: 253 kb
Pages: 2



PR-432

Agronomy Research Report 2000

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)
Tags:
Size: 550 kb
Pages: 55



ID-136

No-Till Small Grain Production in Kentucky

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)
Tags: farm crops, grain crops, small grains
Size: 467 kb
Pages: 11



PR-402

1998 Agronomy Research Report

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)
Tags:
Size: 403 kb
Pages: 56



AGR-170

Using a Chlorophyll Meter to Make Nitrogen Recommendations on Wheat

9/1/1997 (new)
Authors: John James, Lloyd Murdock

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: farm crops, grain crops, small grains
Size: 24 kb
Pages: 4



ID-125A

Kentucky Winter Wheat Calendar

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)
Tags: farm crops, grain crops, small grains
Size: 117 kb
Pages: 2



ID-124

Factors to Consider in Bringing Idle Land Back to Production

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)
Tags:
Size: 228 kb
Pages: 12



AGR-161

Soil Compaction in Kentucky

10/1/1995 (new)
Authors: Tim Gray, Freddie Higgins, Lloyd Murdock, Ken Wells

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: soil and land
Size: 27 kb
Pages: 4



AGR-103

Fertilization of Cool-Season Grasses

3/5/1995 (reprinted)
Authors: Charles Dougherty, Lloyd Murdock, Ken Wells

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: cover and forage crops, farm crops, grasses, nutrient management, production practices
Size: 16 kb
Pages:



AGR-151

Evaluating Fertilizer Recommendations

3/1/1995 (reprinted)
Authors: Lloyd Murdock

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: nutrient management, production practices
Size: 236 kb
Pages: 5



AGR-19

Liming Acid Soils

3/1/1995 (reprinted)
Authors: Lloyd Murdock, Monroe Rasnake

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: nutrient management, production practices, soil and land
Size: 10 kb
Pages:



ID-114

Canola Production and Management

9/1/1992 (new)
Authors: Jim Herbek, Lloyd Murdock, Steve Riggins

Departments: Agricultural Economics, Plant and Soil Sciences
Series: Interdepartmental (ID series)
Tags:
Size: 200 kb
Pages:



AGR-102

Erosion Its Effect on Soil Properties, Productivity and Profit

8/1/1983 (new)
Authors: Lloyd Murdock

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: soil and land
Size: 12 kb
Pages:



AGR-11

Potassium in Kentucky Soils

2/1/1979 (new)
Authors: Lloyd Murdock, Ken Wells

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Tags: nutrient management, production practices, soil and land
Size: 24 kb
Pages: