Numbered Publications: Plant and Soil Sciences
AGR-6: Weed Control Recommendations for Kentucky Grain Crops, 2025
Travis Legleiter | Nov. 6, 2024 (Minor Revision)
The use of herbicides suggested in this publication is based on research at the Kentucky Agricultural Experiment Station and elsewhere. We have given what we believe to be the most effective herbicides, with the most suitable rates and times of application.
PR-851: 2024 Kentucky Soybean Variety Performance Trials
Dalton Mertz, Bill Bruening, Cam Kenimer, Phillip Shine | Oct. 30, 2024 (New)
The Kentucky Soybean Variety Performance Trials are conducted to provide an unbiased and objective estimate of the relative performance of soybean varieties commercially available in Kentucky. Annual evaluation of soybean varieties provides farmers, seed producers, and other agricultural workers with current information to help them select the varieties best adapted to their locality and individual requirements.
PR-849: 2024 Kentucky Hybrid Corn Performance Test
Cam Kenimer, Phillip Shine, Dalton Mertz | Oct. 23, 2024 (New)
The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location.
AGR-277: Using a Rising Plate Meter to Measure Pasture Growth: A Practical Guide
Echo Gotsick, Ray Smith | Oct. 14, 2024 (New)
Knowing pasture yields is very helpful for all livestock operations, especially cattle farms. High animal productivity is only possible with access to adequate quantities of high-quality forage. Previous research has shown a correlation between forage height and pasture yield. Height can be measured with tools as simple as a ruler, but this method often does not produce accurate yield estimates because pasture density is not taken into account.
AGR-282: Warm-Season Native Areas for Kentucky Golf Courses
Kenneth Clayton, Elizabeth Johnson | Sep. 25, 2024 (New)
The average golf course has a median footprint of about 150 acres, and natural or native vegetation covers approximately 17% of these acres. Golf courses often provide large green spaces in urban areas. Not all of these areas are highly maintained turfgrass; some are cultivated as native areas. Native areas may be defined as those areas on the golf course receiving very infrequent mowing and composed of one or more of the following: native warm-season grasses (NWSG), fine fescues, wildflowers, or previously maintained turfgrass allowed to reach maturity. Although golf courses may use species in these areas that are not native to Kentucky, this publication will focus on the utilization of native warm-season grasses. Colloquially, these parts of the golf course are referred to as native areas, native roughs, low-mow areas, or no-mow areas. For the purposes of this publication, they are all considered synonymous.
AGR-280: University of Kentucky Blue Water Farms: Status of the Edge of Field Nutrient and Sediment Monitoring Network in Western Kentucky (Project Years 2018-2023)
Leighia Eggett, Glynn Beck, Brad Lee, Erin Haramoto, John Grove | Sep. 23, 2024 (New)
Rainfall simulations were the common way of collecting agricultural runoff water quality samples four decades ago. In these simulations, surface water runoff flow characteristics and water quality constituents of interest (nutrients, sediment) were determined by sprinkling water ten feet from the soil surface over small area delineated by a frame and gutter system in the soil of cropped field. There were several limitations to this method, including small study areas and lack of repeatability throughout the growing season due to farming activities. Many different research designs have since been developed to remedy some of these limitations, such as edge of field (EOF) monitoring.
To gather continuous and field scale EOF data, researchers from the University of Kentucky Martin-Gatton College of Agriculture, Food and Environment and the Kentucky Geological Survey are partnering with the U.S. Department of Agriculture – Natural Resources Conservation Service, Kentucky Soybean Promotion Board, the Kentucky Agricultural Development Fund, and nine anonymous landowners to establish a network of 29 EOF water quality monitoring stations distributed throughout Western Kentucky, collectively known as Blue Water Farms.
PR-848: 2023 Soybean Production Contest
Carrie Knott, Clint Hardy, Daniel Carpenter, Troy Muse, Danny Adams, Katie Hughes, Jessica James, Bronson Bass, Lance Lockhart, Tim Lax, Andy Mills, Miranda Rudolph, Darrell Simpson, Jay Stone, Jeana Trapp, John David Tucker | Sep. 5, 2024 (New)
In Kentucky, farmers grow soybeans in two common soybean production systems: full season and double crop. Farmers plant full season soybeans in the spring and harvest in fall, so they have harvested one crop in one calendar year. Farmers plant double-crop soybeans after wheat harvest in June. These soybeans are harvested later that fall, making them the second crop harvested in the same calendar year. Both systems are important to the overall production of soybean in Kentucky. To document the agronomic practices utilized by producers, an annual soybean production contest was initiated in Kentucky in 1980.
PR-847: 2024 Kentucky Small Grains Variety Performance Trial
Bill Bruening, Dalton Mertz, Gene Olson, Samuel Revolinski, Phillip Shine, Dave Van Sanford | Jul. 12, 2024 (New)
The 2024 soft red winter wheat growing season ended with Kentucky farmers harvesting approximately 410,000 acres of the 560,000 acres planted, for a total production of 31.6 million bushels of grain.
AGR-250: Remediation of the Fragipan Using Annual Ryegrass
Dottie Call, John Grove, A.D. Karathanasis, Chris Matocha, Lloyd Murdock | Jul. 2, 2024 (Minor Revision)
The fragipan is a naturally occurring restrictive soil horizon that virtually stops water movement and root growth through the soil. It commonly is located 18-32 inches below the surface of most of Kentucky's fragipan soils.
AGR-278: Bermudagrass Control for Kentucky Lawns
Kenneth Clayton, Paul Andrew Rideout, Jason Vaughn, Beth Wilson | May. 24, 2024 (New)
Bermudagrass (Cynodon dactylon), a warm-season perennial grass, increasingly has become a problem in Kentucky cool-season turfgrass. Over much of the lower Southeastern United States, bermudagrass is the king of the turfgrasses. Celebrated for its aggressive growth habit, quick recovery, and ability to tolerate low mowing heights, bermudagrass can be found everywhere from high-end golf courses and prestigious sports stadiums to home lawns.
