Numbered Publications: Plant and Soil Sciences
AGR-282: Warm-Season Native Areas for Kentucky Golf Courses
Kenneth Clayton, Elizabeth Johnson | September 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 | September 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 Tucker | September 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.
ID-128: Home Vegetable Gardening in Kentucky
Ric Bessin, Rick Durham, Brad Lee, Rachel Rudolph, Mark Williams, Shawn Wright | July 22, 2024 (Minor Revision)
A well-planned and properly kept garden should produce 600 to 700 pounds of produce per 1,000 square feet and may include many different crops. Consult "Vegetable Cultivars for Kentucky Gardens" (ID-133) for the latest recommendations on home vegetable varieties.
PR-847: 2024 Kentucky Small Grains Variety Performance Trial
Bill Bruening, Dalton Mertz, Gene Olson, Samuel Revolinski, Phillip Shine, Dave Sanford | July 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 | July 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 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.
AGR-259: Multi-SOA Pre-emergence Herbicides for Palmer Amaranth and Waterhemp Control
Travis Legleiter | April 24, 2024 (Minor Revision)
Waterhemp and Palmer amaranth are among the most troublesome and hard to control weeds in soybean fields in Kentucky. Both species have spread across the state over the past ten to fifteen years. Resistance to ALS-inhibiting herbicides [Group 2] and glyphosate [Group 9] is widespread in both species, while PPO-resistance [Group 14] is continually spreading especially in waterhemp. Herbicide manufacturers have developed several herbicide premix formulations targeted at controlling waterhemp and Palmer amaranth that contain multiple effective sites of action, thus farmers have options to choose from.
AGR-276: Kentucky Land Capability Classes and Limitations
John Grove, Brad Lee, Edwin Ritchey | March 19, 2024 (New)
The USDA NRCS has established a national land classification system to help landowners and farm operators with land use planning. This system classifies land for agricultural purposes by the intensity with which it can be used for crop production and by the nature of the limiting problem. In general, the better the Land Class (lower numeric values), the less management is necessary to produce a crop while protecting the soil resource and the environment.
ID-277: The Great Debate of Annual vs. Perennial Forages
Kenny Burdine, Kelly Mercier, Ray Smith | March 13, 2024 (New)
The organic dairy sector in Kentucky and Tennessee contributed $9.3 million in organic product sales in 2019 (USDA-NASS, 2020), with organic milk sales in Kentucky alone rising 61% from 2017 to 2019 (USDA, NASS, Kentucky Field Office, 2020). Organic dairies rely more heavily on pastures as a significant source of dry matter intake compared to most conventional dairies.