Numbered Publications: Plant and Soil Sciences
PR-786: 2020 Annual and Perennial Ryegrass and Festulolium Report
Jimmy Henning, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Nov. 20, 2020 (New)
Annual ryegrass (Lolium multiflorum) and perennial ryegrass (Lolium perenne) are high-quality, productive, cool-season grasses used in Kentucky. Both have exceptionally high seedling vigor and are highly palatable to livestock. Perennial ryegrass can be used as a short-lived hay or pasture plant and has growth characteristics similar to tall fescue. Festuloliums are hybrids between various fescues and ryegrasses with higher quality than tall fescue and improved stand survival over perennial ryegrass.
PR-781: 2020 Alfalfa Report
Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Nov. 16, 2020 (New)
Alfalfa (Medicago sativa) has historically been the highest-yielding, highest-quality forage legume grown in Kentucky. It is an important part of Kentucky's cash hay enterprise and is an important component in dairy, horse, beef, and sheep diets. Choosing a good variety is a key step in establishing a stand of alfalfa. The choice of variety can impact yield, thickness of stand, and persistence. This report provides yield data on alfalfa varieties included in current yield trials in Kentucky as well as guidelines for selecting alfalfa varieties.
PR-782: 2020 Red and White Clover Report
Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Nov. 16, 2020 (New)
This report provides current yield and persistence data on red and white clover varieties included in yield trials in Kentucky as well as guidelines for selecting clover varieties. Tables 14 and 15 show a summary of all clover varieties tested in Kentucky for the past 15 years. The UK Forage Extension website at forages.ca.uky.edu contains electronic versions of all forage variety testing reports from Kentucky and surrounding states and a large number of other forage publications.
PR-780: 2020 Kentucky Hybrid Corn Performance Test
Cam Kenimer, Chad Lee, Phillip Shine | Nov. 16, 2020 (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-261: Double Crop Soybean Production in Kentucky
Carrie Knott | Oct. 20, 2020 (New)
The double crop soybean system was pioneered in Kentucky. Traditionally, double crop soybean are planted in June following harvest of a small grain: wheat, barley, and in some cases cereal rye. Since the early 2000's, about 25% of the total soybean production in Kentucky has been double crop soybean. Many agronomic management strategies are similar between double crop soybean and full season soybean: soybean planted in the spring following corn from the previous year. However, there are certain management strategies that are important for double crop soybean, which not only increase yield potential but also offer opportunities to increase profitability.
AGR-256: Identification of Palmer Amaranth, Waterhemp and Other Pigweed Species
Travis Legleiter | Oct. 16, 2020 (New)
Palmer amaranth (Amaranthus palmeri) and waterhemp (Amaranthus tuberculatus) are two species of the Amaranthus family that have enveloped the corn and soybean growing landscape of the United State over the past decade. Herbicide resistant Palmer amaranth first began infesting western Kentucky along the Mississippi and Ohio rivers in the early 2000's and has spread along the rivers and into the uplands over the last two decades. The introduction and spread of waterhemp had not been as widespread in Kentucky, although a rapid spread of waterhemp over the last 5 to 10 years has been noted especially in central Kentucky. Both Amaranthus species can be very difficult to control in soybean and corn due to herbicide resistance. The first step in effectively managing or controlling both species is to properly identify them when they first invade your fields. Early management decisions when Palmer amaranth and waterhemp first invade is key to long-term control.
AGR-258: Production of Connecticut Broadleaf Cigar Wrapper Tobacco in Kentucky and Tennesse
Andy Bailey, Bob Pearce | Sep. 29, 2020 (New)
There has been recent interest from tobacco dealers in purchasing Connecticut Broadleaf tobacco produced in Kentucky and Tennessee. Connecticut Broadleaf has traditionally been grown in areas of the Connecticut River Valley in Connecticut and Massachusetts. However, decreased production in this area along with increased demand for natural leaf cigar wrappers has caused tobacco dealers to pursue other tobacco-producing areas for this type. At first glance, Connecticut Broadleaf tobacco resembles dark air-cured tobacco, but generally has enhanced leaf quality characteristics that can increase its potential value for use as cigar binders and wrappers.
ID-264: Feeding Corn Silage to Beef Cattle
Donna Amaral-Phillips, Greg Halich, Chad Lee, Jeff Lehmkuhler, Katherine VanValin | Sep. 29, 2020 (New)
Kentucky is in the upper transition zone which allows for the growth of warm- and cool-season forages. Corn, a warm season grass, grows well in the state and may be harvested for either grain or silage. Corn harvested as silage can be an economical alternative for beef cattle. Implementing sound management strategies and determining the nutrient content to balance rations will allow for successful feeding of corn silage to beef cattle.
AGR-253: Identifying Freeze Damage in Wheat
Carrie Knott | Aug. 11, 2020 (New)
Wheat and other small grains can be damaged when air temperatures fall below certain thresholds for two or more continuous hours. These temperatures do not necessarily mean that damage will occur. Rather, these temperatures are general guidelines of when damage may occur. It is important that the crop be scouted to determine the extent of the damage, if any.
ID-224: Producer's Guide to Pasture-Based Beef Finishing
Greg Halich, Jeff Lehmkuhler, Lee Meyer, Gregg Rentfrow, Ray Smith | Jul. 13, 2020 (Reprinted)
Will pasture-finished beef eventually become a commodity with lowered product prices? These and other questions must be evaluated by those considering pasture-based beef finishing. As with any new enterprise, however, the learning curve is steep, and success requires a commitment to working through the many production, marketing, and processing details. This reference guide provides a foundation for this process.