Numbered Publications: Plant and Soil Sciences
PR-820: 2022 Timothy and Kentucky Bluegrass Report
Jimmy Henning, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 13, 2022 (New)
Timothy (Phleum pratense) is the fourth most widely sown cool-season perennial grass used in Kentucky for forage - after tall fescue, orchardgrass, and Kentucky bluegrass. It is a late-maturing bunchgrass that is primarily harvested as hay, particularly for horses. It also can be used for grazing or wildlife habitat.
AGR-269: Barn Management for Curing Connecticut Broadleaf Cigar Wrapper Tobacco
Andy Bailey | Dec. 6, 2022 (New)
Connecticut Broadleaf tobacco is used primarily for cigar wrapper and binder and was traditionally grown in Connecticut and Massachusetts but has also been grown in Pennsylvania. In recent years, these areas have not been able to supply leaf buyers with enough wrapper leaf to meet the increasing demand for natural leaf cigar wrapper. Therefore, growers in Tennessee and Kentucky have been producing Connecticut Broadleaf to market as cigar wrapper tobacco.
PR-818: 2022 Orchardgrass Report
Jimmy Henning, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 6, 2022 (New)
Orchardgrass (Dactylus glomerata) is a high-quality, productive, cool-season grass that is well-adapted to Kentucky conditions. This grass is used for pasture, hay, green chop, and silage, but it requires better management than tall fescue for greater yields, higher quality, and longer stand life. It produces an open, bunch-type sod, making it compatible with alfalfa or red clover as a pasture and hay crop or as habitat for wildlife.
PR-819: 2022 Tall Fescue, Bromegrass and Meadow Fescue Report
Jimmy Henning, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 6, 2022 (New)
Tall fescue (Festuca arundinacea) is a productive, well-adapted, persistent, soil-conserving, cool-season grass grown on approximately 5.5 million acres in Kentucky. This grass, used for both hay and pasture, is the forage base of most of Kentucky's livestock enterprises, particularly beef cattle.
PR-817: 2022 Alfalfa Report
Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Dec. 5, 2022 (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. Tables 13 and 14 (Roundup Ready varieties) show a summary of all alfalfa varieties tested in Kentucky during the past 18 years. The UK Forage Extension website (https://forages.ca.uky.edu) contains electronic versions of all forage variety testing reports from Kentucky and surrounding states as well as a large number of other forage publications.
PR-816: 2022 Red and White Clover Report
Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Dec. 5, 2022 (New)
Red clover (Trifolium pratense L.) is a high-quality, short-lived, perennial legume used in mixed or pure stands for pasture, hay, silage, green chop, soil improvement, and wildlife habitat. This species is adapted to a wide range of climatic and soil conditions. Stands of improved varieties generally are productive for 2.5 to 3 years, with the highest yields occurring in the year following establishment. Red clover is used primarily as a renovation legume for grass pastures and hay fields. It is a dominant forage legume in Kentucky because it is relatively easy to establish and has high forage quality, yield, and animal acceptance.
PR-828: 2022 Kentucky Soybean Variety Performance Trials
Bill Bruening, Cam Kenimer, Dalton Mertz, Phillip Shine | Nov. 21, 2022 (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-814: Kentucky Corn Silage Hybrid Performance Report, 2022
Cam Kenimer, Chad Lee, Dalton Mertz, Phillip Shine, Kelsey Woodrum | Nov. 17, 2022 (New)
The objective of the Silage Corn Hybrid Performance Test is to provide unbiased forage yield and quality data for corn hybrids commonly grown for silage in Kentucky.
PR-815: 2022 Kentucky Hybrid Corn Performance Test
Cam Kenimer, Chad Lee, Dalton Mertz, Phillip Shine | Nov. 2, 2022 (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.
ID-217: Forage-Related Disorders in Cattle: Nitrate Poisoning
Michelle Arnold, Jeff Lehmkuhler, Megan Romano, Ray Smith | Oct. 24, 2022 (Minor Revision)
Nitrates are natural constituents of all plants. Under normal conditions, plants take up nitrate through their roots and transport it to the leaves for use in photosynthesis. However, photosynthesis decreases under adverse environmental conditions (e.g., drought; leaf damage due to disease, hail, frost, insects, or herbicides; cool and cloudy weather; and other plant stressors). When photosynthesis is reduced, nitrate transportation to the leaves slows also. Potentially toxic nitrate concentrations can remain in the lower stalks and stems.