Numbered Publications: ID
ID-163: Agricultural Lime Recommendations Based on Lime Quality
David Ditsch, Josh McGrath, Lloyd Murdock, Edwin Ritchey, Frank Sikora | Mar. 13, 2023 (Revised)
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.
ID-123: Livestock Waste Sampling and Testing
Doug Overhults, Monroe Rasnake | Mar. 13, 2023 (Revised)
It is estimated that about 25 million tons of animal manure are currently produced on Kentucky farms each year. Most of this is deposited by grazing animals on pastures where the nutrients are recycled. However, an increasing percentage is accumulated in feed lots, barns, poultry houses, lagoons, and other facilities until it can be spread on the land.
ID-199: Prechilling Switchgrass Seed on Farm to Break Dormancy
Holly Boyd, Cindy Finneseth, Tom Keene, Laura Schwer, Ray Smith | Mar. 13, 2023 (Revised)
Switchgrass (Panicum virgatum L.) is a warm-season, perennial bunch-type grass native to the North American Tallgrass Prairie. It has been investigated as a renewable energy crop due to its high productivity across a wide geographic range including various environmental conditions and soil types. Switchgrass has also been used for erosion control, summer grazing in pasture and hay systems for cattle, native prairie restoration, wildlife habitat, fiber production, and as an ornamental grass.
ID-160: Burley and Dark Tobacco Production Guide, 2023-2024
Andy Bailey, Ric Bessin, Lowell Bush, Ann Fisher, J.D. Green, Bill Pearce, Edwin Ritchey, Wayne Sanderson, Will Snell | Jan. 17, 2023 (Major Revision)
The 2022 season will be remembered as a year of extremes in weather patterns. Early in the field season, 2022 brought extreme drought and heat during transplanting in May and June followed by excessive rainfall in July in some areas. These conditions led to growers making significant replanting decisions as transplant shock was very widespread. There was a return of extremely dry conditions in August that extended through nearly the entire curing season. It was the driest field conditions that most burley and dark tobacco growers have experienced since 2012, and the driest curing season that many growers could recall. 2022 further emphasized the importance of access to irrigation to sustain the tobacco crop through extended dry periods in the field, as well as tight barns that allow management of air-flow to moderate the effects of dry curing seasons.
ID-139: A Comprehensive Guide to Corn Management in Kentucky
Carl Bradley, J.D. Green, John Grove, Greg Halich, Erin Haramoto, Cam Kenimer, Carrie Knott, Chad Lee, Travis Legleiter, Sam McNeill, Michael Montross, Hanna Poffenbarger, Dan Quinn, Edwin Ritchey, Montse Salmeron, Jordan Shockley, Tim Stombaugh, Raul Villanueva, Ole Wendroth, Kiersten Wise | Dec. 13, 2022 (Major Revision)
Corn is a summer annual crop that is grown widely across Kentucky, the United States, and around the world. In the United States, field corn is grown on about 85 million acres (34 million hectares) while sweet corn is grown on about 600,000 acres (240,000 hectares) and popcorn is grown on about 200,000 acres (81,000 hectares). Most of the field corn across the United States is yellow dent corn. In Kentucky, both yellow dent corn and white dent corn are grown. Corn acres in Kentucky peaked at 3.85 million in 1917 and have been around 1.2 to 1.5 million acres since the 1970s (USDA-NASS, 2020). Most corn in Kentucky today is grown in minimum tillage or no-tillage conditions. Most corn acres are rotated with soybean or wheat and double-crop soybeans.
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.
ID-2: Guide to Plants of Kentucky Potentially Poisonous to Livestock
Michelle Arnold, J.D. Green, Megan Romano | Apr. 22, 2022 (Minor Revision)
Poisonous plants are responsible for considerable losses to farmers and stockmen in Kentucky. Many cases of plant poisoning are never diagnosed or even suspected. There are nearly 100 different species of plants growing in Kentucky that under certain conditions may be poisonous to livestock, although only one third of these are likely to cause serious trouble. The primary purpose of this publication is to enable individuals to recognize, at sight, some plants which are known to be dangerously poisonous, and to have knowledge of those additional plants, which, under certain conditions, may cause trouble.
ID-196: UK Ag Equine Programs Calendar, 2022
Bob Coleman | Dec. 9, 2021 (Minor Revision)
The information in this calendar is provided to aid owners in planning for the care and use of their horses. When necessary, information is discussed in the month prior to application to allow horse owners adequate time to plan for activities such as weed control, soil testing, and vaccinations. Contact your local veterinarian for health-related issues and your county extension agent for further information.
ID-271: Equine Layout and Facility Planning Checklist
Bob Coleman, Morgan Hayes | Oct. 13, 2021 (New)
Horse facilities should be planned and laid out to meet the needs and goals of the operation. Horse owners need to consider how horses, humans, vehicles, equipment, and water will flow through the operation. This publication is designed to help horse owners design or redesign their facilities.
ID-269: Using Electric Offsets as Part of Fencing Systems
Morgan Hayes, Chris Teutsch | Aug. 18, 2021 (New)
The objective of this publication is to provide practical tips for installing electrified offsets that can effectively control livestock and extend the life of new and existing fencing.
