Numbered Publications: Plant and Soil Sciences
PR-829: 2021 Soybean Yield and Quality Contest
Matt Adams, Clint Hardy, Katie Hughes, Carrie Knott, Brett Mitchell, Troy Muse, Dana O'Nan, Conner Raymond, Paul Andrew Rideout, Darrell Simpson | Sep. 7, 2023 (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 them that 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. Therefore, in 1980, an annual soybean yield contest was initiated in Kentucky to document the agronomic practices utilized
by producers.
PR-830: 2022 Soybean Yield and Quality Contest
Danny Adams, Matt Adams, Jessica Buchman, Daniel Carpenter, Clint Hardy, Katie Hughes, Carrie Knott, Lance Lockhart, Cole Mattingly, Brett Mitchell, Michael Mullican, Troy Muse, Conner Raymond, Glen Roberts, Vicki Shadrick, Darrell Simpson, Gary Stockton | Sep. 7, 2023 (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 them that 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. Therefore, in 1980, an annual soybean yield contest was initiated in Kentucky to
document the agronomic practices utilized by producers.
ID-1: The Kentucky Extension Master Gardener Program
Sharon Bale, Tom Barnes, Jessica Bessin, Kenneth Clayton, Rick Durham, Bill Fountain, J.D. Green, Kelly Jackson, Krista Jacobsen, Jonathan Larson, Brad Lee, Kimberly Leonberger, Adam Leonberger, Gregg Munshaw, A.J. Powell, Edwin Ritchey, Rachel Rudolph, Robbie Smith, Matthew Springer, Lee Townsend, Nicole Ward Gauthier, Stacy White, Mark Williams, Erica Wood, Shawn Wright | Aug. 24, 2023 (New)
Plants are essential to life on earth. Either directly or indirectly, they are the primary food source for humans and other animals. Additionally, they provide fuel, replenish the earth's oxygen supply, prevent soil erosion, slow down wind movement, cool the atmosphere, provide wildlife habitat, supply medicinal compounds, and beautify our surroundings.
PR-831: 2023 Kentucky Small Grains Variety Performance Trial
Bill Bruening, Cam Kenimer, Dalton Mertz, Gene Olson, Phillip Shine, Dave Van Sanford | Jul. 12, 2023 (New)
The objective of the Kentucky small grain variety performance trial is to evaluate varieties of wheat, oat, barley, triticale, and cereal rye that are commercially available or may soon be available to Kentucky farmers. New varieties continually are being developed by agricultural experiment stations and commercial firms. Annual evaluation of small grain varieties and selections 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.
4BA-08MJ: 4-H Agricultural Land Judging and Homesite Evaluation in Kentucky
Bob Pearce, Edwin Ritchey | Apr. 17, 2023 (Minor Revision)
Land judging is a way of appraising the physical nature and capability of soils. Certain soil properties, such as slope, depth, and color, that can be seen, felt, or measured, are reliable indicators of soil characteristics that impact crop growth and productivity. Land judging does not replace soil testing. Laboratory tests that determine the chemical and physical nature of soil help us predict plant response to lime and fertilizer, estimate the amount of a waste product that can be safely applied to the soil, and determine the limitations for uses such as homesites and roads.
AGR-273: Soil Acidity: What It Is, How It Is Measured, Why It Is Important
John Grove, Edwin Ritchey | Apr. 13, 2023 (New)
Soil chemical health is strongly related to soil acidity. This acidity consists of acidic cations, hydrogen (H+), aluminum (Al3+), and in some soils, manganese (Mn2+). The acid cations are neutralized by basic anions, carbonate (CO32-), hydroxyl (OH-), and oxide (O2-) provided by materials such as agricultural, hydrated/slaked, and quick/burnt limes, respectively. Lime application rates are based on the amount of acidity measured in your soil sample.
ID-274: Economic Efficiency in Organic Dairy Operations
John Allison, Kenny Burdine, Ray Smith | Apr. 3, 2023 (New)
Organic dairy operations have historically commanded a higher milk price than conventional dairy operations (Organic all milk price 2021 average: $31.55 per hundredweight (USDA AMS, 2021), Conventional all milk price 2021 average: $20.25 per hundredweight (USDA ERS, 2021)). However, the economics of decision-making and management still play a pivotal role in farm profitability.
AGR-270: Restoring a Flood-damaged Lawn
Kenneth Clayton, Paul Andrew Rideout, Jason Vaughn, Beth Wilson | Mar. 14, 2023 (New)
Flooding across Kentucky has been an increasing problem in recent years and has caused significant damage to many properties, including home lawns. The deterioration or death of turfgrass is often caused by grass being smothered with silt and sand deposits left from the flood or grass being submerged under water for prolonged periods. Lack of oxygen to the plant can cause death when submerged, and the rate of death is often worse with higher water temperatures. Repairing these areas is important for reducing chances of erosion as well as allowing a return to the regular use of the lawn.
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.
AGR-1: Lime and Fertilizer Recommendations, 2020-2021
Josh McGrath, Edwin Ritchey | Mar. 13, 2023 (Revised)
Recommended nutrient additions, based on a soil test, are only made when a crop yield or economic response has been measured for that crop under Kentucky soil-climatic conditions. Many field studies have been conducted by the Kentucky Agricultural Experiment Station under Kentucky farm conditions to determine the extent of any primary, secondary, or micronutrient needs. Yield and soil test data from these studies serve as guidelines for establishing recommendations contained in this publication. Recommendations in this publication strive to supply the plant nutrients needed to achieve maximum economic return assuming good management practices.
