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Frank Sikora


Taking Soil Test Samples

3/13/2023 (revised)
Authors: Lloyd Murdock, Greg Schwab, Frank Sikora, Bill Thom

The most important part of making fertilizer recommendations is collecting a good, representative soil sample. Soil test results and fertilizer recommendations are based solely on the few ounces of soil submitted to the laboratory for analysis. These few ounces can represent several million pounds of soil in the field. If this sample does not reflect actual soil conditions, the results can be misleading and lead to costly over- or under-fertilization. It is necessary to make sure that the soil sample sent to the laboratory accurately represents the area sampled.

Departments: Plant and Soil Sciences, Regulatory Services
Series: Agronomy (AGR series)
Size: 353 kb
Pages: 4


Agricultural Lime Recommendations Based on Lime Quality

3/13/2023 (revised)
Authors: David Ditsch, Josh McGrath, Lloyd Murdock, Edwin Ritchey, Frank Sikora

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.

Departments: Plant and Soil Sciences, Regulatory Services
Series: Interdepartmental (ID series)
Size: 473 kb
Pages: 6


Science of Hemp: Production and Pest Management, 2020

3/13/2020 (new)
Authors: Bernadette Amsden, Samantha Anderson, Ric Bessin, Susan Fox, Nicole Ward Gauthier, Ross Guffey, Tom Keene, Tyler Mark, Bob Pearce, Christopher Schardl, Jonathan Shepherd, Frank Sikora, Desiree Szarka, Raul Villanueva

Hemp is grown for fiber, grain, and cannabinoid extraction in Asia, Europe, and the Americas. Until recently, Cannabis sativa has been classified as a Schedule 1 controlled substance in the US. The Agricultural Act of 2014 (Farm Bill) allowed for reintroduction of industrial hemp under a pilot research program. Acreage increases and addition of state legislation resulted in over 78,000 acres of hemp grown in 23 states by the end of 2018. Hemp became a legal commodity under the 2018 Farm Bill, and by the end of 2019, over 500,000 licensed acres were documented across 45 states. Canada re-introduced the crop in 1998, and in 2018, almost 78,000 acres of hemp were licensed and planted.

Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Graves County, Lyon County, Plant and Soil Sciences, Plant Pathology, Regulatory Services
Series: Special Report (SR series)
Size: 9.60 mb
Pages: 54


Soil Testing: What It Is and What It Does

8/15/2000 (minor revision)
Authors: Lloyd Murdock, Frank Sikora, Bill Thom, Ken Wells

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 253 kb
Pages: 2


Using Animal Manures as Nutrient Sources

8/1/2000 (minor revision)
Authors: Monroe Rasnake, Frank Sikora, Bill Thom

Departments: Plant and Soil Sciences
Series: Agronomy (AGR series)
Size: 330 kb
Pages: 4


Agronomy Research Report 2000

7/10/2000 (new)
Authors: Richard Barnheisel, Morris Bitzer, Jimmie Calvert, Glenn Collins, Mike Collins, Mark Coyne, David Ditsch, Charles Dougherty, Larry Grabau, J.D. Green, Dan Grigson, John Grove, Dennis Hancock, Jimmy Henning, Jim Herbek, John James, John Johns, A.D. Karathanasis, Brenda Kennedy, Garry Lacefield, Eugene Lacefield, Len Lauriault, Bill Maksymowicz, Jim Martin, Bob Miller, Tom Mueller, Gregg Munshaw, Lloyd Murdock, Gary Palmer, Bob Pearce, Todd Pfeiffer, Chuck Poneleit, A.J. Powell, Monroe Rasnake, Edwin Ritchey, Scott Shearer, Frank Sikora, Robert Spitaleri, Norm Taylor, Charles Tutt, Dave Van Sanford, Paul Vincelli, Ken Wells, David Williams, Bill Witt

Departments: Animal and Food Sciences, Biosystems and Agricultural Engineering, County Extension, Plant and Soil Sciences, Plant Pathology, Regulatory Services
Series: Progress Report (PR series)
Size: 550 kb
Pages: 55