University of Kentucky

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Frank Sikora

Agricultural Lime Recommendations Based on Lime Quality
1/13/2016 (major revision)

 UK Authors: David Ditsch, Josh McGrath,
 Departments: Plant and Soil Sciences, Regulatory Services
 Series: Interdepartmental (ID series)
 Tags: nutrient management, soil and land

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.

web only | 6 pages | 2,749 words | 78 downloads | PDF: 485 kb

Taking Soil Test Samples
9/4/2007 (reprinted)

 UK Authors: Lloyd Murdock, Greg Schwab,
 Departments: Plant and Soil Sciences, Regulatory Services
 Series: Agronomy (AGR series)
 Tags: nutrient management, soil and land

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.

2,500 printed copies | 4 pages | - | 59 downloads | PDF: 150 kb

Using Animal Manures as Nutrient Sources
8/1/2000 (minor revision)

 UK Authors: Monroe Rasnake, Frank Sikora,
 Departments: Plant and Soil Sciences
 Series: Agronomy (AGR series)
 Tags: nutrient management

3,000 printed copies | 4 pages | - | 37 downloads | PDF: 330 kb

Agronomy Research Report 2000
7/10/2000 (new)

 UK Authors: Richard Barnheisel, Morris Bitzer,
 Departments: Animal and Food Sciences, Biosystems and Agricultural Engineering,
 Series: Progress Report (PR series)

2,500 printed copies | 55 pages | - | 5 downloads | PDF: 550 kb