Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Agricultural Impacts On Fecal Contamination Of Shallow Groundwaters In The Bluegrass Region Of Kentucky, Mark S. Coyne, J. M. Howell
Agricultural Impacts On Fecal Contamination Of Shallow Groundwaters In The Bluegrass Region Of Kentucky, Mark S. Coyne, J. M. Howell
Soil Science News and Views
Any farming practices that degrade water quality contribute to agricultural nonpoint source pollution. This is a problem in Kentucky's Bluegrass region where shallow soils and karst geology permit surface contaminants to reach groundwater quickly. Real and perceived threats to public health may make groundwater protection plans a reality if evidence for non-point source pollution in agricultural areas continues to grow.
The Fecal Coliform/Fecal Streptococci Ratio (Fc/Fs) And Water Quality In The Bluegrass Region Of Kentucky, Mark S. Coyne, J. M. Howell
The Fecal Coliform/Fecal Streptococci Ratio (Fc/Fs) And Water Quality In The Bluegrass Region Of Kentucky, Mark S. Coyne, J. M. Howell
Soil Science News and Views
In the mid 70' s, someone noticed that the ratio of two indicator bacteria in fecal wastes - fecal coliforms (FC) and fecal streptococci (FS) - was characteristic of particular animal wastes. In human wastes, the fecal coliform/fecal streptococci ratio (FC/FS ratio) was greater than 4. In domesticated animals, like cattle, the ratio was between 0.1 and 4.0. In wild animals, the ratio was less than 0.1. Since that time, many attempts have been made to use the ratio to determine the source of fecal bacteria in contaminated ground water.
Control Of Rodents In No-Till Corn, Lloyd W. Murdock
Control Of Rodents In No-Till Corn, Lloyd W. Murdock
Soil Science News and Views
The prairie vole is probably the primary rodent that reduces no-till crop plant stands in Kentucky. Because the vole requires a full canopy cover for protection from predators, established grass or legume sod fields and field borders (including wheat or rye stubble, set-aside and cover crop seedings) provide an ideal habitat.
Estimated Nutrient Content And Uptake By Kentucky's Crops, Kenneth L. Wells, William O. Thom
Estimated Nutrient Content And Uptake By Kentucky's Crops, Kenneth L. Wells, William O. Thom
Soil Science News and Views
A commonly asked question by crop producers is, "how many pounds of plant nutrients do my crops take up?" While the absolute answer to this varies by yield and soil fertility, useful estimates can be made from research data to enable a producer to have a "ballpark" value for nutrient up-take by some of the major crops of Kentucky. The following tables contain estimates of nitrogen (N), phosphorus (P),and potassium (K) contained in certain crops and the amount of N, phosphate (P2O5), and potash (K,O) taken up by tobacco, corn, soybeans, wheat, alfalfa hay, clover grass …