Education Commons^™

G96-1279 Drinking Water: Nitrate-Nitrogen (Revised November 1998), Paul J. Jasa, Sharon Skipton, David L. Varner, Delynn Hay

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses practices recommended to manage nitrate-nitrogen in a domestic water supply. Many Nebraskans have questions about the impact of nitrate in their drinking water. Water quality monitoring shows that nitrate is present in groundwater throughout much of Nebraska and that concentrations are increasing in some areas. Nitrogen is essential for all living things as it is an essential component of protein. Nitrogen exists in the environment in many forms and changes forms as it moves through the nitrogen cycle. However, excessive concentrations of nitrate-nitrogen in drinking water can be hazardous to health, especially for infants and pregnant women.

G96-1296 Gear Up And Throttle Down -- Saving Fuel, Robert Grisso, David P. Shelton, Kenneth Von Bargen

University of Nebraska-Lincoln Extension: Historical Materials

"Gear Up and Throttle Down" is a fuel-saving practice suitable for light drawbar loads (less than 65 percent of full power) when reduced PTO speed is not a problem.

For the most efficient operation, a tractor's engine should be operated near its rated capacity. However, there are many field operations (such as light tillage, planting, cultivating, and hay raking) that do not require full tractor power. This is especially true when older implements, which were sized for a smaller tractor, are used with higher horsepower tractors. Also, many operations should be performed at a fixed field speed.

For these lighter …