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Life Sciences

Series

Water

1997

Articles 1 - 6 of 6

Full-Text Articles in Education

G97-1333 Drinking Water: Lead, Sharon Skipton, Delynn Hay Jan 1997

G97-1333 Drinking Water: Lead, Sharon Skipton, Delynn Hay

University of Nebraska-Lincoln Extension: Historical Materials

Too much lead in the human body can cause serious damage to the brain, kidneys, nervous system and red blood cells. This NebGuide discusses practices to address lead in a domestic water supply. Lead in Drinking Water Small quantities of lead can be a serious health concern, especially for children. Sources of lead in the environment include lead-based paint; lead contaminated soil, air and dust; lead contaminated food; imported food in lead-soldered cans; non-FDA regulated ceramics with lead glazes; leaded crystal and lead contaminated drinking water.


Ec97-781 Livestock Systems Environmental Assessment, Richard K. Koelsch Jan 1997

Ec97-781 Livestock Systems Environmental Assessment, Richard K. Koelsch

University of Nebraska-Lincoln Extension: Historical Materials

The goal of this assessment package is to help a livestock producer confidentially evaluate their stewardship of water and air resources. Protecting both the groundwater that supplies your drinking water and the surface waters that provide recreational opportunities is in the interests of every livestock producer. The worksheets will assist you in estimating the quantity of nutrients in the manure from your livestock; guide you through a step-by-step evaluation of your livestock system for possible impacts on water and air quality; and help you identify your operation's enviornmental strengths and weaknesses.


Nf97-338 Making Decisions: Household Water Saving Equipment And Practices, Shirley Niemeyer Jan 1997

Nf97-338 Making Decisions: Household Water Saving Equipment And Practices, Shirley Niemeyer

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact provides information about water-saving practices in the household.


G97-1340 Firming Irrigation Furrows To Improve Irrigation Performance (Revised November 1999), Dean E. Eisenhauer, C. Dean Yonts Jan 1997

G97-1340 Firming Irrigation Furrows To Improve Irrigation Performance (Revised November 1999), Dean E. Eisenhauer, C. Dean Yonts

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes how using a furrow firming wheel improves furrow irrigation performance.

Nearly half of the irrigated acres in Nebraska are furrow irrigated. Higher pumping costs, water restrictions and water shortages are all factors encouraging efficiency-improving irrigation practices. Generally, reduced efficiency with furrow irrigation occurs in two ways: runoff or deep percolation. Although hard to eliminate, runoff can be controlled by: tailwater reuse systems; changing furrow stream size; or changing irrigation set time. Deep percolation is the loss of water below the root zone. The amount of deep percolation caused by irrigation is difficult to estimate unless irrigation application …


G979-1337 Application Uniformity Of In-Canopy Sprinklers (Revised November 1999), C. Dean Yonts, William L. Kranz, Derrel L. Martin Jan 1997

G979-1337 Application Uniformity Of In-Canopy Sprinklers (Revised November 1999), C. Dean Yonts, William L. Kranz, Derrel L. Martin

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes water management and system design considerations when using in-canopy sprinklers for center pivot irrigation systems. The goal, when using center pivot irrigation, is to uniformly distribute water on the soil surface. Uniform application of water combined with uniform infiltration of water into the soil gives plants equal access to water. As a method to reduce energy costs, many producers are converting their center pivot systems from high to medium or low pressure sprinkler packages. In response, sprinkler manufacturers have developed new devices for use above and below the center pivot pipeline to uniformly apply water at lower …


Ec97-782 Water Quality Criteria For Irrigation, Glenn J. Hoffman Jan 1997

Ec97-782 Water Quality Criteria For Irrigation, Glenn J. Hoffman

University of Nebraska-Lincoln Extension: Historical Materials

In irrigated agriculture, the hazard of salt water is a constant threat. Poor-quality irrigation water is generally more concerning as the climate changes from humid to arid conditions. Salinity is not normally a threat where precipitation is a major source of salt-free water for crop production. Water entering the soil which is not stored or consumed by evapotranspiration moves through the crop root zone, eventually reaching the water table. This percolating process flushes (leaches) soluble salts. Less rainfall means smaller amounts of precipitation available to leach salts. In Nebraska, rainfall decreases from 30 inches in the east to 15 inches …