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Full-Text Articles in Education

How Do We Know There Is A Population-Environment Problem?, Peter J. Taylor Mar 2000

How Do We Know There Is A Population-Environment Problem?, Peter J. Taylor

Working Papers on Science in a Changing World

Five fictional friends of the author have agreed to meet and talk, hoping that he was right when he claimed that discussion crossing the usual boundaries of their fields would enrich their different inquiries and concerns. Ecolo, a natural and human ecologist, breaks the ice. He wants to marshall scientific knowledge to persuade others of the seriousness of the population problem. He is questioned by Philoso, whose philosophical bent leads her to observe the models that people use and to ask how they support the claims they make. In turn, the other three join in: Activo, an activist who is ...


Ec00-1879 Sorghum Ergot In The Northern Great Plains, Jim Stack Jan 2000

Ec00-1879 Sorghum Ergot In The Northern Great Plains, Jim Stack

Historical Materials from University of Nebraska-Lincoln Extension

Sorghum is grown throughout Nebraska on approximately 0.6 million acres of land. It is grown as a forage crop as well as a grain crop. There is no significant commercial seed production in Nebraska. Grain sorghum is used domestically as livestock feed, in ethanol production, and to a limited extent as a food crop.

Grain sorghum is also exported to several countries. All sorghum hybrids (grain and forage) are susceptible to ergot disease. Ergot is a disease that impacts sorghum production directly by infecting unfertilized flowers and preventing seed development. Ergot also impacts sorghum production indirectly. Affected fields with ...


G00-1778 Field Windbreaks, James R. Brandle, Laurie Hodges Jan 2000

G00-1778 Field Windbreaks, James R. Brandle, Laurie Hodges

Historical Materials from University of Nebraska-Lincoln Extension

gricultural producers face many challenges as they try to balance efficient production systems with increasing environmental demands. For these systems to be successful, they must optimize the balance between inputs and final production. Field windbreaks are one way to increase yields while at the same time reducing inputs and improving both environmental quality and production efficiency. Windbreaks reduce wind speed and alter the microclimate in sheltered areas. Field windbreaks reduce wind erosion and the damage to crops caused by wind-blown soil. They improve water use efficiency, reduce risks associated with drought, and manage blowing snow.

Field windbreaks provide positive economic ...


G98-1370 Abandonment Planning For Earthen Manure Storages, Holding Ponds And Anaerobic Lagoons, Richard K. Koelsch Jan 1998

G98-1370 Abandonment Planning For Earthen Manure Storages, Holding Ponds And Anaerobic Lagoons, Richard K. Koelsch

Historical Materials from University of Nebraska-Lincoln Extension

The purpose of this NebGuide is to define some critical issues to be addressed by an abandonment plan of an earthen manure storage, anaerobic lagoon or runoff holding pond.

A Nebraska construction permit for a Livestock Waste Control Facility (LWCF) requires a written plan defining possible abandonment procedures in the event the operation (and associated LWCF) is discontinued. The plan must be approved by the Nebraska Department of Environmental Quality (NDEQ) prior to permit issuance.


Nf97-332 Contacts For Environmental Issues Affecting Residences Web Sites And Toll-Free And Other Numbers, Shirley Niemeyer Jan 1997

Nf97-332 Contacts For Environmental Issues Affecting Residences Web Sites And Toll-Free And Other Numbers, Shirley Niemeyer

Historical Materials from University of Nebraska-Lincoln Extension

This NebFact has information on toll-free and other numbers and addresses dealing with questions relating to the environment and households.


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

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

Historical Materials from University of Nebraska-Lincoln Extension

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.


G96-1306 Feeding Dairy Cows To Reduce Nitrogen, Phosphorus, And Potassium Excretion Into The Environment, Rick J. Grant Jan 1996

G96-1306 Feeding Dairy Cows To Reduce Nitrogen, Phosphorus, And Potassium Excretion Into The Environment, Rick J. Grant

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide discusses feeding strategies to optimize dairy cow performance while minimizing negative environmental impacts.

Reducing N, P and K Excretion--The Challenge

Increasingly, our society demands livestock production systems that not only produce economic, high-quality food products, but also minimize negative environmental impacts. Feeding management has improved continuously and helps explain increases in milk production averages. The future challenge for dairy producers and nutritionists will be to properly formulate rations for high production levels while simultaneously minimizing the environmental impact of excessive N, P and K excretion in the urine and manure. A realistic approach will be to keep formulation ...


G95-1271 Mastitis Is A Disease -- Control Is An Everyday Task, Gerald R. Bodman, Duane N. Rice Jan 1995

G95-1271 Mastitis Is A Disease -- Control Is An Everyday Task, Gerald R. Bodman, Duane N. Rice

Historical Materials from University of Nebraska-Lincoln Extension

A comprehensive mastitis control program will effectively control infections caused by both environmental and contagious pathogens.

Herd mastitis problems can be caused by both environmental and contagious pathogens (disease-causing organisms). These problems may occur separately or simultaneously. Various testing techniques are necessary to determine the type of causative organism and the infection level of the herd or individual cow. Appropriate tests include the CMT (California Mastitis Test), milk market somatic cell count (SCC), Dairy Herd Improvement Association (DHIA) SCC and laboratory cultures of milk from infected cows. Depending upon test results, mastitis control strategies may need to be changed to ...


Ec95-739 Pollution Prevention: A Tool Kit For Farm Cooperatives, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab Jan 1995

Ec95-739 Pollution Prevention: A Tool Kit For Farm Cooperatives, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab

Historical Materials from University of Nebraska-Lincoln Extension

Would you like to:

• Reduced your operating costs by using fewer materials and supplies
• Reduce hazardous and nonhazardous waste transportation and disposal costs
• Reduce liability and risks associated with hazardous waste?
• Reduce the paperwork and record keeping requirements associated with hazardous waste?
• Improve workplace safety and employee health?
• Help safeguard the environment?
• Improve your company's image?
• Increase your company's business activities?

If you answered "Yes," to any of the above questions, you may want to look at the materials in this pollution prevention tool kit.


Ec95-741 Pollution Prevention: A Tool Kit For Drycleaners, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab Jan 1995

Ec95-741 Pollution Prevention: A Tool Kit For Drycleaners, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab

Historical Materials from University of Nebraska-Lincoln Extension

Would you like to:

• Reduce your operating costs by using fewer materials and supplies?
• Reduce hazardous and nonhazardous waste transportation and disposal costs?
• Reduce liability and risks associated with hazardous waste?
• Reduce the paperwork and record keeping requirements associated with hazardous waste?
• Improve workplace safety and employee health?
• Help safeguard the environment?
• Improve your company's image?
• Increase your company's business activities?

If you answered "Yes," to any of the above questions, you may want to look at the materials in this pollution prevention tool kit.


Ec95-745 Managing Livestock Odors: Principles, Assessment And Planning, Richard K. Koelsch Jan 1995

Ec95-745 Managing Livestock Odors: Principles, Assessment And Planning, Richard K. Koelsch

Historical Materials from University of Nebraska-Lincoln Extension

Odors associated with livestock manure represent a growing challenge for livestock producers. Livestock production trends such as more animals per farm and expanded reliance upon manure storage have added to the odor muisance. Implementing other environmentally friendly practices such as manure nutrient management and maintenance of surface crop residues for soil conservation also have resulted in additional odor challenges.

Odors originating from livestock wastes are a common source of irritation between producers and neighbors. Confrontations may lead to more stringent local zoning regulations, greater scrutiny of other farm environmental issues, and litigation.

This publication summarizes the underlying causes of livestock ...


Ec95-817 Nebraska Agricultural Producers Preferences For National Agriculture, And Food Policy After 1995, A.L. (Roy) Frederick, Glenn A. Helmers, Steven L. Elmore Jan 1995

Ec95-817 Nebraska Agricultural Producers Preferences For National Agriculture, And Food Policy After 1995, A.L. (Roy) Frederick, Glenn A. Helmers, Steven L. Elmore

Historical Materials from University of Nebraska-Lincoln Extension

Farmers' preferences are important in the development of farm bills. In that spirit, the Department of Agricultural Economics at the University of Nebraska-Lincoln and the Nebraska Agricultural Statistics Service recently asked a random sample of agricultural producers about their preferences for the 1995 farm bill. Similar surveys were undertaken in 1984 and 1989, prior to the last two farm bills. Each Nebraska survey was part of a larger, national effort. This year, 15 states, scattered across all regions of the United States, participated.

The purpose of this report is to summarize Nebraska producers' views on key issues likely to be ...


G95-1253 Basic Principles Of Mastitis Control, Jeffrey F. Keown, Paul J. Kononoff Jan 1995

G95-1253 Basic Principles Of Mastitis Control, Jeffrey F. Keown, Paul J. Kononoff

Historical Materials from University of Nebraska-Lincoln Extension

Mastitis in dairy cows is a frustrating, costly, and complex infection. A good, workable, effective preventive control program is presented in this NebGuide.

General Characteristics of Mastitis

Mastitis is an inflammation of the mammary gland usually caused by bacterial infection of udder tissues. Except for rare injuries, infectious bacteria or other pathogens, e.g. yeast, fungi, etc., enter the udder through the teat end. Mastitis in both clinical (obvious abnormality, visible to naked eye) and subclinical (unseen signs of abnormality, invisible to nake eye) stages is a frustrating, costly and complex disease that reduces the quality and quantity of milk.


G94-1213 Child Care Environment Safety Checklist, Shirley Niemeyer, Michael P. Vogel Jan 1994

G94-1213 Child Care Environment Safety Checklist, Shirley Niemeyer, Michael P. Vogel

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide reviews statistics about child care services and offers suggestions on maintaining a safe environment for children in your care.

Being a child care provider means more than loving children. It means providing a safe environment for and protecting the children in your care so they can explore their world and develop trust.


G93-1150 Rinsing Pesticide Containers, Larry D. Schulze, Clyde Ogg Jan 1993

G93-1150 Rinsing Pesticide Containers, Larry D. Schulze, Clyde Ogg

Historical Materials from University of Nebraska-Lincoln Extension

It is estimated that every year one million plastic agricultural pesticide containers are used in Nebraska. Effective rinsing of these containers saves money, protects the environment and meets federal and state regulations on pesticide use.

Proper rinsing of pesticide containers is easy to do, saves money and helps protect people and the environment. It also helps prevent potential problems with unrinsed containers and storage of the rinse solution (rinsate). Even during a busy season, the few extra minutes it takes to properly rinse empty pesticide containers is time well spent.


G93-1191 Glossary Of Water-Related Terms, William L. Kranz, Delynn Hay, James W. Goeke, David Gosselin Jan 1993

G93-1191 Glossary Of Water-Related Terms, William L. Kranz, Delynn Hay, James W. Goeke, David Gosselin

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide is a glossary of water quantity, quality and human health related terms involving water. Terms are defined in contexts that could affect Nebraskans. We depend upon water for our very existence. The impact of water quality and quantity issues has never been greater. Yet the terminology used to describe the water we drink, the water we provide to plants and animals, the water stored underground, in lakes, rivers, and oceans, is not well understood by many Nebraskans. This listing of water-related terms is intended to reduce the potential for misunderstanding presentations made by elected officials, environmental agencies and ...


G91-1022 Guide To Growing Houseplants, Don Steinegger, Frederick P. Baxendale, John E. Watkins Jan 1991

G91-1022 Guide To Growing Houseplants, Don Steinegger, Frederick P. Baxendale, John E. Watkins

Historical Materials from University of Nebraska-Lincoln Extension

Proper care can extend houseplants' lives. This NebGuide offers hints on conditioning, light, fertilizing and more.

Many people enjoy houseplants; in fact, raising them is one of the fastest growing indoor hobbies. Caring for houseplants offers opportunities for people who like to work with living things and watch them develop. Today, houseplants are an integral part of indoor decor -- especially in winter.

An artificial indoor environment often hinders plant development. High temperatures, low humidity, lack of sunlight, poor soil conditions, and improper watering contribute to most houseplant problems. In addition, insects or plant diseases occasionally damage houseplants.

While plants last ...


Ec90-2502 Perspectives On Nitrates, Gary W. Hergert, Richard A. Wiese, Delynn Hay, William A. Lee, Ann Ziebarth, Richard B. Davis, Constance Kies, Carolyn Bednar, Norman Schneider, Alex Hogg, Robert A. Britton, J. David Aiken Jan 1990

Ec90-2502 Perspectives On Nitrates, Gary W. Hergert, Richard A. Wiese, Delynn Hay, William A. Lee, Ann Ziebarth, Richard B. Davis, Constance Kies, Carolyn Bednar, Norman Schneider, Alex Hogg, Robert A. Britton, J. David Aiken

Historical Materials from University of Nebraska-Lincoln Extension

The potential adverse consequences of nitrate on both human and animal health has long been recognized. This extension circular is comprised of six papers that include:

• Nitrogen in our Environment
• Alternatives When Excessive Nitrate is Present in Drinking Water
• Nitrates, Nutrites and Methemoglobinemia
• Nitrates, Nutrities, N-Nitroso Compounds and Nutrition
• Excessive Nitrate/Nitrite Exposure: Nitrate Poisoning and Related Animal Health Effects
• Nitrates and Ground Water Quality Protection Policies


G90-1001 Spray Drift Of Pesticides, Larry D. Schulze, Robert Grisso, Robert Stougaard Jan 1990

G90-1001 Spray Drift Of Pesticides, Larry D. Schulze, Robert Grisso, Robert Stougaard

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide discusses conditions that cause particle drift, and methods private and commercial applicators may employ to reduce drift potential from pesticide spray applications.

Spray drift of pesticides away from the target is an important and costly problem facing both commercial and private applicators. Drift causes many problems including:

1. damage to susceptible off target sites,

2. a lower rate than intended which can reduce the effectiveness of the pesticide, wasting pesticide and money, and

3. environmental contamination, such as water pollution and illegal pesticide residues.

Drift occurs by two methods; vapor drift and particle drift. This NebGuide focuses mainly ...


G90-1007 Pesticide Management And Safety On Home Grounds, John C. Fech, Larry D. Schulze Jan 1990

G90-1007 Pesticide Management And Safety On Home Grounds, John C. Fech, Larry D. Schulze

Historical Materials from University of Nebraska-Lincoln Extension

Pesticides can be valuable tools in controlling lawn and garden pests. They must be used according to the label, with regard for the safety of people and animals.

Pest infestations often develop in lawns or gardens, damage lawns and ornamentals, and reduce the attractiveness of the home setting. When an infestation occurs, gardeners can reach a decision in pest management by answering the following questions: What is the pest? Is the pest causing unacceptable damage? Are controls needed? What pest control method(s) should be used?

There are several methods of pest control. The main methods of pest control and ...


G89-915 Testing Livestock Feeds For Beef Cattle, Dairy Cattle, Sheep And Horses, Rick Grant, Bruce Anderson, Richard J. Rasby, Terry L. Mader Jan 1989

G89-915 Testing Livestock Feeds For Beef Cattle, Dairy Cattle, Sheep And Horses, Rick Grant, Bruce Anderson, Richard J. Rasby, Terry L. Mader

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide provides tips on how to determine feeds you should analyze and nutrients to measure. It tells how to interpret the results of feed analysis.

Why Test Feeds?

Nutrient concentration can vary considerably in feeds, especially forages. Protein in alfalfa hay can range from 10 to 25 percent or more of the dry matter; grass hay will contain between four and 18 percent protein.

Use feed tests to target specific feeds to different livestock. Feed high quality forage to the most productive livestock or when nutrient needs are highest. Feed lower quality forage to animals with lower nutrient needs ...


G89-915 Testing Livestock Feeds For Beef Cattle, Dairy Cattle, Sheep And Horses (Revised April 1997), Rick Grant, Bruce Anderson, Richard J. Rasby, Terry L. Mader Jan 1989

G89-915 Testing Livestock Feeds For Beef Cattle, Dairy Cattle, Sheep And Horses (Revised April 1997), Rick Grant, Bruce Anderson, Richard J. Rasby, Terry L. Mader

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide provides tips on how to determine feeds you should analyze and nutrients to measure. It tells how to interpret the results of feed analysis.

Why Test Feeds?

Nutrient concentration can vary considerably in feeds, especially forages. Protein in alfalfa hay can range from 10 to 25 percent or more of the dry matter; grass hay will contain between four and 18 percent protein.

Use feed tests to target specific feeds to different livestock. Feed high quality forage to the most productive livestock or when nutrient needs are highest. Feed lower quality forage to animals with lower nutrient needs.


G89-915 Testing Livestock Feeds For Beef Cattle, Dairy Cattle, Sheep And Horses, Rick Grant, Bruce Anderson, Richard J. Rasby, Terry L. Mader Jan 1989

G89-915 Testing Livestock Feeds For Beef Cattle, Dairy Cattle, Sheep And Horses, Rick Grant, Bruce Anderson, Richard J. Rasby, Terry L. Mader

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide provides tips on how to determine feeds you should analyze and nutrients to measure. It tells how to interpret the results of feed analysis.

Why Test Feeds?

Nutrient concentration can vary considerably in feeds, especially forages. Protein in alfalfa hay can range from 10 to 25 percent or more of the dry matter; grass hay will contain between four and 18 percent protein.

Use feed tests to target specific feeds to different livestock. Feed high quality forage to the most productive livestock or when nutrient needs are highest. Feed lower quality forage to animals with lower nutrient needs ...


Rb25-207 The Spindle-Tuber Disease: One Cause Of "Run-Out" Seed Potatoes, H.O. Werner Jan 1925

Rb25-207 The Spindle-Tuber Disease: One Cause Of "Run-Out" Seed Potatoes, H.O. Werner

Historical Materials from University of Nebraska-Lincoln Extension

The spindle-tuber disease is one of the most prevalent potato diseases occurring in all parts of Nebraska. It has been found in all varieties tested. It does much damage to the potato crop, in that it reduces the yield and injures the market quality of the potatoes.

This 1925 publication discusses the spindler-tuber disease also known as "running-out" or degeneracy of seed potatoes; the distribution of the disease; effect upon yield and quality; symptoms of the different potato varieties; transmission of the disease and experiments; rate of increase of the disease; dry land versus irrigation in western Nebraska; straw mulching ...