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Articles 2011 - 2040 of 2376

Full-Text Articles in Life Sciences

Ec98-761 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 10: Livestock Yards Management, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-761 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 10: Livestock Yards Management, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Why should I be concerned? Livestock yards, such as barnyards, holding areas and feedlots, are areas of concentrated livestock wastes and a potential source of nutrient, solids, and bacteria contamination of surface and groundwater. Yards that are abandoned permanently or are inactive temporarily also represent a potential risk.


Ec98-770 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 5: Fertilizer Storage And Handling, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-770 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 5: Fertilizer Storage And Handling, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Why should I be concerned? Fertilizers play a vital role in agriculture. Over the years, fertilizers have increased farm production dramatically. Commercial fertilizer is, however, a major source of nitrate. Your drinking water is least likely to be contaminated if you follow appropriate management procedures or dispose of wastes off the farm site. However, proper offsite disposal practices are essential to avoid risking contamination that could affect the water supplies and health of others.


Ec98-768 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 4: Pesticide Storage And Handling, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-768 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 4: Pesticide Storage And Handling, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Why should I be concerned? Pesticides are showing up where they’re not wanted — in our drinking water. If pesticides are not handled and stored correctly around the farm, they can seep through the ground after a leak or spill, or enter a well directly during mixing and loading. Pesticides play an important role in agriculture. They have increased farm production and enabled farmers to manage more acres with less labor.


Ec98-792 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 16: Improving Crop Pesticide Application Management, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-792 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 16: Improving Crop Pesticide Application Management, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Though pesticides are especially harmful to the target pest, they are also potentially harmful to most living and breathing creatures and non-target plant life. Proper handling and application management of pesticides are important to protect you and to protect surface and groundwater from contamination. Pesticides were first found in groundwater in the 1970s. Prior to that, the general belief was that pesticides did not leach into the groundwater with normal use.


Ec98-791 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 15: Irrigation Wellhead Protection, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-791 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 15: Irrigation Wellhead Protection, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Why should I be concerned? Nebraska’s 80,000+ irrigation wells can provide a direct conduit for contaminants to reach groundwater supplies unless properly located, constructed, and protected. Groundwater is the source of drinking water for essentially all of Nebraska’s rural residents and most residents of our towns and cities. It is critical that every effort be made to protect groundwater quality. Irrigation wells can be constructed and maintained to assure that groundwater quality is protected. Improperly constructed or maintained wells can allow bacteria, pesticides, fertilizers, oil products, or other pollutants to contaminate groundwater.


Ec98-789 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 14: Improving Crop Nutrient Application Management, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-789 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 14: Improving Crop Nutrient Application Management, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Economics, energy and the environment are three primary reasons to be concerned about nutrient management, especially nitrogen (N) management. Nitrogen ranks high on a list of sixteen nutrients needed for the health of most plants, but unfortunately it also ranks high as a contaminant of Nebraska’s surface and groundwater. Most other nutrients occur naturally in the soil. Besides nitrogen, phosphorus and potassium are the nutrients most often added to Nebraska soils.


Ec98-796 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 17: Stormwater Management At Residential Sites, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-796 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Worksheet 17: Stormwater Management At Residential Sites, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Stormwater is water from irrigation, rain or melting snow that does not soak into the ground. It flows from rooftops, over paved areas and bare soil, and across sloped lawns. As it flows, this runoff can collect and transport soil, pet waste, livestock manure, salt, pesticides, fertilizer, oil and grease, leaves, litter and other potential pollutants. A heavy rainstorm isn’t needed to send pollutants rushing toward streams, wetlands and lakes. A garden hose alone can supply enough water.


Ec98-795 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 17: Improving Stormwater Management At Residential Sites, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt Jan 1998

Ec98-795 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 17: Improving Stormwater Management At Residential Sites, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Stormwater is water from irrigation, rain or melting snow that does not soak into the ground. It flows from rooftops, over paved areas and bare soil, and across sloped lawns. As it flows, this runoff can collect and transport soil, pet waste, livestock manure, salt, pesticides, fertilizer, oil and grease, leaves, litter and other potential pollutants. A heavy rainstorm isn’t needed to send pollutants rushing toward streams, wetlands and lakes. A garden hose alone can supply enough water.


Nf98-375 What Is The "Cooperative Agreement" For Endangered Species Habitat Along The Central Platte River?, Gary R. Lingle, Thomas G. Franti Jan 1998

Nf98-375 What Is The "Cooperative Agreement" For Endangered Species Habitat Along The Central Platte River?, Gary R. Lingle, Thomas G. Franti

University of Nebraska-Lincoln Extension: Historical Materials

The governors of Nebraska, Colorado and Wyoming and the Secretary of the Interior signed a historic agreement on July 1, 1997. This agreement addresses endangered species issues affecting the Platte River Basin upstream of its confluence with the Loup River. The Cooperative Agreement for Platte River Research and Other Efforts Relating to Endangered Species Habitats Along the Central Platte River, Nebraska provides funding and an administrative structure to allow the states and the federal government to work together in enhancing water and land resources for endangered species. The agreement has two main objectives: 1. To develop and implement a "recovery …


G96-1362 Soil Temperatures And Spring Planting Dates, Steven J. Meyer, Allen L. Dutcher Jan 1998

G96-1362 Soil Temperatures And Spring Planting Dates, Steven J. Meyer, Allen L. Dutcher

University of Nebraska-Lincoln Extension: Historical Materials

Dates on which soil temperatures reach a threshold value are presented as a spring planting guide for agronomic and horticultural producers.

For a seed to germinate it must have good contact with the soil and be placed in a favorable soil environment. A good soil environment is one that has suitable soil temperature, adequate soil moisture, good aeration, and for certain seeds, light. Conditions necessary for germination depend on the species and variety of seed being planted. Alone, none of these factors guarantee germination; rather it is the interaction of these factors that affects seed germination.

In Nebraska, soil moisture …


G98-1358 Feeding To Maximize Protein And Fat, Rick J. Grant Jan 1998

G98-1358 Feeding To Maximize Protein And Fat, Rick J. Grant

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes feeding guidelines to increase milk fat and protein production.

Proper feeding management of dairy herds can both improve the economy of production and provide a healthier cow. To achieve these goals, producers must feed to increase production of milk with maximum levels of milk fat and protein.

Milk solids components include fat, protein, lactose and minerals. Normal values for milk fat range from 3.7 percent (Holstein) to 4.9 percent (Jersey); milk protein ranges from 3.1 percent (Holstein) to 3.8 percent (Jersey). Lactose is usually 4.6–4.8 percent for all breeds; minerals (ash) average .74 percent. Because current milk …


Western Australian Agriculture - Key Achievements 1997-1998, Department Of Primary Industry And Fisheries, Western Australia Jan 1998

Western Australian Agriculture - Key Achievements 1997-1998, Department Of Primary Industry And Fisheries, Western Australia

Farm Systems and Economics published reports

During the past year the agriculture sector continued to be one of the most innovative and significant contributors to the Western Australian economy. In 1996/97 the value of agricultural exports reached $4.6 billion, having doubled in five years.

Not only does agriculture contribute directly to the State's financial position but farm expenditure is estimated to have a three-fold multiplier effect, thereby having a wide impact on the social well-being of Western Australians.

Increasingly, international trade is being linked to environmental performance. Accordingly, the Government has cemented sustainable farming as a cornerstone of the industry's and Agriculture WA's activities, thereby ensuring …


Focus On The Future Agriculture Western Australia's Strategic Directions 1998 - 2008, Agriculture Western Australia Jan 1998

Focus On The Future Agriculture Western Australia's Strategic Directions 1998 - 2008, Agriculture Western Australia

Reports

Strong growth in global demand combined with productivity gains, product innovation and sustainability improvements throughout the 1990s enable Western Australia agriculture to look to the 21st century with confidence.

This optimistic outlook is largely the result of innovation across the agricultural industries based on research, development and extension - activities in which Agriculture Western Australia continues to be the State's leading provider.

Focus on the Future is ambitious, and sends a unequivocal message about our strategic directions and the rationale guiding the agency in allocating resources to those areas which offer the biggest benefits to the Western Australian agriculture, food …


Agriculture And The Western Australian Economy : Value Added Contribution Of Agricultural Commodities, Nazrul Islam Dec 1997

Agriculture And The Western Australian Economy : Value Added Contribution Of Agricultural Commodities, Nazrul Islam

All other publications

No abstract provided.


Drug Residues And Food Safety, Clell Bagley Jul 1997

Drug Residues And Food Safety, Clell Bagley

All Current Publications

Complaints and demands from consumers concerning a product usually occur after an incident involving injury, illness or death. However, this was not the case with the Alar scare with apples and it is not the case with the concern for drug residues in food animal products.


Preventing Calf Losses, Clell Bagley Jul 1997

Preventing Calf Losses, Clell Bagley

All Current Publications

Many beef producers and practicing veterinarians noted there were higher than normal calf death losses during the 1993 calving season. We were especially aware of the increased losses here in the western states, but there were also heavy losses in the midwest and east, so the problem was very widespread.


Butram, Almon V., 1910-1993 (Mss 109), Manuscripts & Folklife Archives Jan 1997

Butram, Almon V., 1910-1993 (Mss 109), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid only for Manuscripts Collection 109. Includes correspondence, legal and financial papers of Almon V. Butram, who operated a farm in northern Warren County, Kentucky.


G97-1323 Best Management Practices To Reduce Atrazine Runoff From Corn Fields In Nebraska, Thomas G. Franti, Fred W. Roeth, Gary L. Zoubek Jan 1997

G97-1323 Best Management Practices To Reduce Atrazine Runoff From Corn Fields In Nebraska, Thomas G. Franti, Fred W. Roeth, Gary L. Zoubek

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide presents best management practices (BMPs) which can be used to reduce atrazine runoff from dryland and irrigationd corn fields in Nebraska. Atrazine is one of the most widely used herbicides in Nebraska. It is used alone or combination with other herbicides for weed control in both dryland and irrigationd corn. Atrazine is popular because of its effectiveness and economy. However, environmental concerns are an increasingly important part of producer decisions regarding weed control, fertility and irrigation management practices. A public concern is reducing atrazine runoff to surface waters. Best management practices (BMPs) reduce the amount of atrazine at …


G97-1315 Composting Manure And Other Organic Residues, Bahman Eghball Jan 1997

G97-1315 Composting Manure And Other Organic Residues, Bahman Eghball

University of Nebraska-Lincoln Extension: Historical Materials

Composting is becoming more common in Nebraska because of the many advantages it offers. This NebGuide provides information on the composting process and its management and related issues.

The Composting Process

Composting is the aerobic decomposition of manure or other organic materials in the thermophilic temperature range (104-149°F). The composted material is odorless, fine-textured, and low-moisture and can be bagged and sold for use in gardens, or nurseries or used as fertilizer on cropland with little odor or fly breeding potential. Composting improves the handling characteristics of any organic residue by reducing its volume and weight. Composting can kill pathogens …


Ec97-2505 Signs And Symptoms Of Pesticide Poisoning, Larry D. Schulze, Clyde Ogg, Edward F. Vitzthum Jan 1997

Ec97-2505 Signs And Symptoms Of Pesticide Poisoning, Larry D. Schulze, Clyde Ogg, Edward F. Vitzthum

University of Nebraska-Lincoln Extension: Historical Materials

Accidental exposure or overexposure to pesticides can have serious implications. The potential for pesticide accidents is real. It has been estimated that more than 36 million pounds of pesticide active ingredients are used annually in Nebraska. While most of these pesticides can be used with relatively little risk (as long as label directions are followed), some are extremely toxic and require special precautions.

The Poison Center, at the Children's Hospital in Omaha, reports that agricultural pesticides are responsible for 4.6 percent of all accidental exposures reported. A recent study surveyed callers to The Poison Center who were exposed to agricultural …


G97-1320 Feeding To Maximize Milk Solids, Rick J. Grant Jan 1997

G97-1320 Feeding To Maximize Milk Solids, Rick J. Grant

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes feeding guidelines to increase production of solids-corrected milk.

Proper feeding management of the dairy herd can improve the economy of production and provide for a healthier cow. Feeding to increase production of milk with maximum levels of milk fat and protein is essential for achieving these benefits.

Milk solid components include fat, protein, lactose, and minerals. Normal values for milk fat range from 3.7 percent (Holstein) to 4.9 percent (Jersey); milk protein ranges from 3.1 percent (Holstein) to 3.8 percent (Jersey). Lactose is usually 4.6 to 4.8 percent for all breeds and minerals (ash) average .74 percent. …


Ec97-275 Effect Of Lactation Length On Sow Reproductive Performance, Donald G. Levis Jan 1997

Ec97-275 Effect Of Lactation Length On Sow Reproductive Performance, Donald G. Levis

University of Nebraska-Lincoln Extension: Historical Materials

As lactation length decreases there is an increase in the weaning-to-estrus interval, a decrease in farrowing rate, a decrease in subsequent litter size and an increase in pigs weaned per sow per year. Because of herd-to-herd differences in the influence of lactation length on reproductive performance, each farm should conduct a preliminary study to evaluate the effect of the lactation length being considered before implementing the “new” weaning age of piglets.


G97-1342 Feeding Value Of Alfalfa Hay And Alfalfa Silage, Terry L. Mader, Todd Milton, Ivan G. Rush, Bruce Anderson Jan 1997

G97-1342 Feeding Value Of Alfalfa Hay And Alfalfa Silage, Terry L. Mader, Todd Milton, Ivan G. Rush, Bruce Anderson

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the feeding value of alfalfa under different harvesting, storage and feeding methods, as compared to other protein sources.

In Nebraska, alfalfa is used primarily as a protein source. However, for cow-calf producers it can sometimes be an economical energy source, depending on the prevailing price of feed grains and other sources of energy.

Alfalfa is generally harvested as dry hay or as silage (65 percent moisture). Ensiling at 45 to 55 percent moisture is also common, particularly if the alfalfa is stored in an upright oxygen-limiting structure. Regardless of harvesting and storage methods, some dry matter and …


Ec97-276 Management Strategies For Pen-Mating Female Pigs, Donald G. Levis Jan 1997

Ec97-276 Management Strategies For Pen-Mating Female Pigs, Donald G. Levis

University of Nebraska-Lincoln Extension: Historical Materials

The master control switch of a pork production enterprise is weaning day. Pork production managers have little or no control concerning when a weaned female will cycle or how long she will be in estrus after weaning. When females are pen-mated, the producer needs to use management procedures to prevent an excessive number of estrous females from expressing the standing response at the same time, try to manage estrous females so that they are bred at the proper time, try to manage boars so they maintain an adequate level of fertility, evaluate boars for level of sexual behavior before and …


Ec97-274 Management Of Replacement Gilts For Efficient Reproduction, Donald G. Levis Jan 1997

Ec97-274 Management Of Replacement Gilts For Efficient Reproduction, Donald G. Levis

University of Nebraska-Lincoln Extension: Historical Materials

Successfully introducing replacement gilts into the breeding herd is an important aspect of breeding herd efficiency. To attain herd efficiency, females must ovulate adequate numbers of viable ova, express estrus, show willingness to mate and conceive in a regular manner. If these qualities are properly developed, pregnancy rate and litter size will be maximized. A gilt development and management program needs to be designed for gilts from birth to farrowing their first litter.


G97-1313 Designing Preventive Health Management Programs For Cattle Producers, Dicky D. Griffin, Louis Perino, Gary Rupp, Eddie Hamilton Jan 1997

G97-1313 Designing Preventive Health Management Programs For Cattle Producers, Dicky D. Griffin, Louis Perino, Gary Rupp, Eddie Hamilton

University of Nebraska-Lincoln Extension: Historical Materials

The NebGuide details recommendations for a beef cattle herd immunization program.

This NebGuide presents two flow sheets which detail the recommendations for a beef cattle herd immunization program: the Calf through Weaning Preventive Health Management Flow Sheet and the Heifers, Cows and Bulls Preventive Health Management Flow Sheet. While this NebGuide emphasizes the procedures conducted on cattle at each cattle handling opportunity, it is very important to note the role a high quality nutritional program plays in building a total herd health program. You are encouraged to work with a qualified beef cattle nutritionist and your veterinarian when developing your …


Resource Management Decision Support Tools - Brief Model Descriptions, Campbell White & Associates Pty Ltd Jan 1997

Resource Management Decision Support Tools - Brief Model Descriptions, Campbell White & Associates Pty Ltd

Farm Systems and Economics published reports

During the past 10 years, a number of financial models have been developed within Agriculture Western Australia to assist decision making in resource management. Various approaches have been taken including whole farm, development and partial budgets.

Natural resource managers within Agriculture Western Australia, have identified a need to preserve these decision support systems in a central library. The models should be readily accessible to new staff, and the library should provide an 'engine' through which the models can be promoted, and information relating their application distributed. Recent technology such as the development and mainstream adoption of the World Wide Web …


Western Australian Primary Industry And Fisheries Portfolios - Major Achievements 1993 - 1996, Department Of Primary Industry And Fisheries, Western Australia Nov 1996

Western Australian Primary Industry And Fisheries Portfolios - Major Achievements 1993 - 1996, Department Of Primary Industry And Fisheries, Western Australia

Farm Systems and Economics published reports

AGRICULTURE and fishing were WA's first industries. Farm production in particular, was the State's economic mainstay for many years. It re1mains crucial lo our prosperity, and its future holds enormous potential.

As well as employment and income, agriculture and fisheries provide important recreation and landscape opportunities for our highly urbanised population, rural communities and international visitors. Recreational fishing- which is extremely popular - and the emerging farm tourism industry arc direct beneficiaries of strategics developed for sustainable primary industries.


Imaging God: God's Earth, Human Worlds, And The Challenge Of Agriculture, Loren Wilkinson Sep 1996

Imaging God: God's Earth, Human Worlds, And The Challenge Of Agriculture, Loren Wilkinson

Pro Rege

This article is based on a paper read at the Dordt College Bioethics Conference held February 19-20, 1996.


Twig, Branch, And Stem Diseases Of Pine, John R. Hartman Jun 1996

Twig, Branch, And Stem Diseases Of Pine, John R. Hartman

Agriculture and Natural Resources Publications

Tip Blight

Tip blight, caused by the fungus Sphaeropsis sapinea (formerly Diplodia pinea), is a serious disease of mature Austrian, Scots (Scotch), and Mugo pines in Kentucky. In the landscape, tip blight is normally not observed until pines reach about 12 years old and begin to bear cones. Severe infections year after year can greatly weaken and eventually kill affected pines.