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Ec89-130 A 1989 Guide For...Herbicide Use In Nebraska

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 89-130 is a 1989 guide for herbicide use in Nebraska.

Ec89-259 The Nebraska Poultry Report 1989

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 89-259 is about the Nebraska poultry report in 1989.

Ec89-1511 1989 Insect Management Guide : Alfalfa, Soybeans, Wheat, Range And Pasture, S. D. Danielson, F. P. Baxendale, R. J. Wright

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 88-1511 is about field crop insect management guide for Nebraska alfalfa, soybeans, wheat, range and pasture.

A Blocking Elisa For The Detection Of Specific Antibodies To Bovine Respiratory Syncytial Virus, Marvin B. Rhodes, Carol A. Klucas, Merwin L. Frey, Gary A. Anderson

Roman L. Hruska U.S. Meat Animal Research Center: Reports

A blocking enzyme-linked immunosorbent assay (ELISA) has been adapted to detect specific antibodies in bovine sera to respiratory syncytial virus using a horseradish peroxidase-labeled monclonal antibody to the fusion protein of the virus. This assay plus an indirect blocking ELISA and indirect ELISA were used to detect antibodies to the bovine respiratory syncytial virus (BRSV) in 159 field-origin bovine sera. Results of these assays were compared with serum antibody titers measured by the serum neutralization (SN) test. Over a 56-day period, the mean neutralization titers and the mean delta absorbance values for the blocking ELISA, on the same sera, showed …

Pig Vocalizations Under Selected Husbandry Practices, H. Xin, J. A. Deshazer, Daniel W. Leger

Department of Psychology: Faculty Publications

Acoustical characteristics of vocalizations of sows, piglets, and nursery pigs under selected husbandry practices were analyzed with a digital signal processing system. The duration (D) and major energy-resonance frequency (P) for each call were determined as follows: a) processing of piglets (D = 0.81 s and f* = 3 700 Hz); b) food anticipation of breeding-gestation sows (2.50 s and 3 000 Hz); c) isolation of piglet (0.34 s and 500, 3 500 Hz); d) startling of nursery pigs (0.29 s and 900 Hz); e) sows in heat (3.07 s and 1 375 Hz); f) farrowing (0.10 s and 3 …

Ec89-1537 1989 Insect Management Guide : Sugarbeets, Dry Beans, Sunflowers, Vetch, Potatoes, Onion, S. D. Danielson, F. P. Baxendale, R. J. Wright

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 88-1537 is about field crop insect management guide for – sugarbeets, dry beans, sunflowers, alfalfa seed, vetch, potatoes, and onions.

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

University of Nebraska-Lincoln Extension: Historical Materials

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

University of Nebraska-Lincoln Extension: Historical Materials

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.

Atrazine Hazards To Fish, Wildlife, And Invertebrates: A Synoptic Review, Ronald Eisler

United States Fish and Wildlife Service: Publications

The herbicide ·atrazine (2-chloro-4-ethylamino-6-isopropylamino-I,3,5- triazine) is the most heavily used agricultural pesticide in North America. In the United States alone, more than 50 million kg (110 million pounds) are applied annually to more than 25 million ha (62 million acres), primarily to control weeds in corn and sorghum. Residues have been detected at phytotoxic concentrations in groundwater, lakes, and streams as a result of runoff from treated fields. Atrazine degrades rapidly, usually by way of hydrolysis, nitrogen dealkylation, and splitting of the triazine ring to less toxic compounds not normally inhibitory to plants and animals. The half-time persistence of atrazine …

G89-923 Windbreak Maintenance And Renovation, Jon Wilson, Mike Kuhns

University of Nebraska-Lincoln Extension: Historical Materials

What are you doing to maintain your windbreak? Is renovation necessary? This NebGuide can help you decide.

Windbreaks are integral parts of many Nebraska farming and ranching operations. They protect man, animals, crops and buildings from cold winter winds, hot summer winds, and deep snows. Windbreaks prevent wind erosion and provide wildlife habitat.

All windbreaks, even well-designed ones, need regular maintenance. Some windbreaks, especially those that are older or neglected, may need more drastic treatment or renovation.

Accumulation Of Lead And Organochiorine Residues In Captive American Kestrels Fed Pine Voles From Apple Orchards, Rey C. Stendell, W. Nelson Beyer, Robert A. Stehn

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Pine voles (Microtus pinetorum) were collected from pesticide-treated orchards in New York (USA) and fed to three captive American kestrels (Falco sparverius) for 60 days to evaluate potential hazards from soil-borne persistent insecticides. Three control kestrels were fed uncontaminated laboratory mice (Mus musculus). The pine voles contained an average of 38 ppm lead, 48 ppm DDE and 1.2 ppm dieldrin (wet weight). The kestrels accumulated sublethal amounts of lead (1 ppm lead wet weight) in their livers. In contrast, DDE and dieldrin accumulated in the tissues and brains of kestrels to toxicologically significant concentrations. …

Desert Explorations - A Videodisc Exhibit Designed For Flexibility, Judy Diamond, Alan B. Bond, Atsusi Hirumi

Alan Bond Publications

Using an interactive exhibit does not provide the same experience for everyone. How visitors understand an exhibit, what associations it evokes, and even how it is physically utilized may differ widely. This article describes an exhibit that was designed to let visitors tailor their explorations to their own interests and motivation. The exhibit, called Desert Explorations, gives visitors choices of what to see and how to learn about what they see. This exhibit also is an example of a way of developing interactive videodisc exhibits that is relatively inexpensive yet may be tailored to a particular topic or hall. This …

Blowouts In The Nebraska Sandhills: The Habitat Of Penstemon Haydenii, James Stubbendieck, Theresa R. Flessner, Ronald Weedon

Proceedings of the North American Prairie Conferences

The Nebraska Sandhills is the largest area of sand dunes in the Western Hemisphere, occupying over 5 million ha in northcentral Nebraska. The rolling to steep dunes range in height from a few meters to over 60 m. Soils are poorly developed in wind deposited sand. The continental climate is characterized by 425 to 625 mm of annual precipitation, an average annual temperature of 10 C, and a frost-free period of 130-155 days. Upland vegetation is primarily tall grasses and midgrasses such as sand bluestem [Andropogon gerardii var. paucipilus (Nash) Fern.], prairie sandreed [CaLamovilfa Longifolia (Hook.) Scribn.], little bluestem …

Distribution Of Flodman's Thistle And Its Response To Different Disturbances, Charles E. Umbanhowar Jr.

Proceedings of the North American Prairie Conferences

The importance of disturbance in prairie has long been recognized. Increasingly interest and research have focused on the action and interaction of multiple disturbances. The distribution of Flodman's thistle [Cirsium flodmanii (Rydb.) Arthur] on ant mounds, badger mounds, buffalo wallows, and potholes and in a lightly and a moderately grazed pasture was compared at the Nature Conservancy's S. H. Ordway Jr. Memorial Prairie in northcentral South Dakota. In the lightly grazed pasture, Flodman's thistle occurred most frequently on hilltops and ridges, but in the moderately grazed pasture it occurred with equal frequency on hilltops and ridges, and low areas …

Determining Federally Listed Endangered And Threatened Species, Emphasizing Blowout Penstemon, Wallace G. Jobman

Proceedings of the North American Prairie Conferences

Blowout penstemon (Penstemon haydenii S. Wats.) was federally listed as an endangered species on 1 September 1987. This pap"!r describes the process by which species, emphasizing blowout penstemon, are listed. The five listing factors described in Section 4 of the Endangered Species Act, candidate species, and the listing process are discussed. The blowout penstemon listing process progressed as follows: 1) petition to list; 2) designation as Category 2 Candidate Species; 3) status survey; 4) designation as Category 1 Candidate Species; 5) proposed rule to list; and 6) the final listing rule. The primary reasons for listing were the stabilization …

Designing With Prairie: A Heideggerian Hermeneutical Analysis, Evelyn A. Howell, Dave Egan

Proceedings of the North American Prairie Conferences

Landscape architects have been advocating the use of native species in designs for over 100 years. This Heideggerian hermeneutical analysis of the work of authors from 1919 to 1929 yields several underlying themes regarding the use of native species: 1) biological conservation (preservation), 2) possession (control of human-ordered world), 3) promotion of national and regional identity, 4) spirituality, and 5) aesthetics. The prairie-inspired designs of Jens Jensen, Darrel Morrison, and John Diekelmann illustrate the ways in which the emphasis placed on these themes and different assumptions about "prairie" influence the resultant plantings. Jensen's works are meant to evoke the relationship …

Seasonal Activity Of Snakes On A Sand Prairie, Dwight R. Platt

Proceedings of the North American Prairie Conferences

Snakes were caught in drift fence traps throughout the season of activity on a 32 ha sand prairie in Harvey County, Kansas, from 1966 through 1974. In these nine seasons, 128,281 trap station days yielded 6,412 captures of the six most common species of snakes: Pituophis melanoleucus sayi, Coluber constrictor jlaviventris, Thamnophis sirtalis parietalis. Thamnophis radix haydeni, Heterodon nasicus, and Heterodon platirhinos. Seasonal activity patterns, although variable from year to year, had a bimodal pattern with a period of low activity in late July or late August. Increases in snake activity resulted from increases in population size due …

Rodents And Shrews In Un-Grazed Tallgrass Prairie Manipulated By Fire, Donald W. Kaufman, Glennis A. Kaufman, Elmer J. Finck

Proceedings of the North American Prairie Conferences

Natural prairie was a mosaic of patches of depths of plant litter due to topoedaphic conditions and to spatial-temporal variation in fire and grazing. Such variation in litter depth undoubtedly influenced the distribution and abundance of small mammals. To examine this issue, small mammals were censused and plant litter depth was measured during autumn from 1981 to 1984 on the Konza Prairie Research Natural Area near Manhattan, Kansas. Five to 11 sites subjected to fire at different times from 1967 to 1984 were sampled during each of the four years of the study. Relative densities of deer mice (Peromyscus …

Proceedings Of The Eleventh North American Prairie Conference: Cover

Proceedings of the North American Prairie Conferences

No abstract provided.

Nebraska Sand Hills: The Last Prairie, Robert F. Whitcomb

Proceedings of the North American Prairie Conferences

Although North American grasslands are diverse and biotically rich, their conservation has never received high priority. As a result, the prairie landscape has all but disappeared. However, one prairie region has retained its essential pre-Columbian features. This is the Nebraska Sand Hills Prairie, a 4.8 million ha stabilized dune region of Holocene origin. Because the Sand Hills lie at the heart of the North American grasslands, their biota is influenced by the adjacent short- and tallgrass prairies and by northern (cool-season) and southern (warm-season) grasslands. In addition, the Sand Hills have their own distinctive sand-dependent biota. Equally important, however, is …

The Future Of A Prolific Variant Of Eastern Gamagrass, Laura Jackson, Chet Dewald

Proceedings of the North American Prairie Conferences

Eastern gamagrass [Tripsacum dactyloides (L.) L.] is currently being selected for higher forage yield. A prolific variant which can produce up to 20 times the number and 3 times the weight of seeds of a normal plant was found in a wild population and is now instrumental in the breeding program. Could this prolific type spread in wild populations? Vegetative vigor of mature plants was assessed by clipping plants to a 7 cm height every two weeks throughout the growing season. The two types did not differ in dry weight of regrowth, suggesting that they tolerate defoliation equally. Seed …

Survey And Reconnaissance Of Sea Turtles In The Northern Gulf Of Mexico, Larry Ogren

United States Department of Commerce: Staff Publications

This is a report on the results of an aerial survey of nesting beaches conducted during the period from May 16, 1977 to August 11, 1977. The area covered included the barrier beaches and offshore islands from the Florida-Alabama state line to the Rio Grande, Texas. Additional historical information is provided in order to compare current nesting activity with previous years as well as anecdotal observations on the occurrence of sea turtles in this region.

The Plight Of The ‘Forgotten’ Whales, Robert L. Brownell Jr., Katherine Ralls, William F. Perrin

United States Department of Commerce: Staff Publications

The “Save the Whales” movement, the most successful wildlife crusade in history, has greatly influenced government policies in a number of countries, including the United States. Thanks in large part to the movement’s dedicated members, the fight to save the great whales has been largely won. Yet all but ignored in this victory has been the plight of smaller cetaceans, which continues to worsen.

From The Gulf To The Rio Grande: Human Adaptation In Central, South, And Lower Pecos Texas, Thomas Hester, Stephen L. Black, D. Gentry Steele, Ben W. Olive, Anne A. Fox, Karl Reinhard, Leland C. Bement

Karl Reinhard Publications

The South Texas area, Region 3 of the Southwestern Division, U.S. Army Corps of Engineers, is synthesized from archeological and bioarcheological perspectives. Three distinct geographic units within Region 3 are treated in detail: Central Texas Plateau Prairie, South Texas Plains, and Lower Pecos Canyonlands. More than 11,000 years of human adaptation are chronicled for this area, stretching from the Gulf of Mexico to the Rio Grande along the border with northeastern Mexico. Particular attention is devoted to a consideration of the region's prehistoric record; significant problems and data gaps are outlined. For the first time, a compilation has been done …

A User's Guide To The Jekyll Island Environment, Lion Gardiner

Professional and Organizational Development Network in Higher Education: Conference Materials

The Marsh

The Terrestrial Vegetation

Birds

Mammals

Beach Plants

Animals of the Beach and Ocean

Exploring Further

The Okefenokee Swamp

Safety for People and Environment

Sources of Additional Information

Equipment

Assessment Answer Key

Tide Table

Ec89-102 Nebraska Spring Small Grain Variety Tests 1989, Lenis Alton Nelson, David D. Baltensperger, Russell S. Moomaw

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 89-102 is about Nebraska spring small grain variety tests 1989.

Ec89-212 Swine Reproductive Management, Donald G. Levis, Dwane R. Zimmerman, Alex Hogg

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 89-212 is about swine reproductive management.

Ec89-1509 1989 Insect Management Guide : Corn And Sorghum, S. D. Danielson, F. P. Baxendale, R. J. Wright

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 89-1509 is about field crop insect management guide for Nebraska corn and sorghum.

G89-912 Alfalfa Crown And Root Rots And Stand Longevity, John E. Watkins, Fred A. Gray, Bruce Anderson

University of Nebraska-Lincoln Extension: Historical Materials

Causes of crown and upper root rot, symptoms and management are discussed here.

Alfalfa (Medicago sativa L.) is the most important forage crop species in North America. It is widely adapted, energy efficient, and produces the most protein yield per acre. Alfalfa is well-suited to both dryland and irrigationd soils of Nebraska.

Many factors contribute to the decline in productivity of an alfalfa stand. Under favorable growing conditions and proper management, alfalfa stands in Nebraska can last over 10 years.

G89-951 Mushrooms, Puffballs, Fairy Rings, And Slime Molds In Turfgrass, John E. Watkins

University of Nebraska-Lincoln Extension: Historical Materials

How do you identify -- and treat -- mushrooms, puffballs, fairy rings and slime molds? Read on.

Some mushrooms and most puffballs are edible; some are foul-smelling, many are considered unsightly, and a few are poisonous; but when they appear on a lawn, most are considered a nuisance.