Life Sciences Commons^™

G93-1133 Estimating Percent Residue Cover Using The Line-Transect Method, David P. Shelton, Roger Kanable, Paul J. Jasa

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes how to use the line-transect method to estimate the percentage of the soil surface covered with crop residue.

Crop residue left on the soil surface is one of the easiest and most cost-effective methods of reducing soil erosion. Research in Nebraska and other midwestern states has shown that leaving as little as 20 percent of the soil surface covered with crop residues can reduce soil erosion by one-half of what it would be from residue-free conditions. Greater amounts of residue cover will further reduce erosion.

The Effect Of Black Plastic Mulch Alone And In Combination With Various Types Of Plastic Row Covers On Production Of Sweet Corn, Morteza Jabalameli

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of black polyethylene (PE) mulch alone and in combination with plastic film tunnels (Agronet, Reemay, whiteperforated, clear, and clear-slitted) were studied on morphology and yield of sweet corn in North Logan, Utah. Yields of "Miracle" sweet corn (Zea mays L.) were increased significantly by using black PE mulch and with a combination of various types of plastic row covers, as compared to unmulched soil. Standard-growth analysis procedures were conducted to verify responses among treatments. Treatment effects were determined by measuring days to first flowering, ear weight, number of side tillers, cob length, cob circumference, cob fill length, number …

Visions For Agriculture, Department Of Agriculture, Western Australia

Agriculture reports

This workshop grew out of a conversation between Maurice Barnes, a Trayning farmer and member of the Research Advisory Committee of the Dryland Research Institute, and Steve Porritt, the officer in charge of the Dryland Research Institute at Merredin. Maurice was interested in the idea of posing the question 'What would agriculture be like if we had known as much about this landscape in 1829 as we know now?', to a group of farmers and others interested in the central wheatbelt and its future. Maurice saw this question as a first step toward achieving some shared vision for the future …

Interview With Tommy Paschall Regarding Dark Fire Tobacco Barns And Processing (Fa 476), Manuscripts & Folklife Archives

Folklife Archives Oral Histories

Transcription of an interview with Tommy Paschall conducted by John Morgan for an oral history project about dark fire tobacco barns. Paschall discusses tobacco cultivation and the building of dark fire tobacco barns in western Kentucky, specifically Calloway County, Kentucky.

Best Management Practices To Minimize Nitrate Leaching For Irrigated Potatoes, Robert W. Hill, Ahmad Y. Ranjha

All Archived Publications

Nitrate nitrogen (N03-N) leaching is becoming an alarming threat to ground water in many areas in the U.S. In one study in North Carolina, over 9000 domestic wells were sampled for nitrate. Over 3 percent (288 wells) contained N03-N at levels exceeding the Environmental Protection Agency (EPA) safe drinking water standard of 10 mgIL (Jennings, et aI., 1991). Ground water quality concerns in central Nebraska surfaced in the mid 1950s when scientists observed increasing N03-N concentrations in the ground water of some river valleys (Olson et aI., 1962). In Utah also, excessive N03-N contamination has been found in private wells. …

Can Extra Fat Make Healthier Hogs?, Anne Elise Clark

Mahurin Honors College Capstone Experience/Thesis Projects

Based on research by Fritsche (1991), Kelley (1988), and Caruso and Jeska (1990), it has been postulated that the addition of omega-3 fatty acids to the diet enhances the immune response of several species. This study was an attempt to ascertain the effects of addition of dietary omega-3 fatty acids in the form of ground flax contained in Omega Gold on the immune response of swine. The goal of this study was twofold: to determine the effects of ground flax on the humoral immunity of young pigs, and to differentiate between effects gained from enhancement of passive and active immunity. …

Cooperative Extension Program Tennessee State University Newsletter N.1 V.1 Jan. Mar.1992, Tennessee State University

Agriculture Newsletters

No abstract provided.

Cooperative Extension Program Tennessee State University Newsletter N. 2 V. 1 April-June 1992, Tennessee State University

Agriculture Newsletters

No abstract provided.

Mp92-64 The Stable Fly: A Pest Of Humans And Domestic Animals, Gustave D. Thomas, Steven R. Skoda

University of Nebraska-Lincoln Extension: Historical Materials

Many species of flies are pests. Many people, if you were to ask them about flies, would be at least vaguely aware of the potential to flies to transmit disease organisms. But yet, for the most part, a fly is a fly is a fly. Sayings like "It must be about to rain, the house flies are biting" are still common and show a general need for more, readily accessible information, particularly about some of the pest flies.

Stable flies, obligate blood-feeders, are very important pests to the cattle industry and, at times, are pests to other groups (they're most …

G92-1094 Controlling External Swine Parasites, John B. Campbell, Barbara Straw

University of Nebraska-Lincoln Extension: Historical Materials

Mixing, safety, restrictions, and precautions for insecticides used to control external swine parasites.

Hog Lice and Mange Mites

External parasites of swine include the hog louse and two species of mange mites (the common itch mite and the less common hog follicle mite). Excessive scratching and rubbing by pigs nearly always indicate an infestation of hog lice or mange mites.

Hog lice and mange mites infest a high percentage of swine slaughtered at Midwest slaughter plants.

Ec92-1245 Buffalograss: A Warm-Season Native Grass For Turf, S.A. Deshazer, Terrance P. Riordan, Frederick P. Baxendale, Roch E. Gaussoin

University of Nebraska-Lincoln Extension: Historical Materials

Buffalograss is a native grass species which has prospered on the Great Plains for centuries. Both cyclic and prolonged droughts have challenged it to evolve water use efficiency and sod forming ability. People are considering this short, fine-leaved prairie grass for an ecologically sound and energy efficient turf.

G92-1121 Winter Deicing Agents For The Homeowner, Jay Fitzgerald, Donald E. Janssen

University of Nebraska-Lincoln Extension: Historical Materials

Information on deicers and how they affect plants is covered here.

Slick sidewalks and roads are hazardous. Removing compacted snow and ice with shovels or snow blowers is not always an easy task. Deicers can help by "undercutting," or loosening the snow or ice because they lower the freezing point of water.

Do not use deicers to completely melt snow or ice, but to make their removal easier. Deicers melt down through the ice or snow to the hard surface, then spread out underneath. This undercuts and loosens the snow so shoveling and plowing can be done.

G92-1112 Lice Control On Cattle, John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

Identifying and controlling lice on cattle both are covered here.

Cattle lice may be the most underestimated livestock insect in terms of economic losses. The USDA estimates that U.S. livestock producers lose $125 million a year to cattle lice.

Heavy louse populations cause lowered milk production, loss of flesh, stunted growth, general unthriftiness and anemia. "Chronic" or "carrier" cows may abort due to louse-induced anemia. During severe winters, louse-infested animals are more susceptible to respiratory diseases.

G92-1081 Factors That Affect Soil-Applied Herbicides, R. S. Moomaw, Robert N. Klein, Alex Martin, Fred Roeth, P.J. Shea, G.A. Wicks, R. G. Wilson

University of Nebraska-Lincoln Extension: Historical Materials

Characteristics of soil-applied herbicides are discussed, including site of uptake by weeds, solubility, adsorption, persistence, leaching potential, photodecomposition, and volatility. For best performance, preemergence and preplant herbicides must be placed in the top 0 to 3 inches of soil. Placement is important because the herbicide must enter the germinating weed seedling in order to kill it. Herbicides can be blended into the soil by mechanical incorporation, rainfall, or sprinkler irrigation, depending on the herbicide. Herbicide characteristics that determine their performance are site of uptake by weeds, solubility, adsorption, persistence, leaching potential, photodecomposition, and volatility. An understanding of these factors will …

G92-1100 Sugar Beet Nematode, Eric D. Kerr, F.A. Gray, G.D. Franc

University of Nebraska-Lincoln Extension: Historical Materials

Symptoms, life cycle and control of sugar beet nematodes are among the topics covered here.

The sugar beet nematode, schachtii, is a major parasite of sugar beets, causing serious stand and yield reductions. It was first identified in 1859 on sugar beets near Halle, Germany. It was first observed in the United States as early as 1895 and was reported in two fields near Gering, Nebraska in 1926.

G92-1103 White Mold Of Dry Beans, James R. Steadman, Howard F. Schwartz, Eric D. Kerr

University of Nebraska-Lincoln Extension: Historical Materials

White mold symptoms, infection and control are covered here.

One of the most important diseases affecting dry beans in western Nebraska and Colorado is white mold caused by the fungus Sclerotinia sclerotiorum. In a recent year, losses from this disease averaged as high as 20 percent, with a few individual field losses exceeding 65 percent.

G92-1119 Rust Diseases Of Turfgrass, John E. Watkins, Roch E. Gaussoin

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes the various rust diseases common to Nebraska and offers suggestions for maintaining a vigorous and disease-resistant lawn.

Rust diseases occur on all turfgrasses; however, most rust problems occur on Kentucky bluegrass, perennial ryegrass, tall fescue and zoysia. In the cool-temperate regions of North America, cool season turfgrasses may suffer severe injury late in summer by attack from one of the rust pathogens. In addition, rust-weakened plants are much more susceptible to injury from environmental stresses and to attack by other turfgrass pathogens.

G92-1096 Understand Your Soil Test: Ph-Excess Lime-Lime Needs, K.D. Frank, Delno Knudsen

University of Nebraska-Lincoln Extension: Historical Materials

The relationships among pH, soil type, and lime requirements are explained.

Accurate soil tests can be an excellent management tool. Misuse of soil tests leads to increased production costs, yield losses, or both. The elements required by plants for proper growth have been determined by experimentation. Experience has shown that soils across Nebraska differ greatly in their capacity to supply these elements. The amount of each element supplied by a soil depends on several factors. Two important ones are: (1) the type of material from which the soil was formed, and (2) the treatment the soil has received since being …

Ec92-125 On-Farm Trials For Farmers Using The Randomized Complete Block Design, Phil Rzewnicki

University of Nebraska-Lincoln Extension: Historical Materials

Farmers are interested in evaluating new agricultural practices on their own farms. To produce results credible to themselves, other farmers, and researchers, a systematic method of testing should be used. If a comparison of agricultural practices results in one practice yielding a few more bushels of crop than another, this does not necessarily mean it is a more valuable practice. The difference may simply be due to field variation or chance.

This circular discusses the on-farm trials and incorporation of the two basic requirements in designing experiments: randomization and replication.

Sprinkler Irrigation-Pesticide Best Management Systems, Richard C. Peralta, Howard Deer, Robert W. Hill, L. Neil Allen

All Archived Publications

Pesticides reduce crop losses due to insects, pathogens, weeds and other pests, but can contaminate ground water. Ground water refers to water in the saturated portion of the soil material. Water in an unsaturated region of the soil is termed soil moisture.

Pesticide Movement In Response To Furrow Irrigation And Pesticide Parameters, Richard C. Peralta, Robert W. Hill, Howard Deer

All Archived Publications

Production of adequate supplies of food and fiber currently requires that pesticides be used to limit crop losses from insects, pathogens, weeds and other pests. The term pesticide refers to a large number ofchemical compounds. Pesticides include acaricides, fungicides, herbicides, insecticides, nematicides, algicides, arboricides, zoocides, and many more.

Nf91-39 Precipitation And Sprinkler Irrigation Monitoring For Managing Irrigation Scheduling, Steve Meyer, Kenneth Hubbard

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses precipitation and sprinkler irrigation monitoring for managing irrigation scheduling.

G91-1025 Two Crops In One Year: Doublecropping, Russell Moomaw, Gary Lesoing, Charles A. Francis

University of Nebraska-Lincoln Extension: Historical Materials

Choice of crops, weed control, and other cultural practices for successful doublecropping are discussed here. Multiple cropping refers to growing two crops on the same field during the same year. One method of multiple cropping is doublecropping, which is when one crop is grown after the first crop is harvested. Prime USA regions for doublecropping are the eastern cornbelt, and southeastern and south central states where relatively long growing seasons and abundant rainfall occur. By contrast, shorter growing seasons and less frequent rainfall limit the potential for doublecropping in Nebraska. Irrigation is essential for successful doublecropping in Nebraska. Without irrigation, …

Agenda: Moving The West's Water To New Uses: Winners And Losers, University Of Colorado Boulder. Natural Resources Law Center

Moving the West's Water to New Uses: Winners and Losers (Summer Conference, June 6-8)

Conference organizers and/or faculty included University of Colorado Law School professors Lawrence J. MacDonnell and Mark Squillace.

Moving the West's Water to New Uses: Winners and Losers will be the theme for this year's water conference, June 6-8 at the Law School in Boulder. The conference will consider the changing demands for water in the West and the need to reallocate a portion of the existing uses of water to new uses.

The first day will provide the background by looking at the most likely sources of water to meet these demands, including agriculture, federal water projects, interstate transfers, and …

Application Of Fuzzy Set Technique To Agricultural Planning, S Kumar, Narasingh Misra, B C Ghosh

IIMB Management Review

In India, agriculture remains the dominant sector of economic activity with 74 percent work force depending on it. But the share of income from agriculture sector is less than the employment in it. Also the menace of unemployment and food requirement is increasing with growing population. Hence , there is a great need for increasing production and net profit levels on one hand and employment generation on the other. Irrigation planning plays an .mportant role in increasing agricultural production, net benefit, employment generation etc. as only 32 percent of the total cultivated area is irrigated in our country. Irrigation Planning …

Harvester Newsletter Vol.10 December 1990, Tennessee State University

Agriculture Newsletters

No abstract provided.

G90-983 Equipment Adjustments For Herbicide Incorporation, Robert Grisso, Elbert C. Dickey, Alex Martin

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses how to operate liquid herbicide application equipment on tillage implements.

Heightened concerns for energy and soil conservation have caused producers to reduce the number of secondary tillage operations while trying to maintain satisfactory incorporation of herbicides. Many herbicides are carried into the soil by rainfall or sprinkler irrigation and do not require mechanical incorporation. However, some soil-applied herbicides require mechanical incorporation to reduce volatility and photodecomposition losses. These are Eradicane, Sutan+ and Treflan.

Land Resources In The Northern Section Of The Peel-Harvey Catchment, Swan Coastal Plain, Western Australia Map, Dennis Van Gool

Land resources series

Land Resources Map and Land Capability table for the northern section of the Peel-Harvey catchment. Prepared to assist nutrient management and land use planning in the southern section of the Peel-Harvey catchment.

G90-993 Basic Cultural Practices For Commercial Production Of Green (Snap) Beans, Laurie Hodges

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses cultivar selection, production, pest management and packing of commercial green beans.

Cultivars

Selection of cultivars depends on intended use or market. "Processor" cultivars are low in fiber and are best for home garden and roadside markets as well as processing. These include the various Bush Blue Lake selections (BBL 47, BBL 92, BBL 274) and others such as Early Gallatin, Eagle, Slenderwhite, Labrador, Flo, and Peak. The "fresh market" or "shipping" beans have high fiber to maintain quality during long distance shipping. These include Strike, Podsquad, Blazer, Triumph, Atlantic, Gatorgreen, Greencrop, Sprite, and many others. Cultivars with …

G90-1005 Fruit Tree Cultivars For Nebraska (Revised September 1997), William A. Gustafson

University of Nebraska-Lincoln Extension: Historical Materials

Proper fruit cultivar (variety) selection is important for successful and satisfying results from the home gardener's efforts. Selection should be based on family preferences, available space and intended use of the fruits. Harvest can be spread over several weeks if cultivars with different periods of maturity are planted.

It is important that homeowners select the kinds of fruit plants or cultivars that are best adapted for cultivation in their area of the state. They must have adequate hardiness to survive the winter, heat and drought tolerance to thrive in the summer, and the ability to survive spring frosts.