Digital Commons Network^™

Communication Networks And The Adoption Of Three Farn Practices, P. W. Fry, F. K. Goss

All other publications

The report commences with a discussion of the diffusion and adoption model, and illustrates some of the research observations and practical outcomes that have emerged in recent years, An overview of social network research is presented as a means of understanding communication exchanges and providing data relevant to the diffusion debate. The communication and adoption studies are then reported in three separate sections in the order they were conducted. (A map of the location of the survey areas is shown in Figure I ) . The objectives, survey method, results and a summary are presented for each study.

A background …

Effects Of Bulk Starter Media And Proteolytic Lactic Streptococci On Protein Loss In Cheddar Curd Manufacture, Steven A. Winkel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of whey-based and milk-based starter media, and low concentrations (0.02% each) of citrate, phosphate and calcium upon various milk coagulation properties were measured. Samples inoculated with milk-based starter medium had shorter coagulation times, faster rate of curd formation, and greater final curd firmness than those inoculated with externally neutralized whey-based starter. Starter medium treatment was statistically interacted with calcium for coagulation time and rate of curd formation. Citrate addition caused longer coagulation times, slower rates of curd formation, and weaker final coagula. Citrate interacted with calcium and phosphate for several of the parameters measured. Addition of phosphate did …

Effect Of Overall Indispensible Amino Acid Levels On Performance Of Broiler Chicks, Jack D. Kelly

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An attempt was made to determine the effect of overall indispensible amino acids (IAAs) level on growth rate and efficiency of broiler chicks. There were two overall levels: the low (8.33% IAA, 17.6% CP containing all IAAs at the minimum requirement found in preliminary studies), and the high (10.77% IAA, 21.5% CP with IAAs increased by 28%). Both diets contained 13.7 Megajoules ME (3277 Kcal) per kilogram.

These two diets along with other variations of the two diets were fed to Hubbard chicks. Growth rate, with the low IAA diet was as good as with the high, but feed efficiency …

Dietary Sodium Bicarbonate And Magnesium Oxide For Early Postpartum Lactating Dairy Cows: Effects Upon Milk Coagulation Parameters, Shu-Chuan Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Forty-eight Holstein cows at Utah State Dairy Farm were blocked statistically according to date of calving, previous milk production, and numbers of lactation at parturition. The cattle were assigned randomly to one of four treatments within blocks. The four treatments included a base ration (control, treatment #1), base ration plus .8% of sodium bicarbonate (treatment #2), base ration plus .4% of magnesium oxide (treatment #3), and base ration plus both .8% of sodium bicarbonate and .4% of magnesium oxide (treatment #4). The research was conducted from February 1983 to November 1984. A formagraph was used to measure milk coagulation parameters …

The Annual Meeting Of The Iowa Academy Of Science April 26-27, 1985 [Program, 97th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Program Contents:

Program Summary --- 4
Symposia Programs --- 10
Video Film Festival --- 15
Poster Papers --- 16
Campus Map --- Centerfold
Section Programs --- 18
Agricultural Sciences --- 18
Anthropology --- 21
Biotechnology --- 22
Botany --- 23
Chemical Education --- 28
Chemistry Inorganic --- 29
Chemistry, Organic --- 30
Conservation --- 32
Engineering --- 33
Geology --- 37
Linguistics --- 37
Nursing --- 38
Physics --- 39
Physiology --- 40
Psychology --- 41
Science Teaching --- 43
Zoology --- 44

Program Abstracts, 97th Session, Iowa Academy Of Science, April 26-27, 1985, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Computerized Microtomography In Scanning Electron Microscopy, A. Yu. Sasov

Scanning Electron Microscopy

Non-destructive methods of inner object structure reconstruction in the scanning electron microscope (SEM) have been studied. For specimens with a size of about 1 mm a spatial resolution of 10 μm has been achieved. The reconstruction is made from a project ion in X-ray radiation. Algorithms of conventional computerized tomography are used. The application of 3-dimensional reconstruction to different types of microobjects has been shown. As an example, microtomography of organic objects (grass grain, beetle head) and inorganic objects (semiconductor diode) has been carried out.

The Gamut: A Journal Of Ideas And Information, No. 15, Spring/Summer 1985, Cleveland State University

The Gamut Archives

CONTENTS OF ISSUE NO. 15, SPRING/SUMMER, 1985

Robert Finn: Learning to Enjoy Today's Music, 2

Getting past Stravinsky and Mahler to the hard stuff

James C. Haden: Stoning Socrates, 12

A philosopher looks at I. F. Stone's revisionist view of Socrates

William F. Lyon: Fireflies llluminate Life Processes, 23

Perhaps you should have kept those lightning bugs you used to catch on hot summer nights

John F. Donoghue: Two Poems, 26

"Space-Time and Sinkers" and "Concerto"

Louis T. Milic: Giving Away $1,000,000 a Year, 28

Stewart R. Mott's individualized philanthropy

David Sheskin: Four Drawings, …

Integration Of X-Ray Microanalysis And Morphometry Of Biological Material, W. C. De Bruijn

Scanning Electron Microscopy

It was investigated how to extract both morphometrical and X-ray elemental information from scanning electron microscopical (SEM) or scanning transmission electron microscopical (STEM)-images and how to integrate these two information streams either on line or off-line after storage.

Cytochemical reaction products in cell organelles in ultrathin sections are the biological structures of interest. In such organelles four different situations can be met: morphologically the structures are homomorph or heteromorph; chemically the elements are distributed either homogeneously or heterogeneously. A new program has been proposed and described, which permits determination of both the area and the mean net-intensity value of chemical …

The Synthesis And Evaluation Of A New Analog Of Phencyclidine (Pcp), William H. Johnson Jr.

Chemistry & Biochemistry Theses & Dissertations

Based on an interpretation of the literature of phencyclidine (PCP) together with an examination of the relevant models or prototype structures, this research has attempted to design and synthesize a rigid analog of the phencyclidine structure. The parent ring systems suggested for this study were the 1-arnino and 2-arninornethyltetralins, 10 and, 12.

Several organic compounds, based on this design, have been prepared by classical examples of reductive alkylation reactions of the corresponding 2-hydroxyciethylene-1-tetralones, 11, and by the condensation and subsequent reductive alkylation of the 1-arninotetralin, 9. These arninomethyltetralones, 28, 29 and 30, together with an example of a substituted 1-arninotetralin, …

Near Edge Fine Structures On Electron Energy Loss Spectroscopy Core Loss Edges, C. Colliex, T. Manoubi, M. Gasgnier, L. M. Brown

Scanning Electron Microscopy

Core edges recorded in Electron Energy Loss Spectroscopy (EELS) display a large variety of profiles. We have investigated several specific aspects concerning Energy Loss Near Edge Structures (ELNES) and emphasize the interest in a careful edge shape analysis to obtain refined microanalytical information, such as local symmetry. After indicating the general impact of EELS fine structures as compared to EDX and Auger spectroscopies we discuss the instrumental conditions required for recording satisfactory spectra and consider the theoretical problems which are involved in data interpretation. The major portion of this paper presents results for selected K, L23, M45 and N45 core …

Classification, Paleoecology, And Biostratigraphy Of Crinoids From The Stull Shale (Late Pennsylvanian) Of Nebraska, Kansas, And Iowa, Roger K. Pabian, Harrell L. Strimple

Bulletin of the University of Nebraska State Museum (1924–2023)

Thirteen species of crinoids representing the families Diphuicrinidae, catacrinidae, Pirasocrinidae, Erisocrinidae, Cromyocrinidae, Cymbiocrinidae, Scytalocrinidae, and Ampelocrinidae have been collected from the Stull Shale Member of the Kanwaka Formation in the Shawnee Group of the Virgil Series (Upper Pennsylvanian) from near Weeping Water and Plattsmouth, Nebraska, and near Pacific Junction, Iowa. Exposures of the Stull Shale near Melvern, Kansas, have yielded 14 species of crinoids representing the families Diphuicrinidae, Catacrinidae, Pirasocrinidae, Lophocrinidae Allagecrinidae, Cymbiocrinidae, Erisocrinidae, Apographiocrinidae, and Stellarocrinidae. All but two of the species present in the Stull Shale have been previously reported from other stratigraphic horizons, including the Vinland Shale …

Documentation Of Whole-Farm Model For The Eastern Wheatbelt Of Western Australia, Ross S. Kingwell, David J. Pannell, David. A. Morrison

Grain and other field crops published reports

The Eastern Wheatbelt Model (EwM) is a hypothetical farm model, intended to be representative of farms in the eastern wheatbelt region. It is a model of an 'average' farm in an 'average' season. Nevertheless it is possible to substitute the resource mix of a 'real' farm for the •average' and to substitute various types of season for the 'average'.

Assumptions of 'average' farm resources and •average' season are based on opinions by WADA researchers and advisers. For the EWM, researchers and advisers at Merredin prescribed average resources for an eastern wheatbelt farm receiving a 300 mm average rainfall including 210 …

The Prairie Naturalist Volume 17, No. 1. March 1985

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

COMMUNITY ANALYSIS OF THE FOREST VEGETATION IN THE LOWER PLATTE RIVER VALLEY, EASTERN NEBRASKA ▪ S. J. Rothenberger

RECOLONIZATION OF A BURNED PRAIRIE BY MEADOW VOLES (Microtus pennsylvanicus) ▪ P. L. Vacanti and K. N. Geluso

AMERICAN COOT HABITAT IN NORTH DAKOTA ▪ H. A. Kantrud

OBSERVATIONS ON PRAIRIE DOG DISPERSAL IN MONTANA ▪ C. J. Knowles

WINTER FOOD HABITS OF THE SWIFT FOX ON THE CENTRAL HIGH PLAINS ▪ D. M. Zumbaugh and J. R. Choate

BOOK REVIEW

Ground …

Marketing Programs And Strategies, J. Kenneth Evans

Kentucky Alfalfa and Stored Forage Conference

Hay has never been widely perceived as a cash crop, therefore, it has historically accounted for a very small part of the total cash sales by farmers. It has been estimated that more than 90% of all hay baled in the state is retained on the producing farms. Most of that which is sold is transported very short distances and of course if one farmer in a community has a good hay year, all do. Organized marketing efforts have been minimal in both scope and successes. In 1978, efforts were initiated toward a more organized system of marketing Kentucky hay. …

The Economics Of Stand Life In The Production Of Alfalfa, W. Donald Shurley

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is a crop which once established, can provide production of hay for several years thereafter. The productive years of the established crop are often referred to as the stand life. The life of an alfalfa stand is variable depending on many factors including variety grown, soil, weather conditions during the production period, insect and weed pressures, and of course the management skills of the producer in timely harvesting and other production jobs.

Alfalfa In Livestock Feeding Programs, Gary T. Lane

Kentucky Alfalfa and Stored Forage Conference

A magazine article entitled "Bidders Paid More For Quality at Wisconsin Hay Auction" caught my attention. Did they really pay more money for higher quality. I could not help but think of some hay sales which I have witnessed. One dollar per bale, large bales, small round bales, sixty dollars per ton, and $275 per ton are all some quotes I have heard recently in connection with hay purchases. Not much is said about quality. We may hear relative terms such as good, not much grass, cut early, not rained on or others but not much about nutrient content or …

Grazing Alfalfa, Charles T. Dougherty

Kentucky Alfalfa and Stored Forage Conference

Alfalfa (Medicaao sativa) is a native of an area south of the Black and Caspian seas and it still grows wild in Iran and eastern Anatolia. Alfalfa was the chosen forage for the fighting horses of ancient armies as long ago as 1800 B.C. when the Kassites conquered Babylon. The spread of alfalfa followed the pathway of armies through the Mediterranean, Europe, and the New World. For ages before man used alfalfa to fuel his fighting animals natural selection processes worked on the evolution of alfalfa and its predecessors. A scenario which would account for the morphology and …

Chemical Preservation Of Alfalfa Hay, Dan O. Riddell

Kentucky Alfalfa and Stored Forage Conference

Kentucky farmers harvest about 3 million tons of hay annually. In order to minimize dry matter losses and quality deterioration, hay should be baled with about 20% moisture. Unfortunately, adequate time required to field-dry hay to 20% moisture is often not available due to weather conditions. This is especially true for the first cutting of alfalfa in the spring. Many farmers are forced to choose between letting cut hay get rained on or baling hay wetter than is recommended. Hay baled with more than 20-25% moisture generally becomes moldy and undergoes a heating process which makes part of the protein …

Biological Control Of Alfalfa Insect Pests, Chris M. Christensen

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is a succulent plant that obviously is good feed for large herbivores such as cattle and horses. Therefore, it should not be surprising that a large number of small herbivores such as insects also find this plant delicious. Fortunately, most of these insects are not major pests. However, we do have a couple pest insects that annually attack this valuable crop and often cause economic damage.

Controlling insect pests is expensive and time consuming. However, not controlling them can be disastrous to the profit margin of the alfalfa producer. Entomologists who work on the insect pests of alfalfa have …

Weed Control In Alfalfa — Present & Future, Charles H. Slack

Kentucky Alfalfa and Stored Forage Conference

To achieve maximum alfalfa production and maintain excellent stands and forage quality for a number of years, producers need to start including weed control in their management program. Unfortunately good stands are not being established because of early weed competition where herbicides are not used. Alfalfa stands tend to play out before achieving their maximum number of years of production unless maintenance herbicides are used. Fortunately there are now herbicides registered to meet most every phase of alfalfa production.

This paper will deal primarily with the herbicides that are currently labeled for use on alfalfa. Several herbicides that are not …

Fertilizing Alfalfa For Optimum Production, Lloyd W. Murdock

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is a high producing crop. Therefore, it only makes sense not to limit its production or longevity by establishing it on unsuitable soil and by the use of unsound fertility practices. It is the aim of this paper to propose practices which will not limit the production of alfalfa, but, also allow it to be done as efficiently as possible with only the necessary inputs.

No-Till Alfalfa — Research And Observations, Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

In previous addresses to this Conference, I have suggested four basic goals be included in your alfalfa program: 1) attention to details prior to and during establishment such that you establish a thick, weed-free stand; necessary management to; 2) keep the stand productive for five years; 3) produce five tons per acre per year, and; 4) market your harvest product either as a cash crop or through your livestock program for profit. In the presentations to follow today, information will be presented which, if adapted to your program, will permit you to reach and surpass the above goals.

The topic …

Kentucky's Soils Potential For Alfalfa Production, Kenneth L. Wells

Kentucky Alfalfa and Stored Forage Conference

A description of Kentucky's land base indicates that of nearly 15 million acres suitable for cropland usage, approximately three-fourths has an erosion hazard potential of some degree, relating largely to steepness of slope (1). For this reason, there is a large potential acreage of alfalfa and other perennial forage crops relating to their sod forming growth habit which provides them an inherent value in erosion control.

Foreword [1985], Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

This is the front matter of the proceedings.

Theoretical Considerations On Surface Extended X-Ray Absorption Fine Structure (Exafs), Claudine Noguera

Scanning Electron Microscopy

We have investigated the following theoretical points relevant to surface EXAFS: proportionality of the signal to the absorption cross section, analysis of the oscillations with the simple EXAFS formula, accuracy in the determination of distances and coordination numbers, transferability of phase shifts and amplitude factors. We describe some of the most used techniques to record the Surface Extended X-Ray Absorption Fine Structure (SEXAFS) oscillations, both the photon induced techniques and the electron induced ones, such as the Auger effect, the total or partial yield, the ion desorption technique, the appearance potential spectroscopy and surface reflection electron loss spectroscopy; and in …

Effect Of Pasture Spraying On Gall Development., V. Nieman

Experimental Summaries - Plant Research

Sprays with low rates of desiccant herbicide just after head emergence has been shown to control development of toxicity in the same year. The trial was conducted to compare the effect of herbicides with different modes of action on control of toxicity and seed set. 85KA65.

Capeweed, Radish, Wild Oats, Sarsaparilla, Four O'Clock, Saffron Thistle, Onion Weed, Carnation Weed, J. R. Peirce, B J. Raynor

Experimental Summaries - Plant Research

85WH59, Capeweed time of spraying. Demonstration, capeweed, oil additions. 85N080, radish, nozzle angles x volumes. 85N081, radish, nozzle angles x rates. 85N082, wild oats, nozzle angles x volumes. 85N083, wild oats, nozzle angles x Rates. 85ME1, sarsaparilla, chemicals. 85N075, sarsaparilla, chemicals. 85TS26, 85ME48, 85ME104, 85GE29, saffron thistle, control with ear spraying in pasture. 85TS41, 85GE29a, saffron thistle, chemical control of seed set, 85TS27, saffron thistle, grazing trial. 85GE36, onion weed, chemicals in pasture. 85GE35, carnation weed, chemicals in pasture.

Efficiency Of Cinch On Brome Grass Control., J. E. Holmes., R L. Thomas

Experimental Summaries - Plant Research

85GE34, 85A11, 85A12,

Serradella Trial Programme., L. Cransberg

Experimental Summaries - Plant Research

Serradella Line Evaluation - Stage 2 85A155, Serradella Line Evaluation - Stage 3 85A156, Serradella Establishment - Time of Seeding x Seeding Rate 85A157, Serradella Establishment - Pod Undersowing (Variety x Rate) 85A158, Serradella Establishment - Pod Undersowing (Inoculation) 85A159.