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Articles 211 - 240 of 403
Full-Text Articles in Agriculture
An Analysis Of Kentucky Equestrian Trail Riders: Determining Rider Behaviors And Valuing Site Amenities That Contribute To Repeat Visits, Katharine Auchter
An Analysis Of Kentucky Equestrian Trail Riders: Determining Rider Behaviors And Valuing Site Amenities That Contribute To Repeat Visits, Katharine Auchter
University of Kentucky Master's Theses
The purpose of this travel cost study is to determine how rider behaviors and site characteristics influence repeat visits for equestrian trail riding in Kentucky. Primary data was collected via a survey developed and administered to trail riders in person and online. The average surveyed trail rider tends to be female, about 46 years old, with some higher education, and an annual household income of $65,000. She makes 11 trips to a specified site per year, 8 of which are daytrips, usually in the fall, and traveling 132 miles round trip. From other information gathered, an index of trail characteristics …
Packing Factors Of Feed Products In Storage Structures, Samuel G. Mcneill, Michael D. Montross, Sidney A. Thompson, I. Joseph Ross, Thomas C. Bridges
Packing Factors Of Feed Products In Storage Structures, Samuel G. Mcneill, Michael D. Montross, Sidney A. Thompson, I. Joseph Ross, Thomas C. Bridges
Biosystems and Agricultural Engineering Faculty Publications
Experiments were conducted to measure the changes in bulk density of cracked corn, corn meal, soybean meal, cotton seed meal, and distillers dried grain (without solubles) when subjected to simulated overburden pressures. All materials were tested at two moisture content levels (approximately 8% and 12% w.b.) and seven pressures between 0 and 69 kPa (0 and 10 psi). A mathematical model was fitted to the data to predict the bulk density of each feed ingredient as a function of pressure and moisture content. These relationships were inserted into a previously developed computer model to predict ingredient packing within conventional storage …
Airflow Resistance Of Wheat Bedding As Influenced By The Filling Method, J. Łukaszuk, M. Molenda, J. Horabik, B. Szot, Michael D. Montross
Airflow Resistance Of Wheat Bedding As Influenced By The Filling Method, J. Łukaszuk, M. Molenda, J. Horabik, B. Szot, Michael D. Montross
Biosystems and Agricultural Engineering Faculty Publications
A study was conducted to estimate the degree of variability of the airflow resistance in wheat caused by the filling method, compaction of the sample, and airflow direction. Two types of grain chambers were used: a cylindrical column 0.95 m high and 0.196 m in diameter, and a cubical box of 0.35 m side. All factors examined were found to influence considerably the airflow resistance. Gravitational axial filling of the grain column from three heights (0.0, 0.95 and 1.8 m) resulted in the pressure drops of 1.0, 1.3, and 1.5 kPa at the airflow velocity of 0.3 m/s. Consolidation of …
Third Thursday 1-2008, Institute Of Agriculture
Considerations For Starting A Winery, Justin R. Morris
Considerations For Starting A Winery, Justin R. Morris
Research Reports and Research Bulletins
This publication is for anyone who has ever considered entering the wine industry. The goal of this publication is to provide information about requirements and procedures for starting a winery. It is not a “how-to” manual but rather is designed to serve as a starting point to investigate the many aspects of owning and operating a winery. Although the manuscript frequently refers to procedures for starting a winery in Arkansas, the concepts presented are applicable throughout the U.S. Detailed economic information on starting a winery is covered in a companion publication. Both publications are part of a project supported by …
The Kentucky Agricultural Economic Outlook For 2008, Laura A. Powers
The Kentucky Agricultural Economic Outlook For 2008, Laura A. Powers
Kentucky Agricultural Economic Outlook
No abstract provided.
2008 International Pinot Noir Celebration Program, International Pinot Noir Celebration
2008 International Pinot Noir Celebration Program, International Pinot Noir Celebration
Willamette Valley Archival Documents - IPNC
This document is the 2008 program for the International Pinot Noir Celebration (IPNC), held annually on the campus of Linfield College in McMinnville, Oregon. The program contains a detailed schedule of the celebration’s major events, presentations, and meals, as well as information regarding guest speakers, chefs, and artists visiting the campus. The program also includes a short description of all participating wineries for 2008, both foreign and domestic, along with a listing of the IPNC board of directors and all major supporters and contributors to the event.
2008 Tri-Cities Wine Festival Bronze Medal Certificate, Tri-Cities Wine Festival
2008 Tri-Cities Wine Festival Bronze Medal Certificate, Tri-Cities Wine Festival
Spofford Station Documents
This certificate awards the 2004 Estate Grown Merlot from JLC Winery, Spofford Station, with a Bronze Medal at the 30th Anniversary Tri-Cities Wine Festival. J.V. Ramsdell, Jr. served as the judging chair for the event.
Inorganic And Organic Phosphorus Interactions With Hydroxy-Interlayered Soil Minerals, Paul D. Shumaker Ii
Inorganic And Organic Phosphorus Interactions With Hydroxy-Interlayered Soil Minerals, Paul D. Shumaker Ii
University of Kentucky Master's Theses
Phosphorus (P), a necessary plant and animal nutrient, can also lead to eutrophication of fresh waters when in excess. Appropriate P management is necessary to prevent fresh water pollution. Mineralogy of soil clays has been shown to affect P adsorption, desorption, and movement through soils. Specifically, hydroxy-interlayered minerals have been shown to adsorb and retain inorganic P in soil systems. This study was designed to determine the sorption and desorption characteristics of inorganic, organic, and mixed forms of P interacting with soil hydroxy-interlayered vermiculites (HIV) and smectites (HIS), and compare the findings to sorption and desorption processes of natural aluminum …
Quantifying Cellulase In High-Solids Environments, Alicia Renée Abadie
Quantifying Cellulase In High-Solids Environments, Alicia Renée Abadie
University of Kentucky Master's Theses
In recent years, fungal and bacterial cellulases have gained popularity for the conversion of lignocellulosic material to biofuels and biochemicals. This study investigated properties of fungal (Trichoderma. reesei) and bacterial (Clostridium thermocellum) cellulases. Enzymatic hydrolysis was carried out with T. reesei using nine enzyme concentration and substrate combinations. Initial rates and extents of hydrolysis were determined from the progress curve of each combination. Inhibition occurred at the higher enzyme concentrations and higher solids concentrations. Mechanisms to explain the observed inhibition are discussed. Samples of C. thermocellum purified free cellulase after 98% hydrolysis were assayed to determine …
4th Lone Star Regional Native Plant Conference, David Creech, Greg Grant, James Kroll, Dawn Stover
4th Lone Star Regional Native Plant Conference, David Creech, Greg Grant, James Kroll, Dawn Stover
Lone Star Regional Native Plant Conference
No abstract provided.
Endeavors 2007-08
Endeavors: Highlights of University of Nebraska-Lincoln Agricultural Research Division Research
CONTENTS:
New approach delays soybean irrigation, maintains yields
New group focuses on bioenergy crops in the Midwest
Sandhills dunes more stable than once thought
Take ‘may contain food allergen’ labels seriously
Advanced infrared camera expands hydrology research
UNL-based Drought Mitigation Center has new leadership
Carbohydrates in milk can help block bacteria
Tending human tendons using ultrasound
Research studies effect of one-time tillage on no-till
IANR, cattle feeders partners in cattle research
Medical, animal researchers to collaborate
Rural Nebraskans not the retiring type, poll shows
IANR returns 15 to 1 benefit for each tax dollar
New components of plant immunity being …
Evaluation Of Dry Distillers Grains Plus Solubles Inclusion On Performance And Economics Of Finishing Beef Steers, C. D. Buckner, T. L. Mader, G. E. Erickson, S. L. Colgan, D. R. Mark, V. R. Bremer, K. K. Karges, M. L. Gibson
Evaluation Of Dry Distillers Grains Plus Solubles Inclusion On Performance And Economics Of Finishing Beef Steers, C. D. Buckner, T. L. Mader, G. E. Erickson, S. L. Colgan, D. R. Mark, V. R. Bremer, K. K. Karges, M. L. Gibson
Panhandle Research and Extension Center
A 167-d feedlot study was conducted to evaluate feeding increasing levels of dry distillers grains plus solubles (DDGS) to finishing cattle and the impact on performance and profitability. Crossbred steer calves (n = 240, BW = 306 ± 24.5 kg) were used in 30 pens with dietary treatments of 0, 10, 20, 30, and 40% DDGS dietary inclusion (DM basis). Quadratic relationships (P < 0.05) were observed for final BW and ADG as dietary DDGS increased, with the greatest ADG observed at 20% inclusion. The DMI was not affected (P > 0.15) by DDGS level, but G:F tended to be quadratic (P = 0.10) as 20% DM inclusion had the greatest value, although steers fed all levels of DDGS had numerically greater G:F compared with steers fed no …
What Limits Fire? An Examination Of Driver's Of Burnt Area In Southern Africa, Sally Archibald, David P. Roy, Brian W. Van Wilgen, Robert J. Scholes
What Limits Fire? An Examination Of Driver's Of Burnt Area In Southern Africa, Sally Archibald, David P. Roy, Brian W. Van Wilgen, Robert J. Scholes
GSCE Faculty Publications
The factors controlling the extent of fire in Africa south of the equator were investigated using moderate resolution (500 m) satellite-derived burned area maps and spatial data on the environmental factors thought to affect burnt area. A random forest regression tree procedure was used to determine the relative importance of each factor in explaining the burned area fraction and to address hypotheses concerned with human and climatic influences on the drivers of burnt area. The model explained 68% of the variance in burnt area. Tree cover, rainfall in the previous 2 years, and rainfall seasonality were the most important predictors. …
Impact Of An External Energy On Yersinia Enterocolitica [Atcc–23715] In Relation To Antibiotic Susceptibility And Biochemical Reactions: An Experimental Study, Mahendra Kumar Trivedi
Impact Of An External Energy On Yersinia Enterocolitica [Atcc–23715] In Relation To Antibiotic Susceptibility And Biochemical Reactions: An Experimental Study, Mahendra Kumar Trivedi
Mahendra Kumar Trivedi
Background: While spiritual and mental energies are known to man, their impact has never been scientifically measurable in the material world and they remain outside the domain of science. The present experiments on Yersinia enterocolitica [ATCC –23715], report the effects of such energy transmitted through a person, Mahendra Trivedi, which has produced an impact measurable in scientifically rigorous manner. Methods: Yersinia enterocolitica strains in revived and lyophilized state were subjected to spiritual energy transmitted through thought intervention and/or physical touch of Mahendra Trivedito the sealed tubes containing strain and were analyzed within 10 days after incubation. Results: The results indicated …
First Report Of Downy Mildew On Lepidium Sativum In India, Kunal Mandal
First Report Of Downy Mildew On Lepidium Sativum In India, Kunal Mandal
Kunal Mandal
Downy mildew caused by Hyaloperonospora parasitica on different members of Brassicaceae has been reported from different parts of the world. In India, the pathogen is recorded for the first time on Lepidium sativum. Proper management strategies need to be formulated against this disease as incidence is increasing.
Effect Of Different Levels Of N, P And K On Downy Mildew (Peronospora Plantaginis) And Seed Yield Of Isabgol (Plantago Ovata), Kunal Mandal, R. Saravanan, S. Maiti
Effect Of Different Levels Of N, P And K On Downy Mildew (Peronospora Plantaginis) And Seed Yield Of Isabgol (Plantago Ovata), Kunal Mandal, R. Saravanan, S. Maiti
Kunal Mandal
The study showed that application of different doses of inorganic nutrients had considerable influence on growth, yield and downy mildew interaction in isabgol (Plantago ovata). It included three levels of nitrogen (0, 30, 60 kg N ha–1), two levels of phosphorous (0, 30 kg P ha–1) and two levels of potash (0, 40 kg K ha–1) for 2 consecutive years. The highest N supply (60 kg ha–1) caused more than 65% increase in disease severity compared with the control. However, application of 40 kg K ha–1 reduced percent disease index (PDI) by more than 10% compared with 0 kg K …
Physical And Chemical Properties Of Corn Distillers Wet Grains, Kurt A. Rosentrater, R. Michael Lehman
Physical And Chemical Properties Of Corn Distillers Wet Grains, Kurt A. Rosentrater, R. Michael Lehman
Kurt A. Rosentrater
The production of corn-based ethanol in the United States is dramatically increasing, and consequently, so is the quantity of generated coproducts, all of which are currently fed to livestock. Distillers Wet Grain (DWG) is one of these coproduct feeds. Many studies have investigated the nutritional properties of DWG and the response of livestock (primarily beef and dairy) to inclusion of these ingredients in their diets. To date, physical properties have been largely ignored, but they are needed for the design of storage facilities and equipment. The objective of this research was to quantify physical and chemical property values for typical …
Concentration Of Key Elements In North American Meat & Bone Meal, Rafael A. Garcia, Kurt A. Rosentrater
Concentration Of Key Elements In North American Meat & Bone Meal, Rafael A. Garcia, Kurt A. Rosentrater
Kurt A. Rosentrater
Meat & bone meal (MBM) and related rendered protein commodities have potential for use in applications other than animal feed, including use as a fuel or a phosphorus fertilizer. In order to develop these applications, data on the elemental composition are required; the currently available elemental composition data have important limitations. To generate more appropriate and reliable data, MBM samples were collected from 17 North American rendering plants, carefully prepared and analyzed for 20 elements. Preliminary studies showed that the sample preparation process artificially increased levels of sulfur and nickel in a manner that was correctable. Concentrations of many elements …
Determining Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater, Andrew W. Otieno, Pratyusha Melampati
Determining Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater, Andrew W. Otieno, Pratyusha Melampati
Kurt A. Rosentrater
In a collaborative project between the USDA and Northern Illinois University, the use of corn ethanol processing byproducts (i.e., DDGS) as bio-filler materials in the compression molding of phenolic plastics has been studied. This paper reports on the results of a machinability study in the milling of various grades of this material. Three types of samples were studied: 100% (0% DDGS), 75% (25% DDGS), and 50% (50% DDGS) phenolic samples. The milling operation was carried out with a fixed depth of cut of 2.0 mm using a 12.5 mm diameter two-fluted end-mill. The cutting speed was varied between 120 and …
No Differences In Decomposition Rates Observed Between Bacillus Thuringiensis And Non-Bacillus Thuringiensis Corn Residue Incubated In The Field, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
No Differences In Decomposition Rates Observed Between Bacillus Thuringiensis And Non-Bacillus Thuringiensis Corn Residue Incubated In The Field, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
Kurt A. Rosentrater
Recent speculation of slower residue decomposition for Bacillus thuringiensis (Bt) corn (Zea mays L.) hybrids compared with non-Bt corn hybrids has prompted investigative study. We evaluated the residue decomposition rates of Bt and non-Bt corn hybrids over a period of 22 mo under field conditions using the litter bag technique. The four corn hybrids used were (i) DKC60–16 (Bt+, Cry1Ab protein active against the leptidopteran European corn borer, event MON810), (ii) DKC60–12 (Bt+, Cry3Bb1 protein active against the coleopteran corn rootworm, event MON863), (iii) DKC60–14 (stacked Bt++, Cry1Ab and Cry3Bb1 proteins) and, (iv) DKC60–15 (Bt−, base genetics). The biochemical and …
Antidumping Duties In The Agriculture Sector: Trade Restricting Or Trade Deflecting?, Nisha Malhotra, Horatiu Rus, Shinan Kassam
Antidumping Duties In The Agriculture Sector: Trade Restricting Or Trade Deflecting?, Nisha Malhotra, Horatiu Rus, Shinan Kassam
Nisha Malhotra
In this paper we analyze whether U.S. Anti-Dumping (AD) duties in the agricultural sector are effective in restricting trade. More specifically, does imposition of an antidumping duty restrict imports of the named commodity or is there a diversion in the supply of imports from countries named in the petition to countries not named in the antidumping petition? We find that AD duties have had a significant impact on the imports of agricultural commodities from the countries named in the petition. However, our results also indicate that, unlike the manufacturing sector in the US, there was little trade diversion towards countries …
Properties Of Distillers Grains Composites: A Preliminary Investigation, Vanessa Cheesbrough, Kurt A. Rosentrater, Jerry Visser
Properties Of Distillers Grains Composites: A Preliminary Investigation, Vanessa Cheesbrough, Kurt A. Rosentrater, Jerry Visser
Kurt A. Rosentrater
Interest in renewable biofuel sources has intensified in recent years, leading to greatly increased production of ethanol and its primary coproduct, Distillers Dried Grain with Solubles (DDGS). Consequently, the development of new outlets for DDGS has become crucial to maintaining the economic viability of the industry. In light of these developments, this preliminary study aimed to determine the suitability of DDGS for use as a biofiller in low-cost composites that could be produced by rapid prototyping applications. The effects of DDGS content, particle size, curing temperature, and compression on resulting properties, such as flexural strength, modulus of elasticity, water activity, …
Potential Bleaching Techniques For Corn Distillers Grains, Jessica A. Saunders, Kurt A. Rosentrater, P. G. Krishnan
Potential Bleaching Techniques For Corn Distillers Grains, Jessica A. Saunders, Kurt A. Rosentrater, P. G. Krishnan
Kurt A. Rosentrater
The ethanol industry is booming and extensive research is now being pursued to develop alternative uses for Distillers Dried Grains (DDG) and Distillers Dried Grains with Solubles (DDGS), coproducts of the ethanol production process. Currently, DDG and DDGS are used exclusively as livestock feed. The low starch, high protein and high fiber coproducts appear to be ideally suited for diets treating medical conditions such as diabetes and Celiac’s disease by virtue of their chemical composition. Processing methods need to be investigated to create flours that can be used effectively. Modifying aspects such as color, odor and baking functionality may eventually …
Effect Of Flow Agent Addition On The Physical Properties Of Ddgs With Varying Moisture Content And Soluble Levels, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Vykundeshwari Ganesan
Effect Of Flow Agent Addition On The Physical Properties Of Ddgs With Varying Moisture Content And Soluble Levels, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Vykundeshwari Ganesan
Kurt A. Rosentrater
Distillers Dried Grains with Solubles (DDGS) is widely recognized as a highly nutritious animal feed ingredient. With the exponential growth of the fuel ethanol industry in the past several years, significant quantities of distillers grains are now being produced. To effectively utilize these feeds in the domestic market, these coproduct streams have to be transported greater distances, and must be stored in various structures until final use. Unfortunately, DDGS flow is often problematic, as it frequently becomes restricted by caking and bridging during storage and transport. This issue may arise from a number of factors, including storage moisture, temperature, relative …
Organic Amendment Based On Tobacco Waste Compost And Farmyard Manure: Influence On Soil Biological Properties And Butter-Head Lettuce Yield, Nur Okur, Hüseyi̇n Hüsnü Kayikçioğlu, Bülent Okur, Sezai̇ Deli̇bacak
Organic Amendment Based On Tobacco Waste Compost And Farmyard Manure: Influence On Soil Biological Properties And Butter-Head Lettuce Yield, Nur Okur, Hüseyi̇n Hüsnü Kayikçioğlu, Bülent Okur, Sezai̇ Deli̇bacak
Turkish Journal of Agriculture and Forestry
Agro-industrial waste presents an alternative to inorganic fertilizer. It is possible to use tobacco waste as a soil amendment due to its high organic matter and low toxic element content. Tobacco waste compost (TWC) and farmyard manure (FYM) were applied to Typic Xerofluvent soil at various ratios, and butter-head lettuce (Lactuca sativa L. var. Capitata L.) was grown. The effects on soil organic C and total N content, soil microbial biomass, soil respiration, activity of 4 enzymes (dehydrogenase, urease, alkaline phosphatase, and \beta-glucosidase), and lettuce yield were determined. Organic materials were applied at the rate of 50 t ha^{-1}. Significantly …
A Perspective On Balanced Fertilization In The Mediterranean Region, John Ryan
A Perspective On Balanced Fertilization In The Mediterranean Region, John Ryan
Turkish Journal of Agriculture and Forestry
The demands on agriculture to produce food and fibre are driven by the inexorable increases in the world's population. However, advances in agricultural science in the past century have helped food production to keep pace with population growth, thus keeping hunger and malnutrition at bay. The achievements in enhanced agricultural output, especially in the developed world, are attributed to 3 main factors: expansion of irrigation, development of improved higher-yielding, disease-resistant crop cultivars, and chemical fertilizers. Fertilizers are fundamental to producing more crop output from existing land in cultivation. Along with increased fertilizer use comes greater concern about the environment in …
Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman
Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman
Turkish Journal of Agriculture and Forestry
Alternate planting combinations of maize (Zea mays L.) with common bean (Phaseolus vulgaris L.) or cowpea (Vigna sinensis L.) were compared with the solitary planting of each crop during 2003 and 2004 under the East Mediterranean conditions in Turkey. The experiment comprised 15 treatments; sole planting of maize (71,500 plant ha^{-1}), sole planting of common bean (285,750 plant ha^{-1}) and cowpea (285,750 plant ha^{-1}), and 2 different planting patterns (1- and 2-row plantings) with 6 maize-legumes intercropping series, 50:50, 67:50, and 100:50, respectively, using randomized complete block design with 3 replications. Evaluation of the planting patterns was performed on basis …
Some Parameters Affecting Fire Behavior In Anatolian Black Pine Slash, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bülent Sağlam, Sağdan Başkaya, Bahar Di̇nç Durmaz
Some Parameters Affecting Fire Behavior In Anatolian Black Pine Slash, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bülent Sağlam, Sağdan Başkaya, Bahar Di̇nç Durmaz
Turkish Journal of Agriculture and Forestry
This study presents and discusses the results of a fire behavior study conducted in Anatolian black pine (Pinus nigra J.F. Arnold subsp. nigra var. caramanica (Loudon) Rehder) slash. A total of 30 experimental fires were conducted over 3 years under varying weather and fuel loading conditions in aging slash. Relationships between fire behavior and fuel properties and weather conditions were determined with correlation and regression analyses. Spread rate, fuel consumption, and fire intensity were all related to fuel properties and weather, and ranged from 0.2 to 3.1 m min^{-1}, from 0.71 to 6.65 kg m^{-2}, and from 14.05 to 3961.46 …
Sugar Industry In The South, John Alfred Heitmann
Sugar Industry In The South, John Alfred Heitmann
History Faculty Publications
Cane sugar is a key commodity in international trade and an important component of the modern diet. At one time or another, sugar cane was grown commercially in Alabama, Georgia, South Carolina, Texas, Louisiana, and Florida. During the 19th century, south Louisiana was the focal point of this dynamic industry; beginning in the mid-20th century, however, the center of innovative activities shifted to Florida.