Earth Sciences Commons^™

Alfalfa Hay For Horses, Robert Coleman

Kentucky Alfalfa and Stored Forage Conference

When horse owners consider hay for their horses, a number of criteria are generally considered. Of major importance is the hay must be free of mold and dust. It needs to contain nutrients needed by the horse and it must be palatable. If these criteria are met, the type of hay should not matter. However, that is not the case with many horse owners. When discussing the selection of hay, many owners first consider the type of hay. Can it be alfalfa or should it be a grass or how about a mix of grass and a legume. If a …

National Alfalfa & Forage Alliance, Beth Nelson

Kentucky Alfalfa and Stored Forage Conference

The National Alfalfa & Forage Alliance (NAFA) was formed on April 6, 2006. Its membership consists of state/regional seed associations, state/regional hay associations, genetic suppliers, seed marketers, allied industry, and research/extension affiliates. Each of these industry segments has representation on the NAFA board of directors.

Status And New Developments In Seed Coatings, Bill Talley

Kentucky Alfalfa and Stored Forage Conference

The acceptance and use of coated alfalfa seed has become the standard of how alfalfa seed is being sold. Coated seed, refers to a buildup in coating material of 10-34%. Seventy percent of proprietary alfalfa seed is now buildup coated, and 80 % of that amount is a 34% coating. The remaining is a 10% buildup and is usually only used as a carrier for inoculation and fungicide. The higher buildup coatings are able to carry more active ingredients that also enhance the agronomic benefit to the young seedling. The benefits to the young seedling, from the components of the …

Kentucky Department Of Agriculture Hay Testing Program, Kim Field

Kentucky Alfalfa and Stored Forage Conference

The Kentucky Department of Agriculture offers a forage testing service which provides nutritional and energy value information. A Kentucky Department of Agriculture staff member will take sample(s) of hay and/or haylage at the farm and analyze them in the Kentucky Department of Agriculture Forage Laboratory located in Frankfort. Tested forages can mean higher profit, whether feeding cattle, horses, goats, sheep or other livestock. By knowing the nutritional and energy value, you can minimize your cost and maximize your production.

Marketing Quality Hay, Tom Keene

Kentucky Alfalfa and Stored Forage Conference

When marketing quality alfalfa hay, you basically have two markets that you are going to try to target. First, you are going to be in the cash hay market, that’s where you will sell alfalfa hay to several different entities…..locally, statewide, nationally, or potentially internationally. Secondly, and more commonly, you will be marketing your hay to your own livestock enterprise on your farm. Several times every month, I have people call me and ask me what their hay is worth. I tell them very honestly I have no idea what their hay is worth; only by keeping track of their …

How Are Roundup Ready Varieties Performing, S. Ray Smith

Kentucky Alfalfa and Stored Forage Conference

Roundup Ready® Alfalfa

The most significant new development in alfalfa varieties was the January 27, 2011 decision by USDA to deregulate Roundup Ready® Alfalfa (RRA) without conditions. This was the final step in an extensive environmental review process by the USDA that took place over a 4 year period of time. If you would like to know more about the safety of Roundup Ready® Alfalfa you can review the complete Environmental Impact Statement at: http://www.aphis.usda.gov/biotechnology/downloads/alfalfa/gt_alfalfa%20_feis.pdf.

Most importantly, seed dealers in Kentucky and surrounding states now have Roundup varieties available for sale.

Getting More From Your Alfalfa, Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

Today marks the 32nd consecutive year we have come together to discuss alfalfa and its role on your farm, in Kentucky, and our nation. Over these 32 years we have discussed many topics and seen many advances, unfortunately we aren’t making progress relative to acres, yield and quality that I would like to see. Maybe I am getting impatient as I am actually thinking about retirement. Now wait, you are one step ahead of me. I know you are thinking he has shown many graphs, tables and charts over the years showing how we have improved and yes, I know …

Foreword And Recipients Of Kentucky Alfalfa Awards [2012], Garry D. Lacefield, Christi L. Forsythe

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

Mapview And Cross Section Animations, Jason Luke

Faculty Publications

Movie 1: A series of time slices animated through the amplitude volume. Movie 2: A series of time slices animated through the semblance volume. Movie 3: Cross section animation from SW-NE through the amplitude volume. Movie 4: Cross section animation from SW-NE through the semblance volume.

Three-Dimensional Seismic Study Of Pluton Emplacement, Offshore Northwestern New Zealand, Jason Allen Luke

Theses and Dissertations

Detailed 3D seismic images of a volcano-plutonic complex offshore northwestern New Zealand indicate the intrusive complex lies in a relay zone between NE-trending en echelon normal faults. A series of high angle normal faults fan out from the margin of the Southern Intrusive Complex and cut the folded strata along the margin. These faults terminate against the margins of the intrusion, extend as much as 1 pluton diameter away from the margin, and then merge with regional faults that are part of the Northern Taranaki Graben. Offset along these faults is on the order of 10s to over 100 meters. …

Coupling Of Fog And Marine Microbial Content In The Near-Shore Coastal Environment, M. E. Ducker, Gregory D. O'Mullan, K. C. Weathers, A. R. Juhl, M. Uriarte

Publications and Research

Microbes in the atmosphere (microbial aerosols) play an important role in climate and provide an ecological and biogeochemical connection between oceanic, atmospheric, and terrestrial environments. However, the sources and environmental factors controlling the concentration, diversity, transport, and viability of microbial aerosols are poorly understood. This study examined culturable microbial aerosols from a coastal environment in Maine (USA) and determined the effect of onshore wind speed and fog presence on deposition rate, source, and community composition. During fog events with low onshore winds (

The Ecology Of Pulse Events: Insights From An Extreme Climatic Event In A Polar Desert Ecosystem, U. N. Nielsen, D. H. Wall, B. J. Adams, R. A. Virginia

Dartmouth Scholarship

Climate change is occurring globally, with wide ranging impacts on organisms and ecosystems alike. While most studies focus on increases in mean temperatures and changes in precipitation, there is growing evidence that an increase in extreme events may be particularly important to altering ecosystem structure and function. During extreme events organisms encounter environmental conditions well beyond the range normally experienced. Such conditions may cause rapid changes in community composition and ecosystem states. We present the impact of an extreme pulse event (a flood) on soil communities in an Antarctic polar desert. Taylor Valley, McMurdo Dry Valleys, is dominated by large …

Projected Surface Raidiative Forcing Due To 2000-2050 Land-Cover Land-Use Albedo Change Over The Eastern United States, Christoper A. Barnes, David P. Roy, Thomas R. Loveland

GSCE Faculty Publications

Satellite-derived contemporary land-cover land-use (LCLU) and albedo data and modeled future LCLU are used to study the impact of LCLU change from 2000 to 2050 on surface albedo and radiative forcing for 19 ecoregions in the eastern United States. The modeled 2000–2050 LCLU changes indicate a future decrease in both agriculture and forested land and an increase in developed land that induces ecoregion radiative forcings ranging from −0.175 to 0.432 W m−2 driven predominately by differences in the area and type of LCLU change. At the regional scale, these projected LCLU changes induce a net negative albedo decrease (−0.001) and …

Hydrologic And Microclimate Characterizations Of Thornton’S Cave, West-Central Florida (Usa), Dorien K. Mcgee

Studia UBB Geologia

A cave’s environment is controlled by a suite of factors unique to the environments in which they formed, including, but not limited to, regional geologic and climate settings. These factors collectively owe to wide variations in cave biology, geomorphology and overall speleogenesis. This report combines local climate, hydrologic, and CO₂ data collected over the course of a two-year study at Thornton’s Cave, a partially-flooded cave in the West-Central Florida karst belt, to characterize its current environment and yield insight regarding how changes in regional climate and hydrology impact its past and future speleogenesis. Data loggers continuously monitoring cave and …

Sedimentary Succesion Of The Lower Cretaceous Deposits From The North-Western Part Of Pădurea Craiului (Apuseni Mountains, Romania), Daniel F. Lazar, Ioan I. Bucur, Ioan Cociuba, Emanoil Sasaran

Studia UBB Geologia

Within the general succession of the Lower Cretaceous deposits from the Vârciorog-Dobreşti area (Pădurea Craiului Mountains), carbonate and terrigenous deposits were identified. The limestones were assigned to two distinctive lithostratigraphic units: the Valea Măgurii and Vârciorog formations. Based on the orbitolinids Palorbitolina lenticularis and Mesorbitolina texana their ages are assigned to the early Aptian, and respectively late Aptian–Albian. The terrigenous facies mainly include fine grained deposits (clays, siltites, marls) and, to a lesser extent, coarser ones (glauconitic sandstones and conglomerates), and they are attributed to the Ecleja and Vârciorog formations. The marls of the Ecleja Formation have been observed in …

Sensitivity Analysis Of The Gems Soil Organic Carbon Model To Land Cover Land Use Classification Uncertainties Under Different Climate Scenarios In Senegal, Amadou M. Dieye, David P. Roy, N. P. Hanan, S. Lui, M. Hansen, A. Toure

GSCE Faculty Publications

Spatially explicit land cover land use (LCLU) change information is needed to drive biogeochemical models that simulate soil organic carbon (SOC) dynamics. Such information is increasingly being mapped using remotely sensed satellite data with classification schemes and uncertainties constrained by the sensing system, classification algorithms and land cover schemes. In this study, automated LCLU classification of multi-temporal Landsat satellite data were used to assess the sensitivity of SOC modeled by the Global Ensemble Biogeochemical Modeling System (GEMS). The GEMS was run for an area of 1560km2 in Senegal under three climate change scenarios with LCLU maps generated using different Landsat …

Agriculture Futures: Potential Rural Land Uses On The Palusplain, Rodney Safstrom, Nicolyn Short Dr

Resource management technical reports

The purpose of this project was to identify agricultural land use options and opportunities within the Serpentine–Jarrahdale and Murray Shires, with particular focus on the Palusplain wetland section. The report will contribute to the Department of Planning’s natural resource management plan for the region and guide development of regional and local planning strategies. Historically, the Palusplain was a slowly moving, interconnected, seasonal wetland system with areas of higher ground. Extensive clearing and drainage occurred in the late 1800s through to the mid-1900s to facilitate agriculture; however, agriculture has been found to be a major contributor of nutrients to the system. …

2012-2013 Lime And Nutrient Recommendations, Lloyd Murdock, Edwin Ritchey

Agriculture and Natural Resources Publications

The recommendations found in this publication are a result of a biennial review of soil fertility research and soil test data collected in Kentucky.

Effects Of Stochastic Freshwater Flux On The Atlantic Thermohaline Circulation, Alyssa Pampell, Alejandra Aceves

Mathematics Research

No abstract provided.

Evolution Of The Lake Titicaca Basin And Its Diatom Flora Over The Last ~ 370,000 Years, Sherilyn C. Fritz, P. A. Baker, Pedro M. Tapia, Trisha L. Spanbauer, Karlyn S. Westover

Department of Earth and Atmospheric Sciences: Faculty Publications

In recent years, deep drilling undertaken as part of the International Continental Drilling Program has generated multiple long lacustrine sedimentary records to reconstruct continental paleoclimate. In many cases, the tectonic and geomorphic history of these basins is under-constrained and poorly known, which affects the interpretation of climate history from geophysical, geochemical, and paleobiotic proxies in the sedimentary record. In addition, non-analog biotic assemblages that reflect evolutionary processes may constrain the reconstruction of past environments. In the drill-core record of Lake Titicaca, spanning the last ~ 370 ka, the diatom stratigraphy reflects both the influence of climate and the longterm evolution …

A Comprehensive Method For Fractionating Soil Organic Matter Not Protected And Protected From Decomposition By Physical And Chemical Mechanisms, César Plaza, José M. Fernández, Engil Isadora Pujol Pereira, Alfredo Polo

School of Earth, Environmental, & Marine Sciences Faculty Publications

The objective of this work was to describe a method for isolating meaningful and measurable soil organic matter (SOM) pools that differ in the mechanisms by which they are protected from decomposition. The proposed method is appropriate for soil C stabilization and sequestration studies. Unlike previous fractionation schemes, this procedure allows free SOM located between aggregates (unprotected C pool) and SOM occluded within both macroaggregates and microaggregates (C weakly and strongly protected by physical mechanisms, respectively) to be recovered separately, freed from the soil mineral matrix and the mineral-associated SOM pool (C pool protected by chemical mechanisms) and thus well …

The Importance Of Craniofacial Sutures In Biomechanical Finite Element Models Of The Domestic Pig, Jen A. Bright

School of Geosciences Faculty and Staff Publications

Craniofacial sutures are a ubiquitous feature of the vertebrate skull. Previous experimental work has shown that bone strain magnitudes and orientations often vary when moving from one bone to another, across a craniofacial suture. This has led to the hypothesis that craniofacial sutures act to modify the strain environment of the skull, possibly as a mode of dissipating high stresses generated during feeding or impact. This study tests the hypothesis that the introduction of craniofacial sutures into finite element (FE) models of a modern domestic pig skull would improve model accuracy compared to a model without sutures. This allowed the …

Wayne E. Sabbe Arkansas Soil Fertility Studies 2011, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.

Calcareous Nannofossils And Sedimentary Facies In The Upper Cretaceous Bozeş Formation (Southern Apuseni Mountains, Romania), Ramona Balc, Lóránd Silye, Luminita Zaharia

Studia UBB Geologia

The lithology, sedimentology and biostratigraphy of the Bozes Formation, which crop out in the SE Metaliferi Mountains (Apuseni Mts.) have been investigated in order to establish the age of the deposits and the depositional environment.

The sedimentary structures and facies are interpreted as indicating a deep-water depositional environment, representing part of a submarine fan lobe. Three facies assemblages have been identified and described. Calcareous nannofossils were used to determine the age of the investigated deposits. The presence of Lucianorhabdus cayeuxii and Calculites obscurus indicates the CC17 biozone, while UC13 Zone is pointed out by the continuous occurrence of Arkhangelskiella cymbiformis …

Some Biogeographers, Evolutionists And Ecologists: Chrono-Biographical Sketches, Charles H. Smith, Joshua Woleben, Carubie Rodgers

DLPS Faculty Publications

Each name in the following list of naturalists is linked to a corresponding capsule "chrono-biographical" sketch of that individual prepared by the authors. Coverage extends from approximately 1950 backward in time as far as the eighteenth century; figures from all over the world are included (though there is admittedly a decided Anglo-American bias). The target subject here is biogeography, but this being a broad field there are many persons on the list who are better known as climatologists, zoologists, botanists, ecologists, oceanographers, paleontologists, etc.--in other words, who made their main reputations in cognate disciplines.

This service has been set up …

Slides: Unconventional Gas And Oil – Potential Air Emissions, John Imse

Air Quality Impacts from Oil and Gas Development (January 27)

Presenter: John Imse, Hydrogeologist, ENVIRON International Corporation presents an overview of the current methods for developing a shale play and the typical site operations

10 slides

Slides: Air Monitoring And Litigation Update, John Jacus

Air Quality Impacts from Oil and Gas Development (January 27)

Presenter: John Jacus, Partner, Davis Graham & Stubbs LLP, reviews recent litigation aimed at oil and gas development activities with respect to air emissions impacts, and also several recent and ongoing studies and ambient monitoring efforts focused upon air emissions from oil and gas activities

23 slides

Slides: Air Quality - Oil And Gas Development, Paul R. Tourangeau

Air Quality Impacts from Oil and Gas Development (January 27)

Presenter: Paul Tourangeau, Assistant General Counsel, DCP Midstream, LP and former Director, Colorado Air Pollution Control Division, addresses regulatory requirements and policies related to air emissions from the oil and gas sector, including recent and current initiatives at the state and federal level

8 slides

Slides: Hydrofracking: Air Issues And Community Exposure, Debra A. Kaden

Air Quality Impacts from Oil and Gas Development (January 27)

Presenter: Debra Kaden, Ph.D., Toxicologist, ENVIRON International Corporation, discusses air concentrations of chemicals of potential health concern surrounding oil and gas development activities, as well as temporal and spatial patterns of these chemicals in the ambient environment. Such information is necessary to evaluate possible health impacts of the drilling process on air in surrounding communities.

19 slides

Agenda: Air Quality Impacts From Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center

Air Quality Impacts from Oil and Gas Development (January 27)

Oil and gas development and hydraulic fracturing have received enormous attention over the past few years, and most of that attention has focused on the potential impacts of such development on water quality. However, the potential impacts on air quality from oil and gas development have received far less public and media attention and discussion. This two-hour program will assess the current scientific knowledge, regulatory requirements and policies regarding the impacts on air quality from oil and gas development and will address current initiatives at the state and national levels to further regulate and control those impacts.