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Articles 9001 - 9030 of 12076
Full-Text Articles in Physical Sciences and Mathematics
Hay Supply, Price And The Future, Tom Keene
Hay Supply, Price And The Future, Tom Keene
Kentucky Alfalfa and Stored Forage Conference
As we prepare for the 2008 hay crop, it’s probably a good time to look back and see what the ’07 crop brought to us and wonder if it will have any bearing on the upcoming 2008 crop.
Alfalfa Hay And Balage: Testing For Quality, Kimberly Field
Alfalfa Hay And Balage: Testing For Quality, Kimberly Field
Kentucky Alfalfa and Stored Forage Conference
Why Test Your Hay?
- By knowing the percentages and protein levels you can increase/decrease the amount of supplements needed from your analysis report and will help the producer set feeding rations
- If you do not know what you have in your forage you are over or under feeding your livestock – therefore affecting the health of your animal and your pocket book
Is There A Benefit To Alfalfa Balage?, Gary Bates
Is There A Benefit To Alfalfa Balage?, Gary Bates
Kentucky Alfalfa and Stored Forage Conference
Making hay in the mid-South has always been a difficult process. High humidity and rainfall often make drying a long, tedious, if not impossible proposition. Over the last few years there has been an increased interest in making round bale silage, or balage, from forage crops. Fermenting alfalfa for storage has several advantages and disadvantages over regular haymaking systems.
Alfalfa: Forage Crop Of The Future, Neal P. Martin, David Mertens, Ronald Hatfield, Hans Jung
Alfalfa: Forage Crop Of The Future, Neal P. Martin, David Mertens, Ronald Hatfield, Hans Jung
Kentucky Alfalfa and Stored Forage Conference
In 2007, U.S. farmers harvested 23.6 million acres of alfalfa. Alfalfa harvested as hay and haylage produced 82.8 million tons valued at approximately $9.4 billion, ranking behind only corn and soybeans. Alfalfa hay supports dairy, beef, sheep, and horse production in the U.S. as well as a growing export market.
National Hay Association President's Perspective: What A Year To Be President, Ron Tombaugh
National Hay Association President's Perspective: What A Year To Be President, Ron Tombaugh
Kentucky Alfalfa and Stored Forage Conference
Over the years, I have had the opportunity to attend the Kentucky Alfalfa Conference in Cave City. Usually it was combined with a trip to deliver hay into Kentucky to either a dairy, beef, or horse customer. This is an excellent event.
The following is my “acceptance” speech given in September 2007 in Columbus, Ohio, when I was installed as President of the National Hay Association.
Certified Weed Free Hay And Straw Program, Kenny E. Perry
Certified Weed Free Hay And Straw Program, Kenny E. Perry
Kentucky Alfalfa and Stored Forage Conference
There is a growing demand in North America for the use of certified weed free hay and straw as a preventative program to limit the spread of noxious weeds. This voluntary certification program is designed to assure that hay and straw sold with proper certification identification meets minimum standards designed to limit the spread of noxious and undesirable weeds. Buyers are provided assurance that hay and straw certified through this program meets these minimum standards.
Alfalfa: Back To Basics, S. Ray Smith, Thomas Adam Probst
Alfalfa: Back To Basics, S. Ray Smith, Thomas Adam Probst
Kentucky Alfalfa and Stored Forage Conference
In the past, many university research trials and on-farm demonstrations have determined a range of cutting intervals for alfalfa. Most researchers have agreed that the optimum harvest frequency is about every 35 days to ensure top yields, without sacrificing too much in the way of forage quality and stand persistence. Others use a strategy of harvesting at 10% bloom.
Haymaking: A Trip Down Memory Lane, Garry D. Lacefield, John E. Baylor
Haymaking: A Trip Down Memory Lane, Garry D. Lacefield, John E. Baylor
Kentucky Alfalfa and Stored Forage Conference
On a hot day in August, I climbed into the dust-free air-conditioned cab of a new tractor to assist in a hay baling demonstration during a field day. Hay yield was low as a result of the drought, so it was important that I get everything from the small windrow. I adjusted the volume on the surround sound stereo where I had just inserted a CD of the Eagles Greatest Hits. Now we’re ready to bale – first let me check the GPS and get a check on the moisture of the hay coming into the bale chamber – moisture …
Foreword And Recipients Of Kentucky Alfalfa Awards [2008], Garry D. Lacefield, Christi L. Forsythe
Foreword And Recipients Of Kentucky Alfalfa Awards [2008], Garry D. Lacefield, Christi L. Forsythe
Kentucky Alfalfa and Stored Forage Conference
No abstract provided.
From Debate To Design: Issues In Clean Energy And Climate Change Law And Policy, Leslie Parker, Jennifer Ronk, Rachel Maxwell, Bradford Gentry, Marijn Wilder, James Cameron
From Debate To Design: Issues In Clean Energy And Climate Change Law And Policy, Leslie Parker, Jennifer Ronk, Rachel Maxwell, Bradford Gentry, Marijn Wilder, James Cameron
Yale School of the Environment Publications Series
A report on the work of the REIL Network 2007-2008
Wind Deposition Of Mud Aggregates And Their Role In Development Of Lamellae In The Fair Oaks Dunes, Indiana, Zoran Kilibarda, Erin Argyilan, Joseph Blockland
Wind Deposition Of Mud Aggregates And Their Role In Development Of Lamellae In The Fair Oaks Dunes, Indiana, Zoran Kilibarda, Erin Argyilan, Joseph Blockland
Zoran Kilibarda
Three parabolic dunes from the Fair Oaks Dune field in northern Indiana were excavated, in order to study the properties and genesis of lamellae. Reddish lamellae with sharp upper boundaries and diffuse lower boundaries are intercalated with yellowish sand layers within the upper 3–5 m of each dune. The thicknesses of the lamellae decrease from N2 cm in the east (Winamac dune) to b0.3 cm in the west (Shelby dune). In deeper parts of the dunes lamellae were absent, but straight or slightly convex, clay rich depositional laminae were present. Thin sections of lamellae reveal thatmost of the clays are …
Long-Term Tillage Frequency Effects On Dryland Soil Physical And Hydraulic Properties, Andrew W. Lenssen, J. D. Jabro, U. M. Sainju, W. B. Stevens, R. G. Evans
Long-Term Tillage Frequency Effects On Dryland Soil Physical And Hydraulic Properties, Andrew W. Lenssen, J. D. Jabro, U. M. Sainju, W. B. Stevens, R. G. Evans
Andrew W. Lenssen
Soil tillage is considered one of most important practices in agricultural production due to its influence on physical, chemical, and biological properties of the soil environment. The effect of a long-term tillage [no-till (NT), spring till (ST), and fall and spring till (FST)] was investigated on soil penetration resistance (PR), bulk density (BD), gravimetric water content (GWC) and saturated hydraulic conductivity (Ks) under dryland conditions. Tillage effects on these physical properties were tested after 22 years on a Dooley sandy loam (fine-loamy, mixed Typic Argiborolls) derived from glacial till parent material. The statistical design used was a randomized complete block …
Response Of Sahara Mustard (Brassica Tournefortii) To Water Addition And Soil Disturbance, Alexis Suazo, Jessica E. Spencer, Scott R. Abella
Response Of Sahara Mustard (Brassica Tournefortii) To Water Addition And Soil Disturbance, Alexis Suazo, Jessica E. Spencer, Scott R. Abella
Vegetation Monitoring Presentations
Invasive exotic species can have a significant impact on the structure, function, and diversity of ecological communities. Sahara mustard (Brassica tournefortii) is one of the top exotic invasive species spreading through the southwestern deserts of North America. In arid environments, it is well documented that species abundance is sensitive to rainfall (Beatly 1974, Ernest et al. 2000). In the Mojave Desert, winter precipitation can trigger massive germination events (Beatly 1974). As a winter annual, Sahara mustard may have a positive response to winter precipitation by germinating, growing, and reproducing before native annuals, monopolizing soil moisture and nutrients, and potentially changing …
Setting Targets For Resource Condition In Narrakine Gully And Highbury Catchments, Leon Van Wyk, Gregory Paul Raper
Setting Targets For Resource Condition In Narrakine Gully And Highbury Catchments, Leon Van Wyk, Gregory Paul Raper
Resource management technical reports
No abstract provided.
Soil Chemistry Northwest New Mexico, Larry V. Benson
Soil Chemistry Northwest New Mexico, Larry V. Benson
United States Geological Survey: Datasets
These data result from soil chemistry samples extracted from several regions in northwest New Mexico and were used in the following publications:
Larry V. Benson, J. Stein, H. Taylor, R. Friedman, and T. C. Windes. 2006. The agricultural productivity of Chaco Canyon and the source(s) of pre-Hispanic maize found in the Pueblo Bonito Great House. In: J. E. Staller, R. H. Tykot, and B. F. Benz, eds. Histories of Maize: Multidisciplinary Approaches to the Prehistory, Linguistics, Biogeography, Domestication, and Evolution of Maize, 289–314. Elsevier/Academic Press.
Larry V. Benson. 2017. The Chuska Slope as an agricultural alternative to Chaco …
Drainage Benchmarking In The Northern Agricultural Region : Landholder Survey, Alison Beattie, Angela Stuart-Street
Drainage Benchmarking In The Northern Agricultural Region : Landholder Survey, Alison Beattie, Angela Stuart-Street
Resource management technical reports
No abstract provided.
Lead Concentration Of Soils In Sorby Hills Area Of Proposed M2 Irrigation Area, East Kimberley, Edward (Ted) Arnold Griffin, Noel R. Schoknecht, Ross Brennan, Jane Speijers, Dave Allen, Mike Freeman
Lead Concentration Of Soils In Sorby Hills Area Of Proposed M2 Irrigation Area, East Kimberley, Edward (Ted) Arnold Griffin, Noel R. Schoknecht, Ross Brennan, Jane Speijers, Dave Allen, Mike Freeman
Resource management technical reports
No abstract provided.
Radiocarbon Evidence For The Importance Of Surface Vegetation On Fermentation And Methanogenesis In Contrasting Types Of Boreal Peatlands, J. P. Chanton, P. H. Glaser, L. S. Chasar, David J. Burdige, M. E. Hines, D. I. Seigel, L. B. Tremblay, W. T. Cooper
Radiocarbon Evidence For The Importance Of Surface Vegetation On Fermentation And Methanogenesis In Contrasting Types Of Boreal Peatlands, J. P. Chanton, P. H. Glaser, L. S. Chasar, David J. Burdige, M. E. Hines, D. I. Seigel, L. B. Tremblay, W. T. Cooper
OES Faculty Publications
We found a consistent distribution pattern for radiocarbon in dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and methane replicated across spatial and temporal scales in northern peatlands from Minnesota to Alaska. The 14C content of DOC is relatively modern throughout the peat column, to depths of 3 m. In sedge-dominated peatlands, the 14C contents of the products of respiration, CH4 and DIC, are essentially the same and are similar to that of DOC. In Sphagnum- and woody plant-dominated peatlands with few sedges, however, the respiration products are similar but intermediate between the 14C contents of …
A Study Of Land Surface Processes Using Land Surface Models Over The Little River Experimental Watershed, A. K. Sahoo, P. A. Dirmeyer, P. R. Houser, Menas Kafatos
A Study Of Land Surface Processes Using Land Surface Models Over The Little River Experimental Watershed, A. K. Sahoo, P. A. Dirmeyer, P. R. Houser, Menas Kafatos
Mathematics, Physics, and Computer Science Faculty Articles and Research
Three different land surface models (Hydrological improvements to the Simplified version of the Simple Biosphere model (HySSiB), Noah model, and Community Land Model (CLM)) were simulated on the NASA Goddard Space Flight Center’s Land Information System platform at 1-km resolution over the Little River Experimental Watershed, Georgia, and the simulated results were analyzed to address the local-scale land-atmosphere processes. All the three models simulated the soil moisture in space and time realistically. The Noah model produced higher soil moisture whereas the CLM got lower soil moisture with many dry down phases. CLM and HySSiB models were oversensitive to the atmospheric …
Using Biosolids To Enhance Phytoremediation Of Oil-Contaminated Soil, Heather N. Markway, Duane C. Wolf, Kaaron J. Davis, Edward E. Gbur
Using Biosolids To Enhance Phytoremediation Of Oil-Contaminated Soil, Heather N. Markway, Duane C. Wolf, Kaaron J. Davis, Edward E. Gbur
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
While the plant rhizosphere and associated microbial processes have been shown to amplify the degradation rate of chemical residues in soils, phytoremediation can be a slow process. The objective of this greenhouse study was to determine if the addition of biosolids as an organic soil amendment would enhance growth of plants in oil-contaminated soil and thus potentially increase effectiveness of phytoremediation. Pearl millet (Pennisetum glaucum (L.) R. Br.) or sudangrass (Sorghum sudanense (Piper) Stapf (Piper)) was grown in a Captina silt loam (finesilty, siliceous, mesic Typic Fragiudults) contaminated with 5% crude oil (v/w) and amended with 24 g biosolids/kg soil. …
Methodology And Assessment Of The Susceptibility Of Potato Genotypes To Phytophthora Erythrosetpica Causal Organism Of Pink Rot, Erica Fitzpatrick-Peabody
Methodology And Assessment Of The Susceptibility Of Potato Genotypes To Phytophthora Erythrosetpica Causal Organism Of Pink Rot, Erica Fitzpatrick-Peabody
Electronic Theses and Dissertations
Phytophthora erythroseptica Pethyb., causal organism of potato (Solanum tuberosum L.) pink rot is a soil-borne ubiquitous oomycete pathogen that can cause severe losses in both the field prior to harvest and during storage. The efficacy of the most effective fungicide, mefenoxam for control of P. erythroseptica is in jeopardy due to the widespread development of resistance in the US. Cultivar resistance may provide the best option for management of P. erythroseptica in the future. Recently published reports of cultivars susceptible to P. erythroseptica are based on evaluation techniques involving detached tubers and nontuber germplasm rather than field evaluations. Screening detached …
The Balancing Act, David Weaver
The Balancing Act, David Weaver
Conference papers and presentations
Nutrient management is as much a global issue as a local one with a balance required between economics and environment, inherent biological limitations and expectations of nutrient use efficiency, and traditional fertiliser practices and actual enterprise nutrient requirements. The concept of nutrient balance depends on context and scale. Nutrient balance can be considered at a global scale, where issues of nutrient stocks, cycles, depletion and transfer of a particular element are important. For a single farm enterprise, nutrient balance might be considered in terms of phosphorus (P) inputs into and outputs from the enterprise. This is commonly known as a …
Comparison Of Landslides And Their Related Outburst Flood Deposits, Owyhee River, Southeastern Oregon, Shannon Marian Othus
Comparison Of Landslides And Their Related Outburst Flood Deposits, Owyhee River, Southeastern Oregon, Shannon Marian Othus
All Master's Theses
Numerous landslides have entered the Owyhee River canyon north of Rome, Oregon. As the river flows through different lithologic units, the style of mass wasting changes from large slump events and small rock falls to large earthflows. The change in mechanism of mass wasting from upstream to downstream seems to depend on several factors: (1) the ratio of the basalt cap to the exposed underlying sediments, (2) the composition of underlying sediments, (3) the canyon geometry, and (4) the extent and frequency of mass wasting. All three mechanisms of mass wasting have the ability to block the river channel and …
Reclamation Of Saline Soils Through Revegetation In Australia: Plants, Processes And People, Edward G. Barrett-Lennard
Reclamation Of Saline Soils Through Revegetation In Australia: Plants, Processes And People, Edward G. Barrett-Lennard
Conference papers and presentations
Secondary salinity (salinity induced by human activity) is a major world problem. Hydrological imbalances in landscapes cause watertables to rise, drawing salt from deeper in the soil profile to the soil surface, where the combined stresses of salinity and waterlogging threaten the growth of crops and pastures. The reversal of salinity by the broad‐scale reintroduction of perennial plants back into landscapes may not be economically feasible, but watertables may be at least partly directly drawn‐down by the grow th of salt tolerant plants (halophytes) on saltland . This review summarises data from Australia in which the water use by perennial …
Tb196: Temperature, Soil Moisture, And Streamflow At The Bear Brook Watershed In Maine (Bbwm), Ivan J. Fernandez, Joseph E. Karem, Stephen A. Norton, Lindsey E. Rustad
Tb196: Temperature, Soil Moisture, And Streamflow At The Bear Brook Watershed In Maine (Bbwm), Ivan J. Fernandez, Joseph E. Karem, Stephen A. Norton, Lindsey E. Rustad
Technical Bulletins
The Bear Brook Watershed in Maine is a whole-ecosystem chemical manipulation initiated in 1987 to study the effects of acid deposition on forests and surface waters. The focus of this research was to understand the biogeochemical response of watersheds with emphasis on chemistry and hydrology. In 2001 a program was initiated to provide more detailed measurements of temperature and moisture to examine critical linkages amongst chemical, biological, and physical processes that ultimately work together to define ecosystem function. The purpose of this publication is to provide data from the initial phase of soil temperature, air temperature, and soil moisture measurements …
The Global Stratotype Section And Point (Gssp) For The Base Of The Katian Stage Of The Upper Ordovician Series At Black Knob Ridge, Southeastern Oklahoma, Usa, Daniel Goldman, Stephen A. Leslie, Jaak Nõlvak, Seth Young, Stig M. Bergström, Warren D. Huff
The Global Stratotype Section And Point (Gssp) For The Base Of The Katian Stage Of The Upper Ordovician Series At Black Knob Ridge, Southeastern Oklahoma, Usa, Daniel Goldman, Stephen A. Leslie, Jaak Nõlvak, Seth Young, Stig M. Bergström, Warren D. Huff
Geology Faculty Publications
The International Subcomission on Ordovician Stratigraphy (ISOS) of the International Commission on Stratigraphy (ICS) recently defined the base of the global Upper Ordovician Series to be at the first appearance datum (FAD) of the graptolite species Nemagraptus gracilis in the Fågelsång GSSP in southern Sweden. This designation recognized the tremendous utility for global correlation of the first appearance of a cosmopolitan taxon that occurs within a consistent succession of other first appearance datums (e.g., Finney and Bergström, 1986; Bergström et al., 2000). Current efforts by the ISOS have focused on subdividing the Upper Ordovician into three stages and choosing appropriate …
Extending The Season For Sustainability In Utah, Britney Hunter
Extending The Season For Sustainability In Utah, Britney Hunter
Undergraduate Honors Capstone Projects
The importance of providing fresh produce on a local level is becoming a widespread consideration among people concerned with the character of their food. For regions without an opportune growing climate, extending the growing season can drastically advance productivity. High tunnels are one way to effectively and profitably extend the growing season in cold climates. The benefits of growing in a high tunnel go beyond raising the temperature. High tunnels contribute to higher quality small fruits and vegetables. The benefits of growing in high tunnels have been explored in other states and could be exploited by Utah growers. Utah's climate …
Forage Spokesman Information, Lowell J. Clifford, Barry Drury, John Mcglone, Mac Stone
Forage Spokesman Information, Lowell J. Clifford, Barry Drury, John Mcglone, Mac Stone
Kentucky Grazing Conference
No abstract provided.
Techniques For Reducing Mud Problems And Improving Pasture Abused Areas, Ken Johnson
Techniques For Reducing Mud Problems And Improving Pasture Abused Areas, Ken Johnson
Kentucky Grazing Conference
I would like to approach this topic from two directions, mud control and then problem areas. Mud control in concentrated areas almost impossible with forages alone. Using a mud control product is usually advised. I will talk about several.
My Experiences With Summer Lovegrass, Tim Phillips
My Experiences With Summer Lovegrass, Tim Phillips
Kentucky Grazing Conference
I first heard about teff (Eragrostis tef) being used as a hay crop in early 2006 at a meeting near the Shenandoah Valley area of Virginia. The meeting was about orchardgrass production, so I was speaking about new varieties that are available for producers to grow. Several farmers had experienced massive stand losses of their established orchardgrass hay fields, so they had tried this ‘new’ summer annual grass. Some of the farmers were surprised that I knew about this grass, but I didn’t know about its use as a hay or pasture grass. Teff is the Ethiopian name for a …