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- Graduate Theses and Dissertations (1)
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Articles 1 - 30 of 71
Full-Text Articles in Life Sciences
Perceptions And Management Of Ventenata By Producers In The Inland Pacific Northwest, Lisa Jones, John Wallace, Kathleen Painter, Pamela Pavek, Timothy S. Prather
Perceptions And Management Of Ventenata By Producers In The Inland Pacific Northwest, Lisa Jones, John Wallace, Kathleen Painter, Pamela Pavek, Timothy S. Prather
The Journal of Extension
Ventenata is an annual grass that has invaded agricultural and wildland settings in the Inland Pacific Northwest, causing economic and ecological losses. We know little about producers’ perceived risks and management of ventenata. We present results of surveys in 2011 and 2014 targeting producers across affected counties in Idaho and Washington. Awareness of ventenata and costs to producers increased across that time interval. Respondents attending ventenata Extension events adopted recommended management strategies more than those who did not attend. Our study documents the importance of continued integrated pest management research in concert with stakeholder engagement and education.
Effect Of Forage Management Strategies And Land Use Change On Nitrogen Budget And Soil Health Parameters In Pasture Systems, Yili Meng
LSU Doctoral Dissertations
Pastures produce hay for livestock, and they conserve soil, water, and air resources. However, high nitrogen (N) fertilizer demands in pasture production have significant implication on greenhouse gas emission and environmental pollution. Appropriate forage management strategies can reduce environmental N loss and improve soil health, to enhance the long-term pasture productivity. Therefore, this study was carried out to investigate the effects of management strategies on N budgets and soil health parameters in subtropical pastures. Both field and laboratory experiments were conducted to evaluate the effects of N stabilizers including urease inhibitor and nitrification inhibitor on pasture yield, greenhouse gas emission, …
Establishment Of Pollinator Habitat Within A Livestock Pasture Ecosystem, Roshani Sharma Acharya
Establishment Of Pollinator Habitat Within A Livestock Pasture Ecosystem, Roshani Sharma Acharya
Graduate Theses and Dissertations
Pollinators are important for fertilization, setting fruits, and seed development of more than 78% of the flowering plants that provide food for human beings and other species. Use of pollinators to maximize crop production is a proven agricultural practice; however, it has been less explored in livestock forage production systems. This study investigated pollinator abundance and diversity in pastures using different sampling methods and determined the impact of different pasture management practices on insect pollinators in a livestock pasture ecosystem. In Chapter 2, utility of four different colors of pan trap (blue, green, yellow, and purple) for sampling bees in …
Grazing System And Management For Goat Production, Steve Hart
Grazing System And Management For Goat Production, Steve Hart
Professional Agricultural Workers Journal
Abstract Grazing system management is for supplying inexpensive, adequate nutrition for the goat enterprise. This involves managing forages to facilitate dry matter production and managing grazing so forage quality is adequate and harvest efficiency is high while avoiding consuming internal parasites. Since nutrient costs are greatest for winter, the grazing system should be planned to provide some grazing during winter. The forage system should be managed to provide the greatest proportion of nutrients possible during kidding and lactation. The base forage species can be overseeded with cool-season or leguminous species to improve forage production, quality or the seasonal distribution of …
Cover Crops For Utah, Kristie Buckland, Earl Creech, Jennifer R. Reeve, Grant Cardon, Matt Yost, Deric Despain
Cover Crops For Utah, Kristie Buckland, Earl Creech, Jennifer R. Reeve, Grant Cardon, Matt Yost, Deric Despain
All Current Publications
This fact sheet provides the current state of knowledge on cover crop management for Utah based on USU research and local grower experience.
Alteration Of Rumen Bacteria And Protozoa Through Grazing Regime As A Tool To Enhance The Bioactive Fatty Acid Content Of Bovine Milk, Melissa L. Bainbridge, Laurel K. Saldinger, John W. Barlow, Juan P. Alvez, Joe Roman, Jana Kraft
Alteration Of Rumen Bacteria And Protozoa Through Grazing Regime As A Tool To Enhance The Bioactive Fatty Acid Content Of Bovine Milk, Melissa L. Bainbridge, Laurel K. Saldinger, John W. Barlow, Juan P. Alvez, Joe Roman, Jana Kraft
Rubenstein School of Environment and Natural Resources Faculty Publications
Rumen microorganisms are the origin of many bioactive fatty acids (FA) found in ruminant-derived food products. Differences in plant leaf anatomy and chemical composition between cool- and warm-season pastures may alter rumen microorganisms, potentially enhancing the quantity/profile of bioactive FA available for incorporation into milk. The objective of this study was to identify rumen bacteria and protozoa and their cellular FA when cows grazed a warm-season annual, pearl millet (PM), in comparison to a diverse cool-season pasture (CSP). Individual rumen digesta samples were obtained from five Holstein cows in a repeated measures design with 28-day periods. The treatment sequence was …
Improving Subtropical Grass Pastures On The South Coast Of Western Australia, Paul Sanford, Ron Master, Eric Dobbe
Improving Subtropical Grass Pastures On The South Coast Of Western Australia, Paul Sanford, Ron Master, Eric Dobbe
Bulletins 4000 -
This bulletin reports on the findings of a research project funded by DPIRD and MLA that investigated methods to improve legume content and increase production of both kikuyuand panic-based pastures on the south coast of WA.
Economic And Environmental Sustainability Of Heifer Development Strategies In Pasture-Based Organic Dairy Systems, S. Clay Isom
Economic And Environmental Sustainability Of Heifer Development Strategies In Pasture-Based Organic Dairy Systems, S. Clay Isom
Funded Research Records
No abstract provided.
Enhancing The Content Of Bioactive Fatty Acids In Bovine Milk For Human Health Promotion And Disease Prevention, Melissa Lee Bainbridge
Enhancing The Content Of Bioactive Fatty Acids In Bovine Milk For Human Health Promotion And Disease Prevention, Melissa Lee Bainbridge
Graduate College Dissertations and Theses
Consumer awareness of the link between dietary fats and health outcomes has led to increased demand for food products enriched with bioactive fatty acids (FA). Ruminant-derived fats, such as dairy fats, contribute significantly to the American diet and contain many unique beneficial FA, such as short- and medium-chain FA, n-3 FA, conjugated linoleic acids (CLA), vaccenic acid (VA), as well as odd-and branched-chain FA (OBCFA). Increasing these FA in dairy products by altering farm management practices, such as breed, lactation stage, and nutrition, may improve human health without a change to the diet. The overarching goal of this dissertation was …
Buckhorn Plantain Control In Irrigated Pastures, Allan Sulser, Ralph Whitesides, Cory Ransom
Buckhorn Plantain Control In Irrigated Pastures, Allan Sulser, Ralph Whitesides, Cory Ransom
All Current Publications
This fact sheet describes Buckhorn plantain, a weed with increasing significance in Utah. It includes a management options, and test plot observations and results.
Using A Rising Plate Meter To Determine Paddock Size For Rotational Grazing, Jennifer W. Macadam, Sara R. Hunt
Using A Rising Plate Meter To Determine Paddock Size For Rotational Grazing, Jennifer W. Macadam, Sara R. Hunt
All Current Publications
For rotational grazing of pastures to be most successful, it’s important to match pasture production to ruminant intake, because both can change during the grazing season. This publication shows how a rising plate meter can be used to calculate available pasture dry matter, allowing pasture managers to optimize pasture utilization and ruminant production on pasture.
Urea Formulations On The Productivity Of Bermudagrass And Bermudagrass-White Clover Pastures, Caitlin Timberlake
Urea Formulations On The Productivity Of Bermudagrass And Bermudagrass-White Clover Pastures, Caitlin Timberlake
Theses and Dissertations--Plant and Soil Sciences
Bermudagrass (Cynodon dactylon L.) is a perennial warm-season grass that is very responsive to nitrogen (N) fertilization. Excessive N applications have negative environmental consequences and make maintaining mixed swards difficult. This study determined the effects of enhanced efficiency (EE) N fertilizers and fertilizer rate on bermudagrass yields, nutritive values, and white clover persistence. Nitrogen sources included urea, urea formulated with Agrotain® (U+A), urea with Agrotain® and dicyandiamide (SuperU), a polymer-coated urea (ESN), ESN+urea (75% ESN, 25% urea), and methylene urea (MU). In the urea formulation trial, SuperU and U+A maximized forage yields at lower N rates. The …
Focus Paddocks Trial Report - Benchmarked Result Summary 2010 - 14, Martin Harries, Geoff Anderson
Focus Paddocks Trial Report - Benchmarked Result Summary 2010 - 14, Martin Harries, Geoff Anderson
Grain and other field crops published reports
This report was co-funded by GRDC through project no. DAW00213 - Putting the Focus on Profitable Crop and Pasture Sequences in WA.
Crop and pasture sequences in south-western Australia have changed in the past decade. These survey results from the Focus Paddock project provide data to help growers employ profitable and sustainable crop and pasture sequences. The project compiled information on the nature, suitability and productivity of crop and pasture sequences from 184 paddocks over five years. The results of the analyses of chemical and physical attributes of the soil, weed counts and disease management are presented here.
The survey …
Beef Production & Consumption: Sustainable Alternatives, Jennifer Macadam
Beef Production & Consumption: Sustainable Alternatives, Jennifer Macadam
Agriculture
No abstract provided.
A Business Model For The Small-Scale, Start-Up, Organic Jersey Dairy, Jim Moreda
A Business Model For The Small-Scale, Start-Up, Organic Jersey Dairy, Jim Moreda
Dairy Science
To determine the financial feasibility and stability of starting a small-scale organic jersey dairy in Northern California, given the changes and restrictions that must take place in all aspects of production while operating organically. Using a unique combination of ownership and borrowing, I have created a business model made to appropriately fit the organic dairy system, addressing every area of the operation whether it be business or animal related. Through experience, reviews, and research of organic techniques allowable to apply, I was able to reveal and identify specific areas of husbandry and financing in which I would need to excel …
Ec96-142 Crp Land Use Guide (Conservation Reserve Program), Douglas Anderson
Ec96-142 Crp Land Use Guide (Conservation Reserve Program), Douglas Anderson
Douglas Anderson
Conservation Reserve Program (CRP) contracts held by Nebraska producers will begin to expire in 1996. Thousands of acres of grassland will be eligible for haying, grazing or to be returned to other uses. Land-use decisions made by owners and operators will impact the economic viability and long-term productivity of individual farms, as well as the region as a whole. The intent of the CRP Land Use Guide is not to provide all the asnwers - in many instances we don't even know the questions. It is however, intended to provide an outline of the key issues you will face when …
Soil Microbial Community Response To Climate Change: Results From A Temperate Kentucky Pasture, Lindsey C. Slaughter
Soil Microbial Community Response To Climate Change: Results From A Temperate Kentucky Pasture, Lindsey C. Slaughter
Theses and Dissertations--Plant and Soil Sciences
Climate change is likely to alter plant species composition and interactions between plants and soil microbes that together dictate the quantity and quality of forage produced in pastures, the base of animal production in central Kentucky. This study assessed the seasonal dynamics of soil microbes and their response to increased temperature (+3oC) and growing season precipitation (+30% of the mean annual). Total soil microbial biomass, community composition, enzyme activities, potential carbon mineralization, and catabolic responses to selected substrates were measured seasonally in the different climate treatments. In this system, seasonal variability was a dominant driving factor for all …
Historical Carbon Emissions And Uptake From The Agricultural Frontier Of The Brazilian Amazon, Gillian L. Galford, Jerry M. Melillo, David W. Kicklighter, John F. Mustard, Timothy W. Cronin, Carlos E.P. Cerri, Carlos C. Cerri
Historical Carbon Emissions And Uptake From The Agricultural Frontier Of The Brazilian Amazon, Gillian L. Galford, Jerry M. Melillo, David W. Kicklighter, John F. Mustard, Timothy W. Cronin, Carlos E.P. Cerri, Carlos C. Cerri
Rubenstein School of Environment and Natural Resources Faculty Publications
Tropical ecosystems play a large and complex role in the global carbon cycle. Clearing of natural ecosystems for agriculture leads to large pulses of CO2 to the atmosphere from terrestrial biomass. Concurrently, the remaining intact ecosystems, especially tropical forests, may be sequestering a large amount of carbon from the atmosphere in response to global environmental changes including climate changes and an increase in atmospheric CO2 Here we use an approach that integrates census-based historical land use reconstructions, remote-sensing-based contemporary land use change analyses, and simulation modeling of terrestrial biogeochemistry to estimate the net carbon balance over the period 1901-2006 for …
Non-Irrigated Pasture Establishment And Maintenance, Howard Horton, Burke Davenport, Linden Greenhalgh
Non-Irrigated Pasture Establishment And Maintenance, Howard Horton, Burke Davenport, Linden Greenhalgh
All Current Publications
Small acreage lots are becoming increasingly common throughout Utah. Many of these units have limited or no irrigation. This presents an added challenge to the owner or manager.
Hay Quality Sensory Evaluation Guidelines, T. C. Griggs, S. C. Franson, M. G. Bohle
Hay Quality Sensory Evaluation Guidelines, T. C. Griggs, S. C. Franson, M. G. Bohle
All Current Publications
Grass, legume, and mixed hays contribute to natural resource conservation, diversity in crop rotations, livestock health and performance, and economic returns from sustainable agriculture.
Determining Forage Dry Matter Concentration With A Microwave Oven, T.C. Griggs
Determining Forage Dry Matter Concentration With A Microwave Oven, T.C. Griggs
All Current Publications
No abstract provided.
Ec05-130 Guide For Weed Management In Nebraska, Roch E. Gaussoin, Brady F. Kappler, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Alex Martin, Fred Roeth, Gail A. Wicks, Robert G. Wilson, Robert A. Masters, Patrick J. Shea, Larry D. Schulze
Ec05-130 Guide For Weed Management In Nebraska, Roch E. Gaussoin, Brady F. Kappler, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Alex Martin, Fred Roeth, Gail A. Wicks, Robert G. Wilson, Robert A. Masters, Patrick J. Shea, Larry D. Schulze
University of Nebraska-Lincoln Extension: Historical Materials
One of the major thrusts of all University of Nebraska weed science faculty is the Guide for Weed Management in Nebraska. This guide is not just the work of one or two people, rather it is a joint effort of all the authors to produce a comprehensive, information-packed resource. Each weed science faculty member is responsible for particular sections of the guide. The process of reviewing the current content, checking labels and research data and updating the content can be an extensive process. Each year new herbicide active ingredients and trade names are introduced and figuring out what a herbicide …
Ec05-185 Grazing Winter Wheat In Nebraska, Tom Holman, Drew J. Lyon, David D. Baltensperger, Ivan G. Rush, Ray Weed
Ec05-185 Grazing Winter Wheat In Nebraska, Tom Holman, Drew J. Lyon, David D. Baltensperger, Ivan G. Rush, Ray Weed
University of Nebraska-Lincoln Extension: Historical Materials
Grazing cattle on winter wheat, often prior to grain harvest, is common throughout the southern Great Plains. Grazing generates about $50 million in income for Texas wheat producers and reduces the risk of growing wheat by providing a substantial income source other than grain. Benefits can be realized by grazing prior to the primary environmental risk period for drought, heat stress, and hail, all of which frequently reduce grain yield while having limited impact on forage production. Cattle also are grazed on winter wheat fields in western Nebraska and the surrounding region. Typically in Nebraska, fall forage would be used …
Guidelines For Visual Assessment Of Herbage Mass In Pastures, Thomas Griggs, K. Pack
Guidelines For Visual Assessment Of Herbage Mass In Pastures, Thomas Griggs, K. Pack
All Current Publications
This fact sheet provides pasture managers with a technique to improve their abilities to budget forage to livestock and determine amounts of forage to reserve for mechanical harvest. They can also use the technique to estimate harvest efficiency and pasture growth rates, forecast future forage supply and plan adjustments in stocking rate to balance forage supply with livestock demand.
Re-Assessment Of Carrying Capacities In The Ashburton River Catchment, Alan L. Payne, A M E Van Vreeswyk, K A. Leighton
Re-Assessment Of Carrying Capacities In The Ashburton River Catchment, Alan L. Payne, A M E Van Vreeswyk, K A. Leighton
Agriculture reports
Potential carrying capacities for land systems in the catchment of the Ashburton River were first estimated in 1983 as a result of a rangeland survey of the area undertaken during 1976, 1977 and 1978. Potential carrying capacity (termed capability capacity in the 1988 report) is a suggested sustainable level of use assuming that all pastures are in good range condition, the entire station is adequately watered for the effective management of livestock and seasonal conditions are average. The Ashburton Land Conservation District Committee had previously requested a re-assessment of carrying capacities for Ashburton stations following the widespread establishment of buffel …
Sheep Updates 2003 - Posters, Maxine Brown, Gaye Krebs, Diana Fredorenko, Kathryn Edgerton-Warburton, Evan Burt, Nazrul Islam, Roy Butler, L. G. Butler, S. R. Brown, M. F. D'Antuono, J. C. Greeff, Ken Hart, Tanya Kilminster, Rachel Kirby, M. E. Ladyman, A. C. Schlink, I. H. Williams, P. E. Vercoe, Anyou Lui, Karen Smith, Martin Bent, Matthew Young
Sheep Updates 2003 - Posters, Maxine Brown, Gaye Krebs, Diana Fredorenko, Kathryn Edgerton-Warburton, Evan Burt, Nazrul Islam, Roy Butler, L. G. Butler, S. R. Brown, M. F. D'Antuono, J. C. Greeff, Ken Hart, Tanya Kilminster, Rachel Kirby, M. E. Ladyman, A. C. Schlink, I. H. Williams, P. E. Vercoe, Anyou Lui, Karen Smith, Martin Bent, Matthew Young
Sheep Updates
This session covers eleven papers from different authors:1 Sheep production on annual stubbles/pastures vs lucerne Maxine Brown Gaye Krebs Muresk Institute, Curtin University Diana Fedorenko Kathryn Egerton-Warburton Centre for Cropping Systems, Department of Agriculture Western Australia 2. The value chain of the Lake Grace livestock industry Evan Burt Nazrul Islam Department of Agriculture Western Australia 3. Native pastures, Dorper sheep and the 2002 drought Roy Butler Department of Agriculture Western Australia 4. Commercial sheep breeders can improve their sheep breeding program using wether trials L.G. Butler, S.R. Brown, M.F. D’Antuono, J.C. Greeff Department of Agriculture 5. Western Australia Linked ewe …
Ec03-176 Noxious Weeds Of Nebraska: Musk Thistle, Fred Roeth, Steven R. Melvin, Irvin L. Schleufer
Ec03-176 Noxious Weeds Of Nebraska: Musk Thistle, Fred Roeth, Steven R. Melvin, Irvin L. Schleufer
University of Nebraska-Lincoln Extension: Historical Materials
Musk Thistle is an introduced invasive broadleaf weed native to Europe, North Africa, and Asia. In these areas it is a minor weed because natural enemies keep its population low. When the plant was introduced into North America, its natural enemies were left behind. Without these natural checks, the thistle is able to thrive and compete with native vegetation. This Extension Circular discusses the history, biology, identification, distribution and control of the musk thistle.
Ec03-181 Alfalfa In Nebraska, Bruce Anderson, Loren J. Giesler, Thomas E. Hunt, Shripat T. Kamble, Stevan Z. Knezevic, Charles A. Shapiro
Ec03-181 Alfalfa In Nebraska, Bruce Anderson, Loren J. Giesler, Thomas E. Hunt, Shripat T. Kamble, Stevan Z. Knezevic, Charles A. Shapiro
University of Nebraska-Lincoln Extension: Historical Materials
Alfalfa is the most important forage crop grown in Nebraska, with over 1,000 acres grown in every county. It has the highest feeding value for livestock and one of the highest yield potentials. Alfalfa can produce more protein per acre than any other crop and can provide all of the protein needed by many livestock as well as supplying large amounts of vitamins, minerals, and energy. Protein of alfalfa. In also covers the cultural practices, insect pests, diseases, weeds that affect alfalfa.
Crop Updates 2002 - Weeds, Vanessa Stewart, Peter Newman, Glenn Adam, Andrew Blake, Natalie Lauritsen, Sally Peltzer, Paul Matson, Nerys Wilkins, David Minkey, Glen Riethmuller, Tim Cusack, Kathryn Steadman, Pippa Michael, Paul Blackwell, Dave Brindal, Michael Walsh, Wayne Parker, Clinton Revell, Giles Glasson, Dean Thomas, Alister Draper, Bill Roy, Marta Monjardin, David Pannell, Stephen Powles, Robert Barrett-Lennard, Martin Bent, Paul Neve, Art Diggle, Patrick Smith, Mechelle Owen, Abul Hashem, Christopher Preston, Tracey Gillam, Rick Llewellyn, Richard Quinlan, Aik Cheam, Siew Lee, Mike Clarke, David Nicholson, Harmoohinder S. Dhammu, Terry Piper, Chad Sayer, Ian Rose, Andrew Blake, Jerome Critch, Gordon R. Cumming, Sam Taylor, John Moore, Rosyln Jettner, Stuart Bee, Lionel Martin, Keith Devenish, Felicity Flugge, Amir Abadi, Duncan Peter, Stuart Mcalpine
Crop Updates 2002 - Weeds, Vanessa Stewart, Peter Newman, Glenn Adam, Andrew Blake, Natalie Lauritsen, Sally Peltzer, Paul Matson, Nerys Wilkins, David Minkey, Glen Riethmuller, Tim Cusack, Kathryn Steadman, Pippa Michael, Paul Blackwell, Dave Brindal, Michael Walsh, Wayne Parker, Clinton Revell, Giles Glasson, Dean Thomas, Alister Draper, Bill Roy, Marta Monjardin, David Pannell, Stephen Powles, Robert Barrett-Lennard, Martin Bent, Paul Neve, Art Diggle, Patrick Smith, Mechelle Owen, Abul Hashem, Christopher Preston, Tracey Gillam, Rick Llewellyn, Richard Quinlan, Aik Cheam, Siew Lee, Mike Clarke, David Nicholson, Harmoohinder S. Dhammu, Terry Piper, Chad Sayer, Ian Rose, Andrew Blake, Jerome Critch, Gordon R. Cumming, Sam Taylor, John Moore, Rosyln Jettner, Stuart Bee, Lionel Martin, Keith Devenish, Felicity Flugge, Amir Abadi, Duncan Peter, Stuart Mcalpine
Crop Updates
This session covers fifty eight papers from different authors:
1. INTRODUCTION Vanessa Stewart, DEPARTMENT OF AGRICULTURE
INTEGRATED WEED MANAGEMENT
IWM system studies / demonstration sites
2. Major outcomes from IWM demonstration sites, Alexandra Douglas Department of Agriculture
3. Integrated weed management: Katanning, Alexandra Douglas Department of Agriculture
4. Integrated weed management: Merredin, Vanessa Stewart Department of Agriculture
5. Long term resistance site: Get ryegrass numbers low and keep them low! Peter Newman and Glen Adams Department of Agriculture
6. Using pastures to manage ryegrass populations, Andrew Blake and Natalie Lauritsen Department of Agriculture
Weed biology and competition
7. …
Ec02-177 Purple Loosestrife, Stevan Z. Knezevic
Ec02-177 Purple Loosestrife, Stevan Z. Knezevic
University of Nebraska-Lincoln Extension: Historical Materials
Purple loosestrife (Lythrum salicaria) is an introduced invasive weed that isover running thousands of acres of wetlands and waterways in the Midwest. Once purple loosestrife invades a wetland, natural habitat is lost and the productivity of native plant and animal communities is severely reduced. These losses in turn interfere with various levels of the ecosystem and area recreational activities such as fishing, boating and hunting, diminishing revenue from tourism and impairing the social and economic well being of local communities. A single control measure cannot provide long-term, sustainable control of this weed. An integrated approach, using a variety …