Life Sciences Commons^™

Impacts Of Diverse Crop Rotations And Integrated Crop-Livestock System On Soil Quality In South Dakota, Atilla Polat

Electronic Theses and Dissertations

Crop diversification can be beneficial in improving soil quality parameters. Diverse crop rotations and integrated crop-livestock systems (ICLS), are two examples of crop diversification used in this study to assess soil quality. The objectives of this study were to: (i) assess the impacts of diverse rotations on soil quality parameters, and (ii) assess the impacts of low and high stocking density on soil quality parameters. Both of the studies were conducted separately and are presented as two different chapters. To accomplish objective (i), a long-term experiment was selected which was established near Brookings, South Dakota, USA at USDA-ARS lab in …

Adoption Of Conservation Practices And Precision Technologies In South Dakota: An Empirical Analysis, Allen P. Deutz

Electronic Theses and Dissertations

Advances in conservation agriculture and precision agriculture technology practices have contributed to the adoption of conservation practices that reduce externalities from agricultural production, but this conversion was usually coupled with economic incentive, whether from increases in fertility and yield, or payments for on farm retirement or restoration practices. This study expands on this theme, evaluating the connection between conservation and the increased use of various precision agriculture technologies. The study uses survey data collected from South Dakota farmers and ranchers, with responses from 28 counties and over 500,000 acres of crop, pasture, and range land to address the following three …

Genotypes And Phenotypes Of Staphylococci On Selected Dairy Farms In Vermont, Robert Mugabi

Graduate College Dissertations and Theses

The genus Staphylococcus contains at least 47 species and 23 subspecies. Bacteria in this genus are ubiquitous; many are commensals on human and animal skin and can be opportunistic pathogens. In dairy cattle, staphylococci are the leading cause of intramammary infections (IMI) and mastitis. Mastitis is the inflammation of the mammary gland, and is one of the leading infectious diseases causing production losses in the dairy industry. Based on the ability to clot blood plasma in vitro, members of the genus can be divided into two groups: coagulase positive staphylococci (CPS) and coagulase negative staphylococci (CNS). In the dairy industry, …

Can Urban And Peri-Urban Agriculture Create Food Sovereign Communities? Case Studies In Cuba And Burlington, Vt, Bennett Lafond

Graduate College Dissertations and Theses

Case studies from Cuba's Urban and Peri-Urban agriculture (UPA) revolution show that urban growing can fuel locally driven production of essential foods with minimal inputs, creating unprecedented opportunities for community food sovereignty. The fact that Cuba produces 60-70% of its vegetable needs on 25% of the land shows that the barriers that UPA faces are more sociopolitical than agronomic. As an agricultural hub with an abundance of rural land within close proximity of the city, the need for UPA in Burlington, VT may not be as readily apparent. When compared to nearby small vegetable growers through the lens of a …

Enhancing The Efficacy And Thermotolerance Of Selected Beauveria Bassiana Isolates For Management Of Sunn Pest, Eurygaster Integriceps, Using Electrofusion Techniques, Agrin Davari

Graduate College Dissertations and Theses

Sunn Pest, Eurygaster integriceps Puton (Heteroptera: Scutelleridae), is a major pest of wheat and barley in West and Central Asia and East Europe. The insect causes a significant reduction in yield and quality of grains. Entomopathogenic fungi, especially Beauveria bassiana are among the most dominant microbial agents that have been used against Sunn Pest. However, there are concerns related to their efficacy and thermotolerance particularly in countries with high temperature regimes.

Nine B. bassiana isolates were tested against Sunn Pest to estimate their virulence and speed of infection under laboratory conditions. The isolates were also exposed to 25, 36, 38 …

Governing Environmental And Economic Flows In Regional Food Systems, Michael Bishop Wironen

Graduate College Dissertations and Theses

Globalization, specialization, and intensification have transformed the global food system, generating material flows and impacts that span multiple scales and levels, presenting novel governance challenges. Many argue for a transition toward a sustainable food system, although the scope and specific goals are fiercely contested. Theory and method is needed to evaluate competing normative claims and build legitimacy.

In this dissertation Vermont serves as a case study to investigate how environmental and economic flows impact regional governance, focusing on efforts to manage agricultural phosphorus to achieve water quality goals. A material flow account is developed to estimate phosphorus flows embedded in …

Measuring The Influence Of Bedding On Soil Nitrogen Losses And Corn Crop Nitrogen Characteristics For Fall Applied Solid Beef Cattle Manure In Eastern South Dakota, Mukesh Mehata

Electronic Theses and Dissertations

Nitrogen (N) is a major component of chlorophyll which plays a key role in the photosynthesis process in crops. The N is one of the highest demanded nutrients by all plants for their growth and reproduction. Manure or inorganic fertilizer is often applied to fulfill the crops’ N demand. However, the applied N sources have the potential of N losses in different forms from the soil volume in many ways such as ammonia (NH₃) volatilization, aerial nitrous oxide (N₂O) loss, nitrate (NO₃ --N) leaching, and runoff and/or erosion. Soil fertility, crop yield, water quality, and …

Land Use Change Sustainability And Carbon Turnover Rate In The Northern Great Plains Soil, Deepak Raj Joshi

Electronic Theses and Dissertations

Sustainable land management involves the management of land, water, biodiversity and other resources that meet human requirements while maintaining ecosystem services. In the northern Great Plains (NGP), the combined impacts of landuse and climate variability have placed many soils at the tipping point of sustainability. The objectives of this study were to: 1) calculate land-use changes from 2006 to 2012 and from 2012 to 2014 in South Dakota and Nebraska; 2) assess if land use changes had impacted on soil sustainability; 3) calculate variation in total carbon budget and turnover due to seasonal climate variability, biomass quality and soil properties; …

"Teamwork Makes The Dream Work": Investigating The Impact Of Social Capital In The Tampa Bay, Fl Community Food System, Monica Petrella

Graduate College Dissertations and Theses

The research in this thesis investigates the relationship between social capital and the ability of a community food system (CFS) to contribute to broad community development goals. Social capital is understood to be an intangible resource that proliferates from strong relationships stocked with trust, reciprocity, and cohesiveness.

This research presents a journey through the literature to provide an overview of community food systems, the anticipated benefits that can result from adequate expansion, and how the concept of "embeddedness" contributes to development between the CFS and the community at large. The concept of social capital is introduced and discussed as previous …

Director's Report Of Research In Kansas 2017, J. E. Minton

Kansas Agricultural Experiment Station Research Reports

The 2017 Director’s Report of Research in Kansas includes a list of journal articles, station publications, and other published manuscripts from scientists in our departments, research-extension centers, and associated programs.

Create Myplate Youth Curriculum, Gaelynn Peterson, Sharmi Crowther, Suzanne Prevedel

All Current Publications

This curriculum is divided into two sections: kindergarten through second grade and third grade through sixth grade. This curriculum was adopted by Utah’s Food $ense Program as part of the Supplemental Nutrition Assistance Program-Education (SNAP-Ed) and was introduced and delivered to all Nutrition Education assistants and Extension agents in Utah.

Como Plantar Un Huerto Para Preparar Salsas, Dan Drost, Celina Wille

All Current Publications

No abstract provided.

Suggested Vegetable Planting Dates For Utah, Shawn Olsen

All Current Publications

No abstract provided.

Smallholder Farmers, Environmental Change And Adaptation In A Human-Dominated Landscape In The Northern Highlands Of Rwanda, Apollinaire William

Antioch University Full-Text Dissertations & Theses

Climate change and crop intensification are key challenges to the livelihoods and wellbeing of the majority of rural smallholder farmers in developing countries, particularly in human-dominated, climate-sensitive landscapes such as the northern highlands of Rwanda where issues of fluvial floods, soil erosion pose serious threats to the livelihoods of smallholder farmers. In this mixed methods study conducted between August and December 2015, I explored smallholder farmers’ perceptions by examining what barriers might hinder the process of agroforestry adoption by smallholder farmers, what socio-economic and physical factors and attitudes influence crop choices, motivations for smallholder farmers’ willingness to plant trees within …

How To Plant A Salsa Garden, Dan Drost, Celina Wille

All Current Publications

This is a guide to plant a summer garden that will produce the necessary ingredients to prepare easy and delicious homemade salsas.

Missed Work Due To Occupational Illness Among Hispanic Horse Workers, Ashley M. Bush, Susan C. Westneat, Steven R. Browning, Jennifer Swanberg

Kentucky Injury Prevention and Research Center Faculty Publications

Occupational illnesses are inadequately reported for agriculture, an industry dominated by a vulnerable Hispanic population and high fatal and nonfatal injury rates. Work-related illnesses can contribute to missed work, caused by a combination of personal and work factors, with costs to the individual, employer, and society. To better understand agricultural occupational illnesses, 225 Hispanic horse workers were interviewed via community-based convenience sampling. Descriptive statistics, bivariate analyses, and log binomial regression modeling were used to: (1) describe the prevalence of missed work due to work-related illnesses among Hispanic horse workers, (2) examine work-related and personal factors associated with missed work, and …

A Multi-Criteria And Dynamic Sustainability Assessment Of Crop Rotation Alternatives, Saturnina Fabian Nisperos

Computational Modeling & Simulation Engineering Theses & Dissertations

With the food security challenge faced by nations globally, agriculture sustainability has been a significant consideration for concerned agencies. Sustainability assessments are significant tools in providing support to stakeholders in their crop production planning. Agricultural sustainability assessment, however, is complex and it involves numerous criteria that can be conflicting. Limitations on crop rotation sustainability assessment methods include: non-dynamic assessment; lack of regard to cover crops and to the individual crop production preferences of farmers; and focused only on single-year and single-crop rotation. We sought to address these limitations by developing a multi-criteria and dynamic sustainability assessment model that considers the …

Caring For Horses In Cold Weather, Karl Hoopes

All Current Publications

This fact sheet gives tips for providing a suitable environment for horses to live outside in the winter and remain comfortable and healthy,

Fabulous Tulips In Springtime, Linden Greenhalgh, Holly Christley

All Current Publications

This fact sheet describes tulips, including their classification, recommended varieties, how to grow them, and problems.

Body Image In Adolescence, Jaqueline Neid-Avila, Brittany Bingeman

All Current Publications

This fact sheet addresses risk factors and protective factors in order to help adolescents navigate this critical time frame.

The Use Of Smart Devices For The Detection Of Aflatoxin In Ground Corn Feeds, Gil Nonato C. Santos, Mary Gillian Santos, Karen Doniza, James Salveo L. Olarve

Angelo King Institute for Economic and Business Studies (AKI)

Aflatoxins are toxic and carcinogenic secondary metabolites produced predominantly by two fungal species: Aspergillus flavus and Aspergillus parasiticus (Gourama, H., & Bullerman, L., 1995). These fungal species are contaminants of food crops as well as animal feeds, and are responsible for aflatoxin contamination of these agricultural products. The toxicity and potency of aflatoxins make them the primary health hazard as well as responsible for losses associated with contaminations of processed foods and feeds (Gourama, H., & Bullerman, L., 1995). Determination of aflatoxins concentration in food crops and animal feeds is thus very important for Food Safety Regulatory Agencies (FRSA) to …

Monitoring The Philippine Economy Year-End Report For 2017, Mitzie Irene P. Conchada, Won Hee Cho

Angelo King Institute for Economic and Business Studies (AKI)

Growing at 6.7% in 2017, the Philippine economy realized robust full-year forecasts despite domestic and international economic challenges. Economic performance: Aggressive government spending on infrastructure projects, the growth of the manufacturing sector, and an uptick in the agriculture sector strengthen the Philippine economy.

The Shellfish Corner: Cap And Trade Systems With Shellfish May Be Good For The Economic Bottom Line, Michael A. Rice

Michael A Rice

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