Life Sciences Commons^™

Nitrogen Transfer From Cover Crops To The Subsequent Grain Crop And The Influence Of Variability In Winter Conditions, Spencer Heuchan

Electronic Thesis and Dissertation Repository

Cover crops, which are used to provide ground cover after the harvest of the grain crop, can potentially improve the sustainability of agroecosystems by reducing nutrient losses. However, few data are available to document the extent to which cover crops improve both the retention of soil nitrogen (N) and the transfer of this N to the grain crop. The efficiency of this N transfer may be further influenced by variation in winter soil temperature; for example, reduced snow cover can increase the frequency and intensity of soil freezing, which can affect the survival of cover crops and the timing of …

An Evaluation On The Effects Of Additions And Deletions Of Specific Nutrient Management Strategies On Corn Yield At Different Plant Densities, James D. Dew

Theses and Dissertations

Improved management strategies are needed to increase yield production and quality. The study aimed to determine suitable cultural practices for improved corn production. Experiments were set up at Verona and Stoneville, Mississippi, from 2020 to 2022. Treatments included row configurations (single and twin-row), plant populations (79,000 and 99,000 seeds ha-1), and six combinations of nutrients with or without fungicide. The nutrients evaluated were two nitrogen rates 235 and 314 kg N ha-1, phosphorus 45 kg P ha-1, potassium 112 kg K ha-1, sulfur 22 kg S ha-1, and zinc 11 kg Zn ha-1, and fungicide at 272 ml ha-1. In …

Demonstration Farm Provides Educational Opportunity For Ipm, Nick Volesky, Mair Murray

Outcomes and Impact Quarterly

The mission of USU Extension’s Integrated Pest Management (IPM) program is to increase the use of sustainable pest management practices within urban and rural landscapes to provide economic, human, and environmental health in Utah. In the spring of 2022, the IPM program established a vegetable farm to test and demonstrate IPM practices. The farm served as an experiential learning classroom for almost 50 farmers and home gardeners.

American Horse Power During The Great War, Hanna K. Lipsey

USF Tampa Graduate Theses and Dissertations

This dissertation charts the significant, if understudied, history of American horses during the era of World War I, from roughly 1914 to 1919. Its chapters trace how the US Army acquired, used, cared for, and ultimately demobilized horses over the course of that conflict. Beginning with their acquisition, via either an Army Horse Breeding Program or a complicated buying process, horses faced a complex introduction into military service. Life for these animals did not get any easier once they reached the European front. Although the US military was beginning to replace horses with motor trucks and tractors, horses remained central …

S7e7: How Can Business Savvy Help Maine Farmers Succeed?, Ron Lisnet, Erin Percival Carter

The Maine Question

Like opening any business, starting and operating a farm can be challenging without any in-depth entrepreneurial knowledge or skills. To help strengthen support for farmers’ business skills, University of Maine faculty members Erin Percival Carter and Stephanie Welcomer established the Business, Agriculture, and Rural Development (BARD) technical assistance training program in the Maine Business School.

The BARD program trains UMaine students to serve as consultants for farmers and operators of other small-scale and sustainable agricultural businesses. These students can assist agribusinesses with various aspects of commerce, such as data-management, price-setting, marketing, financial and strategic forecasting, market segmentation, product development, market …

Economic Contribution Of Agriculture And Food To Arkansas’ Gross Domestic Product 1997-2021, Leah English, Jennie Popp

Research Reports and Research Bulletins

Agricultural production, processing, and retail industries are major contributors to Arkansas’ GDP. Agriculture contributes to the state economy through direct agricultural production, value-added processing, and agricultural retail activities. The Agriculture and Food Sector, which is comprised of agricultural production, processing, and retail industries, promotes economic strength through various interactions with other industries. The use of non-agricultural goods and services as inputs into the agricultural sector promotes diversified growth in Arkansas’ economy and thus plays a vital role in maintaining economic stability throughout the state. This report 1) compares the relative size of the Agriculture and Food Sector in Arkansas with …

Financial Benchmarks For Diversified, Direct-Market Produce Farms, Michael Sciabarrasi

UNH Cooperative Extension

No abstract provided.

Protecting Cattle Feedyard Workers In The Central States Region: Exploring State, Regional, And National Data On Fatal And Nonfatal Injuries In Agriculture And The Beef Production Sector, Athena K. Ramos, Suraj Adhikari, Risto Rautiainen, Aaron Yoder

The Journal of Extension

Working in agriculture can be dangerous. Despite ongoing efforts of Extension, animal production worker safety has not been adequately addressed. We present state, regional, and national counts and rates on fatal and nonfatal injuries in agriculture and animal production using publicly available data from the Bureau of Labor Statistics. We found that animal production had a high number of fatal injuries and a higher rate of nonfatal injuries than the average within agriculture. More needs to be done to protect livestock workers from injury. Extension professionals can play a key role in increasing safety knowledge and changing behaviors.

A Comparison Of The Effectiveness Of Cocos Nucifera (Coconut) Water As A Rooting Hormone In A Hydroponic And Conventional Set-Up In Growing Ocimum Basilicum (Basil), Trisha Ysabel A. Reodica, Luis Raphael L. Reyes, Fernel Anne J. Cadiz, Jessica Paulyn A. Villa, Pio Jeremiah G. Tagra, Elizabeth Justinne I. Carag, Elisha Jaeriane A. Almeda, Jericho R. Castañeda, Hans Franco A. Amar, Jose Mari M. Calamlam, Gerald B. Gamboa

Sinaya: A Philippine Journal for Senior High School Teachers and Students

Food shortage is still a problem in the Philippines since millions of people may be classified as undernourished. Efforts to augment the insufficiency include developing an efficient planting method as a source of food. This experimental study tested the effectiveness of coconut water as a rooting hormone on hydroponically and conventionally grown basil plants by measuring the height, fresh weight, leaf length, and root length for three weeks, which also served as the dependent variables. Consequently, two (2) hydroponic set-ups and two (2) conventional set-ups utilize a randomized block design. The set-ups containing coconut water served as the independent variables, …

Why New Zealand’S Indigenous Reconciliation Process Has Failed To Empower Māori Fishers: Distributional, Procedural, And Recognition-Based Injustices, Hekia Bodwitch, Andrew M. Song, Owen Temby, John Reid, Megan Bailey, Gordon M. Hickey

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

How is it that the New Zealand government’s process for re-establishing Indigenous fishing rights has failed to deliver thriving Māori fisheries? This paper examines why, at Te Waihora, a coastal lake, and site of one of the nation’s longest running and best-funded state-Māori co-governance agreements, Māori fishers have been unable to use their rights to support their fishery. As of 2018, the lake’s culturally and ecologically significant eel population was no longer commercially viable, a decline fishers have attributed to rampant dairy industry expansion upstream. Drawing on environmental justice literatures, we deploy a multi-dimensional framework to identify factors shaping possibilities …

My Summer Working With Two-Spotted Spider Mites, Renée A. Smith

Undergraduate Student Research Internships Conference

Two-spotted spider mites are a polyphagous pest, capable of eating a magnitude of food crops which causes a large problem for Canadian agriculture. Their ability to consume various crops stems from their ability to adapt to various chemical defence mechanisms. This ability allows them to acquire resistance to many commonly used pesticides. This has resulted in large infections in Canadian farms with few options to prevent the pests from affecting crop yields. Take a look at my project if you'd like to see how the Grbic lab is working to combat this issue using genetic engineering techniques!

The Effect Of Soymilk Addition With Different Concentrations On Some Properties Of Cow Milk Yogurt, Nawal H. Sebo, Ashna T. Abdulqadr, Rahela S. Qader

Polytechnic Journal

The present study was made with an attempt to produce yogurt by partial addition of different levels of soymilk to cow milk. Control was prepared with 100% cow milk and other samples prepared with cow milk and soymilk in the ratio of 95:5, 90:10, 85:15, 80:20, and 75:25 respectively. The control and different treatments of milk blends were analyzed for total solids and pH. The results found that the addition of soymilk leads to an increase of pH and total solids from 6.7, 11.94 % to 7.1 and 12.54 % for control and milk samples containing 25:75 levels of soymilk …

The Effect Of Soymilk Addition With Different Concentrations On Some Properties Of Cow Milk Yogurt, Nawal H. Sebo, Ashna T. Abdulqadr, Rahela S. Qader

Polytechnic Journal

The present study was made with an attempt to produce yogurt by partial addition of different levels of soymilk to cow milk. Control was prepared with 100% cow milk and other samples prepared with cow milk and soymilk in the ratio of 95:5, 90:10, 85:15, 80:20, and 75:25 respectively. The control and different treatments of milk blends were analyzed for total solids and pH. The results found that the addition of soymilk leads to an increase of pH and total solids from 6.7, 11.94 % to 7.1 and 12.54 % for control and milk samples containing 25:75 levels of soymilk …

Assessing Virtual Free-Choice Agricultural Learning: A Mixed Methods Approach, Richard John Kennedy

Theses and Dissertations

Since the mid-19th century, agricultural museums and living history sites, first in Scandinavia and then in the United States and Canada, have provided historical, cultural, and, sometimes, scientific information about farming to visitors. Many of these visitors have been school children on field trips. Assessment of this learning, however, has been scant, particularly within the free-choice style inherent in these types of educational venues. At the same time, assessment of free-choice learning, often analyzed through the Contextual Model of Learning (Falk & Dierking 2000), has taken place at educational sites like zoos, natural history museums, and science centers. This study, …

Assessment Of Historical Climate Variability In Maine With Implications For Future Agricultural Productivity And Adaptation, Carly Frank

Electronic Theses and Dissertations

Climate change is a wicked problem with global impacts, one of which being the sustainability of the existing global food system. As temperatures and variability in precipitation are projected to increase, the challenges to agriculture are expected to intensify. This thesis examines the Maine historical climate record over the growing season, in combination with future projections, to assess how conditions have changed and will change with agricultural implications. In this analysis, relevant climatic variables are analyzed, and agriculture-significant measures are derived for Maine’s three climate divisions using four decades of daily and monthly gridded datasets. In addition, this thesis explores …

How The “Blueprint” For Agriculture In Adventist Education Can Be Relevant In The 21st Century, Katherine Koudele

Faculty Publications

No abstract provided.

The Effect Of Plant Elicitor Peptide On Nematode Infected Soybean, Siyang Liu

Graduate Theses and Dissertations

Soybean (Glycine max), an important economic crop native to East Asia, is grown worldwide for its edible beans. Soybean plants are vulnerable to a wide range of diseases, and nematodes are among the worst pests of soybean. The southern root-knot nematode (Meloidogyne incognita) and soybean cyst nematode (Heterodera glycines) are both notable nematode pests of soybean, with the soybean cyst nematode causing more than 30% of total yield loss in the US. Numerous attempts have been made to control soybean nematodes over the past several decades, and genetic engineering technology has received a lot of attention in recent years. Plant …

Missouri Alot - Dc Experience, Amy Bax

Title III Professional Development Reports

I want to thank Lincoln University for sponsoring this trip. I had access to many high-level people in DC that wanted to hear my story of agriculture. These are people that have the power to create legislative practices and policies that are favorable to the agricultural industry. I had the opportunity to advocate for Lincoln and Lincoln University students.

Prediction Of Cultivation Areas For The Commercial And An Early Flowering Wild Accession Of Salvia Hispanica L. In The United States, Mohammad Hassani, Thomas Piechota, Hagop S. Atamian

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Salvia hispanica L., commonly known as chia, is a plant-based alternative to seafood and is rich in heart-healthy omega-3 fatty acid, protein, fiber, and antioxidants. In the Northern Hemisphere, chia flowering is triggered by the fall equinox (12-h light and dark, early October) and the seeds mature after approximately three months. Chia is sensitive to frost and end of season moisture which limits its cultivation to small areas in regions with temperate climate. The U.S. chia import has increased considerably over the years; however, chia is not widely cultivated in the United States. This study used the historical U.S. temperature …

Helping Utah Landowners Reduce Pesticide Use Through A Statewide Ipm Program, Nick Volesky, Mair Murray

Outcomes and Impact Quarterly

The Utah Integrated Pest Management (IPM) program provides outreach and education to Utahns to reduce pesticide use and ultimately protect human and environmental health. In 2022, the IPM program responded to stakeholders’ needs by partnering with county Extension offices to deliver eight (8) in-person workshops across the state. The workshops connected Extension specialists and county faculty with managers of home landscapes and farms. The objective of the workshops was to provide participants with IPM skills to identify, monitor, and manage pest problems in preparation for the upcoming growing season.

High Tunnel Construction Cost Calculation Workbook, Shannon Rauter, Melanie Stock, Brent Black, Dan Drost

All Current Publications

The cost of building a high tunnel fluctuates over time with supply prices. This Excel workbook accompanies the USU Extension fact sheet, "Constructing a Low-cost High Tunnel" by Black, Drost, Rowley, and Heflebower (2011) and allows users to input local supply costs. The workbook then calculates the cost to build a USU low-cost high tunnel with several design options according to high tunnel length and door structure. It also provides an example calculation based on April 2022 pricing for reference.

Accessibility And Inclusion As An Approach To Enhancing Local Extension Programs, S. Dee Jepsen, Laura Akgerman, Karen Funkenbusch, Jessie Calero, Heather Kelejian

Journal of Human Sciences and Extension

Providing accessible learning opportunities and inclusive programs are critical to Extension’s mission. Creating inclusive environments is more than consideration for individuals’ personal identity. Using principles of Inclusion, Diversity, Equity, and Accessibility (IDEA) is an approach to intentionally build community and create new opportunities for education and growth. The Americans with Disabilities Act is a federal law requiring businesses and events to be accessible to individuals with disabilities. The Rehabilitation Act of 1973 states, “no qualified individual with a disability may be discriminated against in any program or activity receiving federal financial assistance.” The legislation applies to Extension buildings, programs, and …

Is Agriculture Being Implemented In Private School Classrooms? The Impact Of Teacher Willingness And Availability Of Resources., Casey Moss

Theses and Dissertations

Agricultural literacy has been a topic of concern as most of the population have little to no understanding of agriculture, and the impact it has on society. Agricultural literacy can be defined as “having knowledge and understanding of agriculturally related scientific and technologically based concepts and processes required for personal decision making” (Meischen & Trexler, 2003, p.44). Numerous studies have been conducted to determine the significance of agricultural literacy beginning with elementary aged children and continuing through high school. The majority of studies conducted focus on public school students and teachers. This has led to a gap in the knowledge …

Plugging Into A New Age: The Impact Of Social Media Use On Undergraduate Students’ Perceptions Of Production Agriculture And Consumer Decisions, Shannon K. Allen

Theses and Dissertations

Today, 84% of young adults between the ages of 18-29 use at least one social media site (Pew Research Center, 2020) and are in the stages of emerging adulthood where they are making independent decisions for the first time (Arnett, 2000). As society becomes more technologically advanced, we become further removed from agriculture (Powell & Agnew, 2011; Dale et al., 2017). Thus, resulting in a separation between consumer and producer (Wilson & Lusk, 2020; Holt & Cartmell, 2013). This leaves the opportunity for society to turn to social media for agriculture information leading to negative perceptions of agriculture (Eyck, 2000; …

Identifying Key Stream Restoration Variables In An Agriculturally Impaired Chesapeake Bay Watershed, Julia Portmann

Masters Theses, 2020-current

The Chesapeake Bay watershed spans several states, supports diverse ecosystems, and is crucial to local economies. However, agricultural practices in this region impair water quality. The Smith Creek watershed, within the Shenandoah Valley, was designated a showcase watershed in 2010 by the United States Department of Agriculture to demonstrate the efficacy of implementing restoration projects. We sampled fifteen farms ranging from unrestored to thirty-six years since restoration. At each site, we conducted a kick-net survey for macroinvertebrates, measured canopy cover, algal density, substrate size, and bank height and angle. We identified macroinvertebrates to family and calculated the Chesapeake Basin-wide Index …

Towards Environmental Sustainability Of Nanotechnology Through Improved Evaluations Of Impact And Risk To Aquatic Species: Cross-Species Comparisons From The Laboratory And Environmentally Realistic Exposure Scenarios In The Field, Becky J. Curtis

Theses and Dissertations

Engineered nanomaterials (ENMs) are utilized in a wide variety of applications and products, including everything from toothpaste and personal care products to industries such as aerospace, defense, medicine, electronics, and agriculture. Depending on the application, release of ENMs to the environment may occur through both unintentional and deliberate routes. High surface-area-to-volume ratios make ENMs more volatile than bulk counterparts, and their small size allows translocation within biological systems that would not be possible with larger materials. These and other characteristics make ENM-biological system interactions unpredictable, creating uncertainty about their potential risks to environmental health. The purpose of this research is …

Assessing The Impact Of Parental Involvement On The Scaling Of Agricultural Technologies From School Garden To Home Farm Through Experiential Learning, Gracie Pekarcik

Masters Theses

Cambodia is a predominantly rural nation with a heavy dependence on agriculture, particularly smallholder rice farming systems. While several sustainable agricultural technologies have been successfully piloted on research stations or with small numbers of early adopters, questions remain on how to extend these technologies to large numbers of resource-poor smallholders. The Scaling Suitable Sustainable Technologies Project (S3-Cambodia) seeks to examine pathways for scaling sustainable intensification (SI) technologies to smallholder farmers. One of the identified pathways to scaling SI is through the education system. Cambodian youth serve as an entry point to extend target technologies to farm families through experiential learning …

Are Some Analysts Superior At Forecasting World Grain Supplies?, Emmie M. Noyes

Agricultural Economics and Agribusiness Undergraduate Honors Theses

Whether agriculture is how you make your living or simply a means of putting food on your table, the prices of agricultural commodities and products affect us all. When buying and selling agricultural commodities, both farmers and firms use futures markets. Futures markets help minimize price risk, which is important to both sides of the transaction.

Recently, private analysis firms have started to forecast the information contained in the USDA’s WASDE report. This is relevant because future prices react to new information contained in WASDE reports. These firms will release their information a few days before the WASDE comes out …

Teaching Programmable Microcontrollers To Novice Users In A College Of Agriculture: Effects On Attitude, Self-Efficacy, And Knowledge, Grant T. Hood

Graduate Theses and Dissertations

This thesis consists of two articles that examined an instructional treatment based on the use of Arduino UNO R3 programmable microcontrollers in a fundamentals of agriculture systems technology course at the University of Arkansas. The first article examined students’ breadboarding and programming self-efficacy and knowledge of Arduino. The treatment consisted of a three-class-period instructional treatment, starting with a pretest before instruction to measure students’ baseline interest, knowledge, and self-efficacy of breadboarding and programming Arduino. This was followed with a short 30-minute instructional video explaining basic Arduino programming and breadboarding. Next a hands-on laboratory activity requiring students to breadboard and program …

The Exploration Of Undergraduate Attitudes And Knowledge About International Agricultural Issues And Us Agricultural Policy, Caitlin Bletscher, Megan Gould, Shuyang Qu

Journal of International Agricultural and Extension Education

In today’s globalized world, educators and employers generally agree on the necessity for undergraduate agricultural [ag] students to develop a sound understanding of global ag issues and policy. Because of this, many U.S. universities have promoted internationalizing curriculum and increased international study abroad experiences. However, few studies have examined the impact of international experiences on students’ knowledge and attitudes about international ag issues and policies. This study bridges this gap by identifying the relationship between student knowledge and attitude toward international ag issues and U.S. ag policy, and how international experience and demographic variables play a role in that relationship. …