Agriculture Commons^™

Ultraviolet Light-A: A Novel Agent To Dehydrate Foods, Luis J. Bastarrachea

Funded Research Records

No abstract provided.

Measuring Agricultural Competitiveness: The Case Of U.S. Rice Exports, Estela Barahona

LSU Master's Theses

The United States is known for being one of the world’s largest rice exporters. Rice from the United States is exported to more than 130 nations and territories on all continents. The world rice market accounts for around 50 percent of the U.S. rice yearly sales volume. Even though the U.S. produces less than 2 percent of global rice, exports are significant to its rice industry. Given the various factors that determine trade (e.g., production, distance, income, and trade agreements), theory suggests that the impact of factors on the U.S. agricultural trade will vary according to commodity and country. There …

Evaluation Of Agronomic Performance And Weed Control In Soybean Grown With Different Row Configurations, Planting Dates, And Soil Textures, Franklin Read Kelly

Theses and Dissertations

Planting date, seeding rate, soil texture, and row configuration are important factors in soybean production. Each of these factors can impact overall production and yield of soybean immensely. Growers can have difficulty making decisions about how to best manage their production systems with these factors in mind. Therefore, research was conducted from 2019 to 2021 at the Delta Research and Extension Center in Stoneville, MS, to evaluate the agronomic performance, yield components, and weed control of soybean planted with different planting dates, row configurations, soil textures and/or seeding rates. Common row configurations utilized in Mississippi soybean production were compared to …

Growing Tea In Mississippi, Qianwen Zhang

Theses and Dissertations

Tea is the most popular beverage worldwide, second only to water. The United States is the third largest importer of tea in the world, importing a total of about 260 million pounds tea annually. With increased demand for locally sourced food products, questions are raised regarding whether domestic production of tea is feasible. Compared to major tea producing countries with centuries of growing history, tea production in the U.S. is limited and requires research support in many aspects of tea production. The objectives of this study were to investigate plant growth, leaf morphology, and seasonal chemical compositions in tea leaves …

Determining Residual Control And Systemic Activity Of Commonly Used Insecticides In Soybean And Cotton, Jacob H. Smith

Theses and Dissertations

Chemical control is a critical component of integrated pest management in cotton and soybean production. Residual efficacy of foliar insecticides can be highly variable and difficult to quantify due to several factors. The purpose of this research was to determine residual control and concentrations in flowering structures of commonly used insecticides. This research focused on the concentrations of active ingredient within the plant as well as efficacy over time. Previous research suggested chlorantraniliprole had a long residual and was highly lethal on corn earworm up to 28 days after treatment (DAT) in soybean; however, the results found in cotton were …

Economic Aspects Of U.S. Catfish Farming: Technological Progress, Cost Of Regulations, And Economic Contribution, Shraddha Gurupad Hegde

Theses and Dissertations

This research provides a comprehensive picture of the economic status of the U.S. catfish industry through investigating several critical economic aspects such as technological progress, functional production relationships in intensive systems, regulatory costs, and economic contribution of the industry. The use of primary data is a unique aspect of this work reflecting the economic realities of catfish farms. Primary data collected through extensive in-person farm surveys covered over two-thirds of the catfish production areas in the U.S. The results of the study provided evidence of intensification in the U.S. catfish industry through increased adoption of two relatively new alternative production …

Evaluating Soil Health Changes Following Cover Crop And No-Till Integration Into A Soybean (Glycine Max) Cropping System In The Mississippi Alluvial Valley, Alexandra Gwin Firth

Theses and Dissertations

The transition of natural landscapes to intensive agricultural uses has resulted in severe loss of soil organic carbon (SOC), increased CO₂ emissions, river depletion, and groundwater overdraft. Despite negative documented effects of agricultural land use (i.e., soil erosion, nutrient runoff) on critical natural resources (i.e., water, soil), food production must increase to meet the demands of a rising human population. Given the environmental and agricultural productivity concerns of intensely managed soils, it is critical to implement conservation practices that mitigate the negative effects of crop production and enhance environmental integrity. In the Mississippi Alluvial Valley (MAV) region of Mississippi, USA, …

The Guatemala Rabbit Project: A Household Agricultural Intervention Program Evaluation Using The Re-Aim Framework, Jessica Martin Graves

Theses and Dissertations

Amongst the breathtaking and mountainous landscapes of the Western Highlands is a highly indigenous Mayan population stricken with challenges of food insecurity and extreme poverty. Despite efforts by governmental and non-governmental organizations alike to combat these challenges, the results of chronic malnutrition have led to some of the highest child stunting rates in all of Guatemala, particularly in the department of Totonicapán, where this study took place. To date, information is limited regarding agricultural programs that utilize the rabbit as a model to reduce food insecurity in Guatemala. Thus, a novel agricultural education program, Guatemala Rabbit Project (GRP), was developed …

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; …

Evaluating Cover Crops To Determine The Best Management Practice For The Suppression Of Tall Waterhemp And Italian Ryegrass, Samuel R. Reeves

Theses and Dissertations

To combat herbicide resistance among weeds, non-herbicide methods of control, such as cover crops, are becoming widely adapted. Experiments were conducted to determine how to effectively establish and manage cover crops in order to suppress tall waterhemp and Italian ryegrass and to assess their overall impact on soybean growth and yield. Various cover crop establishment methods were evaluated, and it was determined that interseeding at the R7 growth stage of soybean was the least effective method for proper cover crop establishment. Biomass data demonstrated that interseeding created the least amountof cover crop biomass, with no differences found among the other …

X-Ray And Mri Theory For Mineral-Rich Fruits Affected By Heat Waves During Climate Change, Daler Djuraev, Somdat Kissoon, Robert O'Brien, Nino Jvarishvil

Publications and Research

Conventional Nutrition facts data relays the amounts of different minerals in apples. This information from such analysis may not connect these minerals with their natural biochemical or functional state for health or disease. These minerals may also be part of different particle sizes that affects X-ray transmission, absorption and scatter. The minerals may also redistribute within the tissue over time with or without heat shock. Current Medical Imaging procedures (Xray and MRI) do not localize such minerals. Our work offers a way to increase detection sensitivity of transition metals in various apple varieties non-invasively. This can constitute a step in …

Quantifying The Effects Of Abiotic Stress On Early Season Growth, Development, And Physiological Characteristics In Corn, Charles Hunt Walne

Theses and Dissertations

Corn is one of American agriculture's greatest success stories, where we have witnessed incredible increases in yield potential over the last half-century. However, abiotic stress is still the primary limiting factor preventing plants from reaching their true yield potential. In addition, agriculture is not exempt from the deleterious effects of changing weather patterns and the altered climate our world will face as time progresses. Thus, increasing our understanding of how crops interact with their environment both above and below the soil will be crucial to increasing production on a global scale while maximizing profitability at a local level. Five studies …

Perceptions Of Middle School Students On Gardening, Julie B. White

Theses and Dissertations

The purpose of this study was to describe the perceptions middle school students had about agriculture and gardening as part of the GrOW (Gardening and Overall Wellness) Program. This included multiple constructs, including students’ gardening efficacy, perceptions of those who had already completed the GrOW Program, perceptions of those who had not completed the GrOW Program, and students’ future interests in gardening. The population for this study was sixth-grade students at the Partnership Middle School in Starkville, Mississippi. A quantitative instrument was used to assess the perceptions of the students (n = 222).

Overall, students had positive perceptions about the …

North Central Extension Risk Management Education Center Helps Producers Manage Risks, Christine Lockert, Bradley D. Lubben, Sheila Aikanathan Johnson

Cornhusker Economics

Farmers and ranchers face many risks and challenges in production agriculture every day. Changing market fundamentals, farm policy reforms, and crop insurance program developments defined the risk environment that led to the authorization of agricultural risk management education as part of the Agricultural Risk Protection Act of 2000. The educational efforts that have followed have been designed to help producers manage the full range of production, marketing, financial, legal, and human risks that are all part of agriculture. In the more than two decades since, the risks facing producers have continued to grow. Producers managed through both the opportunities of …

Oxen: Status, Uses And Practices In The U.S.A., Encouraging A Historic Tradition To Thrive, Andrew B. Conroy

Faculty Publications

Oxen in the United States of America have played an important role throughout its history. Unlike other countries,oxen were never completely given up for horses, mules, or tractors. Instead, the culture of keeping oxen has been maintained by a small group of teamsters in the North- eastern states collectively called New England. Their continued presence has been largely due to agricultural fairs and exhibitions where they have been used in competition for the last 200 years. Ox teamsters were sur- veyed in 2021via social media using Qualtrics. The 423 ox teamsters responding owned 1791 oxen in 39 states, with the …

Development Of A Data-Assimilation System To Forecast Agricultural Systems: A Case Study Of Constraining Soil Water And Soil Nitrogen Dynamics In The Apsim Model, Marissa S. Kivi, Bethany Blakely, Michael Masters, Carl J. Bernacchi, Fernando E. Miguez, Hamze Dokoohaki

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

As we face today's large-scale agricultural issues, the need for robust methods of agricultural forecasting has never been clearer. Yet, the accuracy and precision of our forecasts remains limited by current tools and methods. To overcome the limitations of process-based models and observed data, we iteratively designed and tested a generalizable and robust data-assimilation system that systematically constrains state variables in the APSIM model to improve forecast accuracy and precision. Our final novel system utilizes the Ensemble Kalman Filter to constrain model states and update model parameters at observed time steps and incorporates an algorithm that improves system performance through …

Economic Implications Of The Mexican Fruit Fly Infestation In Texas, Samuel D. Zapata

Journal of Extension

The Texas citrus industry is threatened by the presence of Mexican fruit fly. The objective of this study was to estimate the economic losses caused by this invasive pest. Economic impact is estimated in terms of loss in revenue and increase in operating costs. Under current quarantined areas and pest management strategies, the Texas citrus industry could experience an annual economic loss of $5.79 million. The analysis was extended to evaluate the economic impact associated with different quarantined area scenarios. This article can be used to increase awareness and adapted to estimate the economic impact of emerging invasive pest outbreaks.

Market Pressure Based On International Food Standards In Export-Scale Urban Farming: Political Ecology Perspective, Kinanti Indah Safitri, Oekan Soekotjo Abdoellah, Budhi Gunawan, Yusep Suparman, Parikesit Parikesit

The Qualitative Report

Urban farming has been transformed into urban agricultural activities oriented towards optimizing economic benefits through export market involvement. However, the expansion of the market has consequences for farmers. The involvement of urban farmers in export trade causes market pressures that affect agricultural production practices. This research used qualitative research methods. There were 27 informants in this study. Researchers collected data to determine market pressures faced by export-scale urban farmers in Bandung Metropolitan. Data collection techniques used in-depth interviews, observation, and documentation. The results showed that the market had put pressure on export-scale urban farmers in Bandung Metropolitan to meet international …

Effect Of Mycorrhizae Inoculation On The Growth And Success Of Three Taxodium Distichum Hybrids In Saline - Impacted Coastal Soils, Elif Ilhan

Electronic Theses and Dissertations

In 2008, Galveston Island was severely impacted by Hurricane Ike, resulting in high salt deposition in the soil and groundwater. This caused a loss of many native plant species. A study was initiated to determine effective ways to promote the growth conditions of three bald cypress genotypes (Taxodium distichum var distichum and Taxodium distichum var mexicanum crosses) in salt-affected soils. The treatments applied were mycorrhizae inoculation, fertilizer application, and a combination of mycorrhizae inoculation and fertilizer application. A total of sixty (60) trees planted in plots of three rows and divided into five randomized replication blocks of four treatments …