Agriculture Commons^™

Soil Nutrient Sufficiency Versus Plant Nutrient Status In Compost-Amended Soils: Plant Tissue Analysis As A Diagnostic Tool, Chandralekha Joga Miss

Murray State Theses and Dissertations

This study evaluated whether Mehlich III soil nutrient sufficiency ratings reliably predict plant nutrient status and chlorophyll response across contrasting compost application histories. A greenhouse pot experiment was conducted with Chijimisai (Brassica rapa) planted in three treatment soils that had no compost (T1), moderate compost history (T2), and long-term hog manure compost application (T3). Plant performance was assessed through weekly shoot length and chlorophyll content (SPAD) measurements, leaf number at maturity, and leaf tissue nutrient analysis conducted at harvest. Soil test results indicated adequate to high nutrient levels across all three treatments. Leaf tissue analysis, however, revealed substantial …

Hydroponics In The Classroom: Cultivating Plants, Captivating Young People, Stacy A. Adams, Christian Stephenson, Theresa James, Kim Todd

Department of Agronomy and Horticulture: Faculty Publications

Few students take the initiative to pursue coursework beyond that required for progression to graduation. Limited are opportunities that connect educational content to industry application, potentially inspiring young people towards impactful careers. The United States government has emphasized the importance of STEM education to ensure national security and to maintain economic competitiveness globally. STEM education is not a defined discipline but an approach for building knowledge through application and engagement. Developing and managing a hydroponics prototype provides numerous opportunities for embedding STEM content into a fun and interactive project. This poster provides inspiration for constructing a simple deep water culture …

Development Of The Core Lit Apparatus For Seaweed Hatcheries (Clash) Bioreactor Using A Germplasm Approach, Phillip O. Tahimic

Cal Poly Humboldt theses and projects

In comparison to the Asian aquaculture industry, the United States has minimal seaweed production. There are several drivers of the limited industry in the US, such as regulatory constraints and limited market demand, but the ability to scale is a considerable barrier to commercialization. One possible solution is the development of land-based systems that integrate bioreactors, which utilize fewer resources and do not wholly rely on an oceanic flow-through system. This study assessed the application of a modular bioreactor, known as Core Lit Apparatus for Seaweed Hatcheries (CLASH), as a nursery system and open-source project designed to expand land-based seaweed …

Management And Nutrition Factors That Impact Broiler Breeder Fertility, Jeanna Wilson

Proceedings of the Arkansas Nutrition Conference

This article addresses the recent decline in broiler breeder hatchability.  Both managerial and nutritional solutions for mitigating the decline in hatchability are discussed.

Rethinking Macro And Micro Mineral Formulation In Modern Broilers, K. M. Venter, A. Herbst, P. W. Plumstead

Proceedings of the Arkansas Nutrition Conference

These proceedings discuss factors that affects calcium, phosphorus, zinc, and copper availability in poultry diets. Furthermore, the role of phytate and phytase on availability of the nutrients and their dietary requirements is investigated.

Engineering Broiler Efficiency Through Modern Infrastructure Design And Precision Control, Chris Travers

Proceedings of the Arkansas Nutrition Conference

These proceedings describe a modern, innovative broiler site in South Africa constructed with the following objectives in mind: Scale, Energy Efficiency, Precision Environmental Control with AI Integration, and Off-Grid Power Autonomy.

Renal And Gastrointestinal Disturbances That Cause Wet Manure And Litter In Poultry: Non-Nutritional And Nutritional Interventions To Prevent And Control The Issues, Fausto Solís

Proceedings of the Arkansas Nutrition Conference

These proceedings represent a broad overview of wet litter causes and management.  Both the impact on bird health and fertilizer management are discussed.  In addition to nutritional factors that impact litter quality, these proceedings address poultry health from disease implications of wet litter.

Precision Broiler Nutrition: Bioeconomic Optimization Of Broiler Feeds With A Focus On Balanced Protein (Bp) And Metabolizable Energy (Me), Shivaram K. Rao, Rocky Latham, Phillip Smith, Hunter Walters, Malea Frank, Alejandro Corzo

Proceedings of the Arkansas Nutrition Conference

Key broiler performance indicators in live performance and yields are impacted by precision nutrition, and more specifically balanced protein and energy.  These proceedings deal with bioeconomic optimization of broiler performance using profit scenarios like income over feed costs.

Soybean Meal Quality: Key Quality Control Parameters And Current Recommended Thresholds For In Vitro Assessments, Benjamin Parsons

Proceedings of the Arkansas Nutrition Conference

These proceedings review the anti-nutritional factors of soybean meal and its resultant quality.  Numerous in vitro assays are discussed herein.  Recommendations from data on the most robust assays to assess both under and overprocessing of soybean meal are discussed.

Does Phytase Change How We Feed Breeders?, Wenting Li

Proceedings of the Arkansas Nutrition Conference

Dietary evaluation of the use of exogenous phytase has received considerable attention in broilers, but not broiler breeders.  Moreover, the limited studies that have assessed phytase in broiler breeders are dated, which makes interpretation problematic because dated phytase enzymes are not as efficacious as current phytase enzymes.  The article addressed practical applications for dietary phytase in broiler breeder diets.

A Practical Approach To Sustainability In The Poultry Industry, Franco Mussini

Proceedings of the Arkansas Nutrition Conference

This work highlights poultry industry advances in production, nutrition, and processing with less environmental impact. Specific sections address exogenous enzyme application on mineral nutrition and protein and feed-grade amino acid nutrition.  Finally, conclusions on precision feeding opportunities in the broiler industry and meat production comparison with other animal production industries are discussed.

Current State Of U.S. Soybean Industry, Gordon Denny

Proceedings of the Arkansas Nutrition Conference

This presentation highlights the current state of U.S. soybean production and the subsequent industrial manufacturing of oil and soybean meal.  The former has been quoted as being in “the midst of the most dramatic and significant changes in history.”  Reasons for the former are discussed.

An Analysis Of Systemic And Contact Herbicide Usage Trends In Illinois Corn Production Systems, Paige E. Mckittrick

Murray State Theses and Dissertations

Herbicide use is central to weed management in Illinois corn production; however, long-term changes in the balance between systemic and contact herbicides have not been well quantified at the statewide scale. This study analyzes herbicide trends in Illinois corn from 1982 to 2016 using secondary data from the USDA Agricultural Chemical Use Survey, paired with climate, regulatory, and herbicide resistance information. Herbicide active ingredients were classified into systemic and contact functional categories and grouped according to Weed Science Society of America (WSSA) mode-of-action (MOA) codes. For each survey year, total herbicide load (lb a.i./acre), functional proportions, MOA-specific contributions, and a …

Influences On Student College-Major Decision And Satisfaction Rate Among Students In The School Of Agriculture, Danielle Shafer

Murray State Theses and Dissertations

The purpose of this study was to determine the factors that influence students to choose agriculture majors and agriculture careers and measure the level of satisfaction with their major based on these influences. There are many factors that influence students to choose a major in college and college-major satisfaction. These influences and satisfaction with major may have an impact on a student’s decision to choose a college career path. Some of the influences mentioned in studies are family, friends, educators, extension programs, clubs, financial, and recruitment efforts. The degree to which each of these influence students may depend on the …

Variable Temperature And Moisture Requirements For Germination Within Populations Of Kochia (Bassia Scoparia) In Field Margins, Brian Schutte, Rebecca Creamer

Entomology, Plant Pathology, & Weed Science: Datasets

No abstract provided.

High Potential, Uneven Uptake: Off-Grid Renewables In Agriculture Across The Global South, Muhamad Setyawan Bahari, Destia Mardhotillah

ASEAN Journal on Science and Technology for Development

Reliable energy access is widely recognized as essential for agricultural development, yet adoption of off-grid renewable energy technologies (RETs) in the Global South remains uneven despite their high potential. While RETs are increasingly promoted as solutions to food insecurity and energy poverty, evidence on what enables or constrains their uptake across agricultural contexts remains fragmented. This study systematically reviews 18 peer-reviewed articles published between 2013 and 2025 using the PRISMA framework and synthesizes findings through a PESTEL lens. The literature has expanded in recent years, reflecting growing policy attention to the energy–agriculture nexus, but remains concentrated in Asia and heavily …

Efficacy And Safety Of Semaglutide In Adults Without Diabetes Who Are Overweight Or Obese, Rebecca Petty

The PA Department Journal of Medical Science

INTRODUCTION:

Obesity is associated with an increased risk of cardiovascular and metabolic disorders and contributes to the leading cause of death in the US — heart disease. Glucagon-like peptide-1 (GLP-1) receptor agonists (RAs) have recently emerged as a treatment option for obesity. The purpose of this clinical review is to evaluate the efficacy and safety of semaglutide in adults without diabetes who are overweight or obese.

METHODS:

PubMed was searched using a precise search strategy and the key terms “semaglutide,” “weight loss,” and “without diabetes.” Results were filtered and narrowed using specific inclusion and exclusion criteria. Four high-quality studies were …

Data And Analysis Code For Agricultural Risk Perceptions And Willingness To Change Farming Practices In The Rio Grande Valley Of Texas, Owen Temby, Dongkyu Kim, Anthony R. Lima

Datasets

This dataset supports research on farmers’ perceptions of agricultural risk and their stated willingness to use water-management and conservation practices in the Rio Grande Valley of South Texas. Data were collected in 2024–2025 from farm owners in Cameron, Hidalgo, Starr, and Willacy counties. Mailed invitations directed recipients to a Qualtrics questionnaire, followed by telephone outreach through the UTRGV Center for Survey Research and Policy Analysis. Participants could respond online or answer the questionnaire orally during a telephone interview. The released dataset contains 93 records with recorded consent, including partial responses; 72 records support the core regression analyses. Survey measures cover …

United States Mainstream Meat Market Entry: An Analysis On Speciality Goat Meat Products, Madison Raye Schmitz

Graduate Theses/Dissertations

Understanding consumers' perspectives and motivations is key when looking into making goat meat more accepted in the mainstream meat market. Previous research has shown there is a demand for goat meat from different populations in the US. Consumers also care more about the quality of the food they purchase. Understanding that goat meat has lower cholesterol and is leaner than other red meat is important to incorporating goat meat in niche consumer markets. Providing consumers with a product that is familiar to them is more acceptable than giving consumers a cut of meat they are unfamiliar with. Standard products like …

Element-Based Predictive Modeling Of Hydrothermal Liquefaction Bioproducts Derived From Corn Stover, Isamu Umeda, Meicen Liu, Yi Zheng, Jiefu Wang, Zhiwu Wang, Sandeep Kumar

Civil & Environmental Engineering Faculty Publications

The hydrothermal liquefaction (HTL) process offers an energetic advantage over pyrolysis because it does not require prior drying of the biomass feedstock. However, there are significant challenges in simultaneously estimating both the yields and characteristics of products from the HTL of biomass with theoretical support. This study developed a unique element-based kinetic model to predict the yields, higher heating values, and fuel characteristics of solid residue and heavy bio-oil, based on the temperature, residence time, solid loading, and elemental composition (C, H, N, and O) of corn stover. Furthermore, the model predicted the weights of dissolved carbon and nitrogen in …