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Articles 31 - 60 of 907
Full-Text Articles in Agriculture
Ovipositional Behavior Of The Twig Girdler (Cerambycidae: Oncideres Cingulata) On Stems Of Mockernut Hickory (Carya Tomentosa) In Arkansas, R. Tumlison, L. Serviss
Ovipositional Behavior Of The Twig Girdler (Cerambycidae: Oncideres Cingulata) On Stems Of Mockernut Hickory (Carya Tomentosa) In Arkansas, R. Tumlison, L. Serviss
Journal of the Arkansas Academy of Science
The Twig Girdler (Cerambycidae: Oncideres cingulata) is a long-horned beetle that girdles stems of certain species of trees to prepare a habitat for its offspring. The stems eventually die, break, and fall from the tree, but the beetle usually had already laid its eggs within the stems. Eggs are laid singly, almost always at growth rings or leaf bases. Because the space for the young to develop is finite, laying too many eggs could cause reproductive failure and too few eggs would be suboptimal. We hypothesized that the female laying eggs should be able to evaluate the stem and …
Developing Bioassays For Detection Of Residual Herbicides In Compost, Esther Moore
Developing Bioassays For Detection Of Residual Herbicides In Compost, Esther Moore
2026 Research Poster Competition
Developing Bioassays for Detection of Residual Herbicides in Compost, the use of synthetic herbicides has dominated the field of agricultural production for over a century. While synthetic herbicide use has resulted in an undeniable boost in agricultural productivity, risks such as environmental degradation and reduced yield of non-target plant species must be considered. Key among these risks is compost contamination, especially from persistent herbicides. After these herbicides are applied, they are absorbed by growing vegetation, consumed by herbivores, passed through the digestive tract, and reintroduced into soil manure based compost. Even after this process, chemicals in such herbicides can remain …
Soil Moisture Regime Effects On Near-Surface Soil Chemical Properties In Alfisols Under Native Tallgrass Prairie In Arkansas, Sydney Talley
Soil Moisture Regime Effects On Near-Surface Soil Chemical Properties In Alfisols Under Native Tallgrass Prairie In Arkansas, Sydney Talley
2026 Research Poster Competition
Tallgrass prairie ecosystems provide many crucial ecosystem services, including nutrient cycling and storage, organism habitat, and soil and water conservation. However, tallgrass prairies are considered endangered ecosystems, particularly in the Ozark Highlands and Grand Prairie regions of Arkansas, where less than 0.05% of the state's original prairie land area remains. Understanding soil nutrient supplies over time in native tallgrass prairie ecosystems is critical for quantifying the success of restoration and rehabilitation activities. The objective of this study was to evaluate the effects of soil moisture regime (SMR) (i.e., aquic and udic), region (i.e., Ozark Highlands and Grand Prairie), and their …
Functional Characterization Of The Reniform Nematode Effector Protein Rr6640 In Soybean Parasitism, Noah Solomon
Functional Characterization Of The Reniform Nematode Effector Protein Rr6640 In Soybean Parasitism, Noah Solomon
2026 Research Poster Competition
Reniform nematode (Rotylenchulus reniformis, RN) is a major plant-pest affecting key crops in Arkansas such as cotton and soybean, causing economic losses exceeding $757 million in the U.S. over the past decade. While some genetic resistance exists in cotton, soybean remains highly susceptible, exacerbating RN populations in crop rotations. To address this gap, this research investigates the mechanisms of nematode infection focusing on effectors, the specialized proteins secreted by the parasite to manipulate host cell biology and suppress plant immunity. This study characterizes Rr6640, a putative effector gene identified as an ortholog to a virulence factor in the Beet Cyst …
Letter From The Faculty Editor, Beth Kegley
Letter From The Faculty Editor, Beth Kegley
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Featured Faculty Mentor/Student Team, Lauren Rogers, Danielle Reeves
Featured Faculty Mentor/Student Team, Lauren Rogers, Danielle Reeves
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Letter From The Dean, Jeff Edwards
Letter From The Dean, Jeff Edwards
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Contents, Discovery Editors
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 27 2026, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 27 2026, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Management And Nutrition Factors That Impact Broiler Breeder Fertility, Jeanna Wilson
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
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
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
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
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
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
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
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.
Technical Skills And Their Roles In Agribusiness Supply Chain Management Education, Ryan Loy, Logan L. Britton, F. Bailey Norwood
Technical Skills And Their Roles In Agribusiness Supply Chain Management Education, Ryan Loy, Logan L. Britton, F. Bailey Norwood
Agricultural Economics and Agribusiness Faculty Publications and Presentations
The integration of advanced technical skills and supply chain management (SCM) tools is critical for the evolving demands of agribusiness. This study identifies the technical competencies, software proficiencies, and educational strategies essential for preparing students to excel in modern SCM roles. Through semi-structured interviews with 26 SCM professionals across US agribusiness sectors, the study highlights the demand for expertise in tools such as SAP, Power BI, and SQL alongside capabilities in data-driven decision-making and adaptability. Despite theoretical preparation, graduates often lack practical experience with industry-standard technologies, underscoring a gap in academic curricula. The findings suggest that agribusiness programs should emphasize …
Temperature Variability And Its Effect On Seasonal Yield Of Rice In Bangladesh: A Long-Term Trend Assessment, Md. Abdullah Al Mamun, Md. Abdur Rouf Sarkar, Mou Rani Sarker, Andrew M. Mckenzie, Sheikh Arafat Islam Nihad, Akbar Hossain
Temperature Variability And Its Effect On Seasonal Yield Of Rice In Bangladesh: A Long-Term Trend Assessment, Md. Abdullah Al Mamun, Md. Abdur Rouf Sarkar, Mou Rani Sarker, Andrew M. Mckenzie, Sheikh Arafat Islam Nihad, Akbar Hossain
Agricultural Economics and Agribusiness Faculty Publications and Presentations
Bangladesh, an agriculturally reliant and climate-vulnerable country, requires real-time quantification of climatic variables, such as temperature, to sustain food security. However, the effects of spatial and temporal temperature variations on rice productivity across seasons remain underexplored. Our study addresses this gap by analyzing temperature data from 35 meteorological stations (1970-2020) using parametric and nonparametric methods. The Mann-Kendall test revealed a pronounced increase in minimum temperatures compared to maximum temperatures, particularly during the monsoon season. K-means clustering identified four seasonal station clusters, revealing that rising minimum temperatures positively influenced Aus rice yields in seven regions, while temperatures above 35 degrees C …
Exploring Retention And Satisfaction Among Arkansas County-Level Cooperative Extension Employees: A Job Embeddedness Perspective, Rebecca M. Simon
Exploring Retention And Satisfaction Among Arkansas County-Level Cooperative Extension Employees: A Job Embeddedness Perspective, Rebecca M. Simon
Graduate Theses and Dissertations
Abstract This quantitative study investigated the retention of county-level employees within the Arkansas Cooperative Extension Service (CES) using Job Embeddedness Theory (JET) as the theoretical framework. The research aimed to describe levels of job embeddedness, job satisfaction, and intent to stay, and to examine the relationships among these variables. A census of 328 CES employees was conducted, yielding a 53% response rate. Data were collected through a validated online survey and analyzed using descriptive statistics, correlation analysis, and multiple regression. Results indicated high scores in organizational fit and sacrifice dimensions, while links to organization and community were comparatively lower. Age …
Essays On The Economics Of Farmland Valuation And Investment In U.S. Agriculture, Colson Tester
Essays On The Economics Of Farmland Valuation And Investment In U.S. Agriculture, Colson Tester
Graduate Theses and Dissertations
This dissertation presents three empirical essays that collectively advance the understanding of farmland valuation in key U.S. agricultural regions, emphasizing the critical advantages of comprehensive, transaction-based data over traditional survey methods. Farmland represents a significant portion of agricultural wealth, and its accurate valuation is crucial for farmers, investors, and policymakers, influencing everything from credit access to investment strategies. Historically, research has often relied on subjective survey data, which can suffer from biases, inaccuracies, and insufficient granularity. This dissertation addresses these limitations by leveraging extensive datasets of arm’s-length farmland transactions, offering a more precise and market-driven perspective on land values. The …
Cattlefever: An Automated Cattle Fever Estimation System, Trong Thang Pham, Ethan Coffman, Beth Kegley, Jeremy G. Powell, Jiangchao Zhao, Ngan Le
Cattlefever: An Automated Cattle Fever Estimation System, Trong Thang Pham, Ethan Coffman, Beth Kegley, Jeremy G. Powell, Jiangchao Zhao, Ngan Le
Electrical Engineering and Computer Science Faculty Publications and Presentations
Farmers face the critical challenge of monitoring cattle well-being for both ethical and economic success, relying on signals like body temperature and facial expressions to assess their animals' health. However, these indicators have traditionally relied on human observation with manual measurement, which is time-consuming and subjective. Despite this clear need, no automated system currently exists for monitoring cattle body temperature, and available datasets remain limited in scope. To address these challenges, we make two key contributions: (i) We introduce CattleFace-RGBT, a novel RGB-Thermal (RGB-T) Cattle Facial Landmark dataset consisting of 2,300 paired RGB and thermal images (4,600 images in total), …
Hyperspectral Indicators And Characterization Of Glyphosate-Induced Stress In Common Lambsquarters (Chenopodium Album L.), Mario Andrés Soto Valencia
Hyperspectral Indicators And Characterization Of Glyphosate-Induced Stress In Common Lambsquarters (Chenopodium Album L.), Mario Andrés Soto Valencia
Graduate Theses and Dissertations
Hyperspectral sensing enables detection of herbicide stress in weeds, but practical use requires strategies for redundancy control, rating variability management, and evaluator bias mitigation. This thesis evaluates common lambsquarters (Chenopodium album) under glyphosate exposure, aiming to identify key wavelengths, construct vegetation indices, and improve injury modeling. Greenhouse experiments used dimensionality reduction methods (principal component analysis, Relief F, Bayesian discriminant analysis) to isolate 34 unique wavelengths from about 3,200 bands. Calibration data were collected 14 days after treatment (DAT) to support wavelength selection and model development, while data from 27 DAT were used for independent validation. Class comparisons across six statistically …
Novel Approaches To Disinfecting Poultry Processing Wastewater For Reuse, Seth Olorunmijuwonlo Adesope
Novel Approaches To Disinfecting Poultry Processing Wastewater For Reuse, Seth Olorunmijuwonlo Adesope
Graduate Theses and Dissertations
Water is an essential resource used in poultry processing, generating large volumes of foodborne pathogen-rich wastewater posing treats to public health. Treating poultry processing wastewater (PPW) is crucial for safe water reuse and sustainable development. Conventional disinfection methods like aerobic digestion and chlorination, although effective, impose considerable operational cost and generate harmful by-products. Integrated recycling systems such as advanced oxidation processes (AOPs) which destroy micro-organisms through the generation of reactive oxygen species (ROS) present a promising opportunity for enhancing resources and sustainability. This study investigated the use of photo-electrochemical (PEC), specifically by combining electrochemical (EC) and photochemical (PC; Photosensitizer and …
Blinder-Oaxaca Decomposition Analysis Of The Urban-Rural Gap In Child Nutrition In Bangladesh, Mahbub Hossain, Mohammad Jahangir Alam, Ismat Ara Begum, Huichin Sun, Andrew M. Mckenzie
Blinder-Oaxaca Decomposition Analysis Of The Urban-Rural Gap In Child Nutrition In Bangladesh, Mahbub Hossain, Mohammad Jahangir Alam, Ismat Ara Begum, Huichin Sun, Andrew M. Mckenzie
Agricultural Economics and Agribusiness Faculty Publications and Presentations
Child undernutrition is a leading cause of death among young children worldwide. In Bangladesh, severe undernutrition is prevalent among nearly 25% of the under five children. Additionally, the prevalence of child undernutrition varies significantly between urban and rural areas in the country. This widespread prevalence of undernutrition and regional disparity raises concerns among Bangladeshi policymakers because childhood undernutrition can lead to irreversible consequences. Using the latest data from Bangladesh's Multiple Indicator Cluster Survey (MICS), this study examines factors contributing to the urban-rural gap in child nutrition. The Blinder-Oaxaca decomposition results suggest that nearly 78% of the observed difference in weight-for-age …
Economically Optimal Soil Sampling Density And Application Technology For Potassium Fertilizer For Soybean In The Mid-Southern Us, Bayarbat Badarch, Aurelie Poncet, Shelby Ridar, Nathan Slaton, Michael Popp
Economically Optimal Soil Sampling Density And Application Technology For Potassium Fertilizer For Soybean In The Mid-Southern Us, Bayarbat Badarch, Aurelie Poncet, Shelby Ridar, Nathan Slaton, Michael Popp
Agricultural Economics and Agribusiness Faculty Publications and Presentations
To maximize beneficial potassium (K) fertilizer use in irrigated soybean (Glycine max. (L.) Merr.) fields with spatially varying soil-test K (STK), the value of added information from more precise STK maps must be greater than the associated information collection costs. In eleven fields, we modeled the impact of soil sampling densities (SD) ranging from 2.2 samples ha-1 in the largest field (41.2 ha) to 13.59 samples ha-1 in the smallest field (7.4 ha) on STK maps with 0.4 ha grid size. The accuracy of profit-maximizing fertilizer rate prescription maps varied by SD and subsequent yield estimates using either uniform …
Biosecurity Investment Impacts On Highly Pathogenic Avian Influenza Control In United States Commercial Turkey Operations, Jada M. Thompson, Kelly Patyk, Victoria Fields, Matthew Branan, Amy Delgado, Kylie Roesler
Biosecurity Investment Impacts On Highly Pathogenic Avian Influenza Control In United States Commercial Turkey Operations, Jada M. Thompson, Kelly Patyk, Victoria Fields, Matthew Branan, Amy Delgado, Kylie Roesler
Agricultural Economics and Agribusiness Faculty Publications and Presentations
Highly pathogenic avian influenza (HPAI) is an extremely transmissible virus that poses a significant threat to the U.S. turkey industry through contagion from migratory birds and results in whole-farm depopulation. To combat the disastrous economic impacts of HPAI, this study examined how biosecurity investments may have economic benefits to producers and the industry. Using data collected from a farm-focused survey of commercial turkey producers, the differences in biosecurity practices between farms affected by HPAI and unaffected farms in 2022 were analyzed. This evaluation aims to understand how effective biosecurity investments were towards reducing the susceptibility of a turkey farm to …
Satellite Remote Sensing Reveals Voluntary Cover-Crop Adoption And Crop-Rotation Hotspots In The Mississippi Alluvial Plain, Zobaer Ahmed, Connor Lawson, Kris R. Brye, V. Steven Green, Mike Popp, Aaron Shew, Lawton Nalley
Satellite Remote Sensing Reveals Voluntary Cover-Crop Adoption And Crop-Rotation Hotspots In The Mississippi Alluvial Plain, Zobaer Ahmed, Connor Lawson, Kris R. Brye, V. Steven Green, Mike Popp, Aaron Shew, Lawton Nalley
Agricultural Economics and Agribusiness Faculty Publications and Presentations
Government-subsidized programs like the Environmental Quality Incentives Program and the Conservation Stewardship Program provide financial motivation for adopting cover crops. Nevertheless, many producers have internalized the holistic benefits of cover crops and voluntarily adopted them as a sustainable soil management practice. Yet, little is known about how cover crop adoption propagates beyond the first order link between financial incentives and total adopted cover crop acres. This study examined voluntary adoption of winter cover crops as well as which crop rotations had the highest cover crop use in the Mississippi Alluvial Plain (MAP) region. Cover crop locations were identified using remote …