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Articles 151 - 180 of 2172
Full-Text Articles in Agriculture
25 Rules Of Thumb For Field Crops, Matt Yost, Niel Allen, Grant Cardon, Earl Creech, Ryan Larsen, Rhonda Miller, Mark Nelson, Claudia Nischwitz, Matthew Palmer, Steven Price, Ricardo Ramirez, Corey Ransom, Benjamin Scow, Randall Violett
25 Rules Of Thumb For Field Crops, Matt Yost, Niel Allen, Grant Cardon, Earl Creech, Ryan Larsen, Rhonda Miller, Mark Nelson, Claudia Nischwitz, Matthew Palmer, Steven Price, Ricardo Ramirez, Corey Ransom, Benjamin Scow, Randall Violett
All Current Publications
This article is not a comprehensive list of the practices farmers need to be successful in their operations, but it represents an attempt to capture 25 common tips or “rules” from a wide range of Extension experts throughout Utah, from seedbed preparation, to harvesting guidelines.
Grape Varieties For Utah, Michael Caron, Taun Beddes, Tiffany Maughan, Michael Pace, Brent Black
Grape Varieties For Utah, Michael Caron, Taun Beddes, Tiffany Maughan, Michael Pace, Brent Black
All Current Publications
This fact sheet introduces the different types of grapes and provides suggestions of grape varieties that can be grown in Utah.
Drought Mitigation For Cow/Calf Producers: Depopulation Strategies, Reganne K. Briggs, Joshua Dallin, Jacob Hadfield, Matthew D. Garcia
Drought Mitigation For Cow/Calf Producers: Depopulation Strategies, Reganne K. Briggs, Joshua Dallin, Jacob Hadfield, Matthew D. Garcia
All Current Publications
Drought is a recurring event faced by many cow/calf producers across the nation. As drought events increase in their severity, it is important for cattle producers to have a management plan to mitigate the economic effects of drought. Two of the most common strategies for mitigating the effects of drought include buying additional feed and depopulating a portion of the herd. This fact sheet reviews strategies that will guide the decision-making process to cull cattle during drought.
Identifying Conifer Tree Vs. Deciduous Shrub And Tree Regeneration Trajectories In A Space-For-Time Boreal Peatland Fire Chronosequence Using Multispectral Lidar, Humaira Enayetullah, Laura Chasmer, Christopher Hopkinson, Dan Thompson, Danielle Cobbaert
Identifying Conifer Tree Vs. Deciduous Shrub And Tree Regeneration Trajectories In A Space-For-Time Boreal Peatland Fire Chronosequence Using Multispectral Lidar, Humaira Enayetullah, Laura Chasmer, Christopher Hopkinson, Dan Thompson, Danielle Cobbaert
Aspen Bibliography
Wildland fires and anthropogenic disturbances can cause changes in vegetation species composition and structure in boreal peatlands. These could potentially alter regeneration trajectories following severe fire or through cumulative impacts of climate-mediated drying, fire, and/or anthropogenic disturbance. We used lidar-derived point cloud metrics, and site-specific locational attributes to assess trajectories of post-disturbance vegetation regeneration in boreal peatlands south of Fort McMurray, Alberta, Canada using a space-for-time-chronosequence. The objectives were to (a) develop methods to identify conifer trees vs. deciduous shrubs and trees using multi-spectral lidar data, (b) quantify the proportional coverage of shrubs and trees to determine environmental conditions driving …
Effects Of Buried Wood On The Development Of Populus Tremuloides On Various Oil Sands Reclamation Soils, Kaitlyn E. Trepanier, Laura Manchola-Rojas, Bradley D. Pinno
Effects Of Buried Wood On The Development Of Populus Tremuloides On Various Oil Sands Reclamation Soils, Kaitlyn E. Trepanier, Laura Manchola-Rojas, Bradley D. Pinno
Aspen Bibliography
Buried wood is an important but understudied component of reclamation soils. We examined the impacts of buried wood amounts and species on the growth of the common reclamation tree species trembling aspen (Populus tremuloides). In a greenhouse study, aspen seedlings were planted into four soil types, upland derived fine forest floor-mineral mix (fFFMM), coarse forest floor-mineral mix (cFFMM), and lowland derived peat and peat-mineral mix (PMM), that were mixed with either aspen or pine wood shavings at four concentrations (0%, 10%, 20% and 50% of total volume). Height and diameter growth, chlorophyll concentration, and leaf and stem biomass were measured. …
Cultivation Of Industrial Hemp On And Near Airports: Implications For Wildlife Use And Risk To Aviation Safety, Bradley F. Blackwell, Page E. Klug, Lee A. Humberg, Zachary T. Brym, Bryan M. Kluever, Jennifer M. Edwards
Cultivation Of Industrial Hemp On And Near Airports: Implications For Wildlife Use And Risk To Aviation Safety, Bradley F. Blackwell, Page E. Klug, Lee A. Humberg, Zachary T. Brym, Bryan M. Kluever, Jennifer M. Edwards
Human–Wildlife Interactions
Land-use planning on and near airports should consider possible revenue from land covers, associated maintenance costs, and potential for land covers to attract vertebrate species recognized as hazardous to aviation safety. The U.S. Federal Aviation Administration has expressed interest in recent attention given to industrial hemp (Cannabis sativa L.; hemp) as a revenue-producing land cover that might be cultivated on or near airports. Our purpose was to better understand the potential production value of hemp as well as its possible role in affecting aviation safety if cultivated on or near airports. Our objectives were to: (1) review the literature …
Reduced Chelate Strength Increases Iron Bioavailability For Monocots In Hydroponic Culture, Paul Kusuma, Bruce Bugbee
Reduced Chelate Strength Increases Iron Bioavailability For Monocots In Hydroponic Culture, Paul Kusuma, Bruce Bugbee
Hydroponics/Soilless Media
Hydroponically grown corn (Zea mays) is highly susceptible to Fe-chlorosis. Iron (Fe) is essential for chlorophyll synthesis. Metals bound to chelates have reduced bioavailability (activity) compared to free ions.
Far-Red Photography For Measuring Plant Growth: A Novel Approach, Cole Webb, F. Mitchell Westmoreland, Bruce Bugbee, Xiaojun Qi
Far-Red Photography For Measuring Plant Growth: A Novel Approach, Cole Webb, F. Mitchell Westmoreland, Bruce Bugbee, Xiaojun Qi
Techniques and Instruments
A critical part of agricultural studies is determining plant stress and growth rate. Modern computer vision provides a series of tools that can be applied to derive this data. In this paper, we will show our findings, analyze their accuracy, and define a system capable of deriving this data with near-human accuracy in a fraction of the time. Denoising techniques applicable to this system will be discussed, as will our discoveries and findings. Finally, suggestions for further research opportunities will be provided.
Industrial Hemp As A Resource For Birds In Agroecosystems: Human–Wildlife Conflict Or Conservation Opportunity?, Emily A. Kotten, Iona Hennessy, Bryan M. Kluever, Zachary T. Brym, Bradley F. Blackwell, Lee A. Humberg, Page E. Klug
Industrial Hemp As A Resource For Birds In Agroecosystems: Human–Wildlife Conflict Or Conservation Opportunity?, Emily A. Kotten, Iona Hennessy, Bryan M. Kluever, Zachary T. Brym, Bradley F. Blackwell, Lee A. Humberg, Page E. Klug
Human–Wildlife Interactions
Industrial hemp (Cannabis sativa L.; hemp) is an emerging crop in the United States with little known about bird use or the potential for birds to become an agricultural pest. We identified birds associated with hemp fields, using repeated visits to oilseed plots in North Dakota, USA (n = 6) and cannabinoid (CBD) plots in Florida, USA (n = 4) from August to November 2020. We did not control for plot area or density; our observations were descriptive only. We observed 10 species in hemp, 12 species flying over hemp, and 11 species both foraging in and …
Sap Beetles, Nick Volesky, Zachery R. Schrumm, Kalen Taylor
Sap Beetles, Nick Volesky, Zachery R. Schrumm, Kalen Taylor
All Current Publications
Sap beetles are typically considered a secondary pest of corn and overripe fruits and vegetables. They are broadly identified by their small and ovular bodies and club-shaped antennae. Adult sap beetles often feed on corn silk, pollen, and tassels. Larvae feed on kernels inside the husk. This fact sheet reviews how to identify sap beetles and their hosts and damage. It also provides ideas on how to monitor for sap beetles and outlines the options for managing them.
Usu Fasl Hands In The Garden Program, Deborah Ivie
Usu Fasl Hands In The Garden Program, Deborah Ivie
Funded Research Records
No abstract provided.
Management Strategies For Tomato Spotted Wilt Virus In Utah Tomatoes, Benjamin Scow
Management Strategies For Tomato Spotted Wilt Virus In Utah Tomatoes, Benjamin Scow
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Plant diseases are among the leading causes of tomato stand loss in the state of Utah. Viral plant diseases are often transferred from one plant to another by insect feeding. In Utah, one of the leading viruses that infects tomatoes is Tomato spotted wilt virus (TSWV) which is spread by thrips. The objectives of this study were as follows.
- Determine the impact from reflective mulch and row covers on thrips population numbers.
- Determine the effects of row covers on the TSWV infection rate.
- Compare varietal response to thrip populations.
This 2-year study focused on the use of two different types …
Managing Vegetation Around Fruit Trees, Teryl Roper
Managing Vegetation Around Fruit Trees, Teryl Roper
All Current Publications
Fruit trees thrive along the Wasatch Front and in many other locations in Utah. Backyard fruit trees are very common in Utah, and producers quickly become attuned to insect and disease pests that can swiftly spoil substantial amounts of fruit. They are typically less aware of the detrimental effect of competing vegetation around fruit trees. This fact sheet describes the nature of vegetation competition and proposes management strategies to reduce or eliminate competition.
Sampling Bias Exaggerates A Textbook Example Of A Trophic Cascade, Elaine M. Brice, Eric J. Larsen, Daniel R. Macnulty
Sampling Bias Exaggerates A Textbook Example Of A Trophic Cascade, Elaine M. Brice, Eric J. Larsen, Daniel R. Macnulty
Aspen Bibliography
Understanding trophic cascades in terrestrial wildlife communities is a major challenge because these systems are difficult to sample properly. We show how a tradition of non-random sampling has confounded this understanding in a textbook system (Yellowstone National Park) where carnivore [Canis lupus (wolf)] recovery is associated with a trophic cascade involving changes in herbivore [Cervus canadensis (elk)] behaviour and density that promote plant regeneration. Long-term data indicate a practice of sampling only the tallest young plants overestimated regeneration of overstory aspen (Populus tremuloides) by a factor of 4–7 compared to random sampling because it favoured plants taller than the preferred …
Evaluation Of Cold-Hardy Grapes On The Wasatch Front, Michael Caron, Taun Beddes, Michael Pace, Brent Black
Evaluation Of Cold-Hardy Grapes On The Wasatch Front, Michael Caron, Taun Beddes, Michael Pace, Brent Black
All Current Publications
Grapes can be an excellent addition to home gardens and a revenue opportunity for small-acreage farms. Utah’s Wasatch Front region, along with portions of Cache Valley, are well suited to grow grapes, particularly the more cold-hardy cultivars. Many new cold-hardy cultivars have been introduced over the last few decades, including both wine and table types. However, many of these newer cultivars have not been adequately tested in Utah’s unique climate. Utah State University Extension conducted a grape cultivar comparison planting in Lehi, Utah. This fact sheet reviews the outcomes of the study and offers information on tested varieties that have …
Evaluating Alternative Feed Sources During Drought, Matthew D. Garcia, Ruger P. Carter, Ryan Larsen, Eric Thacker, Jacob Hadfield, Reganne K. Briggs, Justen Smith
Evaluating Alternative Feed Sources During Drought, Matthew D. Garcia, Ruger P. Carter, Ryan Larsen, Eric Thacker, Jacob Hadfield, Reganne K. Briggs, Justen Smith
All Current Publications
During years of drought, it is important to critically evaluate alternative feed sources available for cattle. The traditional method for sustaining a herd through a drought is feeding extra stored forage to compensate for decreased forage production or decreased forage quality available on rangelands and pastures due to drought conditions. However, hay prices rise substantially, and availability decreases due to irrigation water limitations and increased demand from livestock producers. This fact sheet will evaluate why hay prices rise and what alternatives are available to compensate for forage reductions during drought.
Size And Scope Of San Juan County Agriculture 2020, Reagan Wytsalucy, Ryan Feuz, Ryan Larsen, Paige Wray
Size And Scope Of San Juan County Agriculture 2020, Reagan Wytsalucy, Ryan Feuz, Ryan Larsen, Paige Wray
All Current Publications
Located in the southeast corner of the state with approximately 5.2 million acres, San Juan County (SJC) is the largest county in Utah. It makes up one of the four corner states bordered by Colorado on the east and Arizona on the south. Surrounding Utah counties include Kane, Garfield, Wayne, Emery, and Grand. The current population is estimated at 15,772. This fact sheet provides agricultural information on land ownership, crop, vegetable, and livestock production, county characteristics, and producer farm income for San Juan County.
Gambel Oak Care, Shawn Olsen, Debbie Amundsen, Shital Poudyal
Gambel Oak Care, Shawn Olsen, Debbie Amundsen, Shital Poudyal
All Current Publications
Gambel oak is commonly called scrub oak, but other common names are Rocky Mountain white oak and Utah white oak. The scientific name is Quercus gambelii, after William Gambel, an American naturalist. This fact sheet reviews Gambel oak's usability in the landscape, its care, growth requirements, diseases and pests, and maintenance.
Growth–Defense Trade-Offs Shape Population Genetic Composition In An Iconic Forest Tree Species, Olivia L. Cope, Ken Keefover-Ring, Eric L. Kruger, Richard L. Lindroth
Growth–Defense Trade-Offs Shape Population Genetic Composition In An Iconic Forest Tree Species, Olivia L. Cope, Ken Keefover-Ring, Eric L. Kruger, Richard L. Lindroth
Aspen Bibliography
All organisms experience fundamental conflicts between divergent metabolic processes. In plants, a pivotal conflict occurs between allocation to growth, which accelerates resource acquisition, and to defense, which protects existing tissue against herbivory. Trade-offs between growth and defense traits are not universally observed, and a central prediction of plant evolutionary ecology is that context-dependence of these trade-offs contributes to the maintenance of intraspecific variation in defense [Züst and Agrawal, Annu. Rev. Plant Biol., 68, 513–534 (2017)]. This prediction has rarely been tested, however, and the evolutionary consequences of growth–defense trade-offs in different environments are poorly understood, especially in long-lived species …
Sycamore Scale (Stomacoccus Platani), Marion Murray, Ryan Davis
Sycamore Scale (Stomacoccus Platani), Marion Murray, Ryan Davis
All Current Publications
Sycamore scale feeds on foliage of London planetree and California sycamore in urbanized areas throughout Utah. The insect is difficult to see with the naked eye, so we rely on the primary symptom of yellow-to-brown leaf spots. If needed, the timing of treatment is at bud break and involves oil application and/or a soil-applied systemic insecticide.
Data From: Yellow Air Day Advisory Study, Arthur J. Caplan
Data From: Yellow Air Day Advisory Study, Arthur J. Caplan
Browse all Datasets
Using a dataset consisting of daily vehicle trips, PM2.5 concentrations, along with a host of climactic control variables, we test the hypothesis that “yellow air day” advisories provided by the Utah Division of Air Quality resulted in subsequent reductions in vehicle trips taken during northern Utah’s winter-inversion seasons in the early 2000s. Winter inversions occur in northern Utah when climactic conditions are such that PM2.5 concentrations (derived mainly from vehicle emissions) become trapped in the lower atmosphere, leading to unhealthy air quality (concentrations of at least 35 µg/m3) over a span of what are called “red air days”. When concentrations …
High Tunnel Pest Management - Caterpillars, Nick Volesky, Marion Murray
High Tunnel Pest Management - Caterpillars, Nick Volesky, Marion Murray
All Current Publications
In Utah high tunnel production, there are various caterpillar pests (larvae of moth and butterfly species) that cause economic damage to crops. Common caterpillar pest species found in Utah include hornworms, tomato fruit worms, imported cabbage worms, diamondback moths, cabbage loopers, armyworms, and cutworms. Various weed species growing inside or outside high tunnels can attract and harbor caterpillar pests. Managing caterpillar pests in high tunnels involves various mechanical, chemical, biological, and cultural control practices.
Association Between Financial Education, Affective And Cognitive Financial Knowledge, And Financial Behaviors, Lucy M. Delgadillo, Yoon Lee
Association Between Financial Education, Affective And Cognitive Financial Knowledge, And Financial Behaviors, Lucy M. Delgadillo, Yoon Lee
Applied Sciences, Technology and Education Faculty Publications
Using data from the 2018 National Financial Capability Study, this paper examined the relationship between financial education participation and affective and cognitive financial knowledge. Involvement in financial education yielded statistically significant associations between affective and cognitive domains. The results showed that participation in financial education was associated with both cognitive and affective financial knowledge as well as long-term financial behaviors. The findings supported the case for life-long learning of financial education for young adults, Blacks and Hispanics, and women. One important implication was the need to include both the affective and cognitive domains when teaching or researching financial education.
Determining The Novel Pathogen Neodothiora Populina As The Causal Agent Of The Aspen Running Canker Disease In Alaska, Loretta M. Winton, Gerard C. Adams, Roger W. Ruess
Determining The Novel Pathogen Neodothiora Populina As The Causal Agent Of The Aspen Running Canker Disease In Alaska, Loretta M. Winton, Gerard C. Adams, Roger W. Ruess
Aspen Bibliography
Neodothiora populina Crous, G.C. Adams & Winton was determined to be a new pathogen of trembling aspen (Populus tremuloides) growing in Alaska, based on completion of Koch’s Postulates in replicated forest and growth chamber inoculation trials. The pathogen is responsible for severe damage and widespread rapid mortality of sapling to mature aspen (≥ 80 years) in the boreal forests of interior Alaska, due to large diffuse annual (1–2 years) cankers. Isolation of the pathogen was challenging, and identification based on cultural characters was difficult. Fruiting bodies were not found on wild diseased trees, but erumpent pycnidia were found …
Creaciones En La Cocina Curriculum, Celina Wille
Creaciones En La Cocina Curriculum, Celina Wille
All Current Publications
Este currículo es una interpretación al español y adaptación cultural basado en su mayoría en la publicación titulada CREATE FAMILY MEALS* de Food Sense del Programa de Extensión de la Universidad Estatal de Utah (USU).
Alfanet: A Database Of Alfalfa-Bacterial Stem Blight Protein–Protein Interactions Revealing The Molecular Features Of The Disease-Causing Bacteria, Raghav Kataria, Rakesh Kaundal
Alfanet: A Database Of Alfalfa-Bacterial Stem Blight Protein–Protein Interactions Revealing The Molecular Features Of The Disease-Causing Bacteria, Raghav Kataria, Rakesh Kaundal
Plants, Soils and Climate Student Research
Alfalfa has emerged as one of the most important forage crops, owing to its wide adaptation and high biomass production worldwide. In the last decade, the emergence of bacterial stem blight (caused by Pseudomonas syringae pv. syringae ALF3) in alfalfa has caused around 50% yield losses in the United States. Studies are being conducted to decipher the roles of the key genes and pathways regulating the disease, but due to the sparse knowledge about the infection mechanisms of Pseudomonas, the development of resistant cultivars is hampered. The database alfaNET is an attempt to assist researchers by providing comprehensive Pseudomonas proteome …
Parents' Perceptions Of Life Skill Development And Satisfaction With Utah 4-H, Oakley G. Perry
Parents' Perceptions Of Life Skill Development And Satisfaction With Utah 4-H, Oakley G. Perry
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The 4-H program is the nation’s largest youth development program with near six million members nationwide. Utah 4-H provides this program to the residents of Utah through Utah State University’s Extension Service. The program focuses on teaching life skills to youth to prepare them for their future using hands on educational programs tied to project areas, or particular topics like equine science or fine arts. Utah 4-H has many different stakeholders, one of which being the parents of its members. For youth programs to continue to be successful, these programs must show stakeholders their significance and ensure that its audience …
Insectos Cara De Gato, Diane G. Alston, Marion Murray, Celina Wille
Insectos Cara De Gato, Diane G. Alston, Marion Murray, Celina Wille
All Current Publications
Hay una serie de insectos con el hábito alimenticio de perforar y succionar que pueden causar deformidad y lesiones del tipo cara de gato en los frutales de pepita y hueso, como la chinche ligus, la chinche hedionda y la chinche del boxelder. La lesión cara de gato es causada cuando la chinche se alimenta agujerando los botones florales y la fruta. El resultado son depresiones, deformidades y cicatrices desagradables en la fruta. El nombre “cara de gato” proviene de la forma distorsionada de la fruta que se asemeja a las mejillas fruncidas de un gato. Además de los insectos …
Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille
Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille
All Current Publications
El barrenador grande del durazno (orden Lepidóptera, familia Sesiidae) es originario de América del Norte, donde las cerezas y ciruelas silvestres son sus huéspedes nativos. Es una plaga esporádica en los frutales de hueso o carozo de Utah, pero si no se controla, puede ser lo suficientemente grave como para causar la pérdida del árbol.
What Is Biochar And How Is It Used?, Marion Murray
What Is Biochar And How Is It Used?, Marion Murray
All Current Publications
Biochar is a charcoal-like product that contains no petroleum. It is made by heating biomass such as herbaceous or woody crop residues, non-salvageable timber, and slash, or animal manure, in a contained system. There are many potential uses for biochar including water treatment, land reclamation, and carbon sequestration. Biochar may also be used as a soil amendment for two purposes – to improve plant health and to store carbon.