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Articles 1 - 30 of 2272
Full-Text Articles in Plant Sciences
Creating Sustainable School And Home Gardens: Raised Bed Gardening, Rita Hagevik, Kathy Cabe Trundle
Creating Sustainable School And Home Gardens: Raised Bed Gardening, Rita Hagevik, Kathy Cabe Trundle
All Current Publications
This fact sheet is part of a series about creating sustainable school and home gardens. It provides information and resources on raised bed gardening, which can help gardeners maximize space and increase food or flower production, all with fewer weeds.
Creating Sustainable School And Home Gardens: Vertical Gardening, Tyelar Haines, Rita Hagevik, Kathy Cabe Trundle
Creating Sustainable School And Home Gardens: Vertical Gardening, Tyelar Haines, Rita Hagevik, Kathy Cabe Trundle
All Current Publications
This fact sheet is part of a series about creating sustainable school and home gardens. It provides information and resources on vertical gardening, which can maximize space, increase food production, and improve plant health.
Virus Del Marchitamiento Manchado Del Tomate En Tomates Y Pimientos, Claudia Nischwitz, Mariah Noorlander, Mary Ann Hubbell, Celina Wille
Virus Del Marchitamiento Manchado Del Tomate En Tomates Y Pimientos, Claudia Nischwitz, Mariah Noorlander, Mary Ann Hubbell, Celina Wille
All Current Publications
En Utah, el virus del marchitamiento manchado del tomate (TSWV, por sus siglas en inglés) comúnmente afecta a tomates, pimientos y tomatillos.
Creating Sustainable School And Home Gardens: Welcoming Pollinators, Kaitlin Cambell, Rita Hagevik, Kathy Cabe Trundle
Creating Sustainable School And Home Gardens: Welcoming Pollinators, Kaitlin Cambell, Rita Hagevik, Kathy Cabe Trundle
All Current Publications
This fact sheet is part of a series about creating sustainable school and home gardens. It focuses on welcoming pollinators to the garden by providing a safe and effective habitat, and lists recommended plantings and resources.
Soil Reclamation Strategies In Construction Disturbed Soil, Alexis Koelling
Soil Reclamation Strategies In Construction Disturbed Soil, Alexis Koelling
All Graduate Reports and Creative Projects, Fall 2023 to Present
The rapid urbanization occurring in arid environments like the Intermountain West region of the U.S. significantly alters soil conditions. Construction of roads, buildings, and other infrastructure leads to the disturbance of soil structure, nutrient depletion, and reduced fertility. This research addresses the need for sustainable soil management practices that may restore soil health post-construction. In this study, the effectiveness of various soil amendments and application methods on specific soil parameters and turfgrass establishment in construction-disturbed soils was evaluated. The study highlights the critical role of soil amendments, particularly municipal solid waste (MSW) compost, in improving soil quality and plant growth. …
Sustainable Fertilizer Management Practices For Container Nursery Production, Saroj Burlakoti
Sustainable Fertilizer Management Practices For Container Nursery Production, Saroj Burlakoti
All Graduate Theses and Dissertations, Fall 2023 to Present
Growing nursery plants in containers requires a timely supply of mineral nutrients for optimum growth. However, there is a misconception among growers that the application of higher doses of fertilizers hastens plant growth; instead, it can lead to runoff and leaching loss of nutrients. Reducing fertilizer application while sustaining healthy plants can not only negate environmental consequences but also save fertilizer costs. For example, two ground covers, Lysimachia nummularia (creeping jenny, moneywort) and Vinca minor 'Bowles' (periwinkle), can be grown for three months by applying 6 mg/L of phosphorus (P) as reduction of P to single application of 6 mg/L …
Nutrient Management Of Cannabis In Controlled Environments, Julie A. Hershkowitz
Nutrient Management Of Cannabis In Controlled Environments, Julie A. Hershkowitz
All Graduate Theses and Dissertations, Fall 2023 to Present
Cannabis has been cultivated for millennia as a multipurpose crop for food, fiber, and medicine. Secondary metabolites called cannabinoids, including cannabidiol (CBD) and the psychoactive Δ-9 tetrahydrocannabinol (Δ-9 THC), are responsible for the medicinal properties of cannabis. The intoxicating nature of THC resulted in legislation prohibiting the possession and production of cannabis within the United States during the 20th century. As a result, research programs on cannabis production were halted at most institutions. In recent years, cannabis production has become widespread within the US as a result of increasing legalization. However, modern cannabis production nutrient management programs often include …
Morphological And Physio-Biochemical Responses And Gene Expression Analyses Of Landscape Plants Under Salinity Stress, Asmita Paudel
Morphological And Physio-Biochemical Responses And Gene Expression Analyses Of Landscape Plants Under Salinity Stress, Asmita Paudel
All Graduate Theses and Dissertations, Fall 2023 to Present
Soil salinity is a significant global issue that adversely impacts the growth and development of landscape plants. One of the effective strategies to prevent salinity damage to landscape plants is to cultivate species that are tolerant to the prevailing salinity levels. Salinity tolerance varies among plant species and cultivars. Therefore, this research aimed to investigate the salinity tolerance of nine landscape plants [Albizia julibrissin (mimosa tree), Arctostaphylos uva-ursi (kinnikinnick), Cercocarpus ledifolius (curl-leaf mountain mahogany), Cercocarpus montanus ‘Coy’ (alder-leaf mountain mahogany), Penstemon barbatus ‘Novapenblu’ (rock candy blue® penstemon), Penstemon strictus ‘Rocky Mountain’ (rocky mountain beardtongue), Punica granatum ‘Wonderful’ (pomegranate), …
Contrasting Nitrogen Sources Impact Nitrogen Use Efficiency And Soil Health Under Silage Corn Production In A Semi-Arid Environment, Phearen Kit Miller
Contrasting Nitrogen Sources Impact Nitrogen Use Efficiency And Soil Health Under Silage Corn Production In A Semi-Arid Environment, Phearen Kit Miller
All Graduate Theses and Dissertations, Fall 2023 to Present
Silage corn production challenges sustainable intensification and soil health in semi-arid environments because the entire aboveground biomass is harvested and removed from the field. An irrigated silage corn field study was conducted over a decade comparing nitrogen fertility sources using a complete randomized block design with four treatments: control with no nitrogen fertilizer (control), low ammonium sulfate at 112 kg N ha−1 (AS100), high ammonium sulfate at 224 kg N ha−1 (AS200), and steer manure compost at 224 kg total N ha−1 (compost). Research focused on the impact of these contrasting nitrogen sources on silage corn production, …
Determining The Sap Yield Of Three Maple Species And The Viability Of A Maple Syrup Industry In Northern Utah, Jesse Mathews
Determining The Sap Yield Of Three Maple Species And The Viability Of A Maple Syrup Industry In Northern Utah, Jesse Mathews
All Graduate Theses and Dissertations, Fall 2023 to Present
Maple syrup is an agricultural product produced from the sap exuded by maple trees. All maples can produce sap, and in Utah, the maples include the two native species bigtooth maple (Acer grandidentatum) and boxelder (Acer negundo), and the introduced species Norway maple (Acer platanoides). Little is known about the sap production of these species, and this research aims to examine the volume of sap yield and sugar content of these maples, evaluate the performance of bucket and tubing collection systems, and explore the potential economics of a maple industry in the state. Research …
Comparison Of Private And Public Lab Fertilizer Recommendation Impacts On Field Crop Production And Soil Test Results, Megan Baker
Comparison Of Private And Public Lab Fertilizer Recommendation Impacts On Field Crop Production And Soil Test Results, Megan Baker
All Graduate Theses and Dissertations, Fall 2023 to Present
There are many sources that farmers utilize to determine fertilizer needs for crops such as private and public labs, crop advisors, and fertilizer dealers. In many cases, these sources provide recommendations for a specific crop that can vary greatly, which can lead to large differences in cost. An experiment was established in 2021 with 12 sites across the state of Utah in alfalfa, small grains, and corn to test and compare fertilizer recommendations from five labs. The recommendations tested were from two public labs (Utah State University and the University of Idaho) and three commercial labs located in the Western …
Processes For Improved Variable Rate Irrigation And Nitrogen Within Potato-Wheat-Wheat Cropping Systems, Elisa A. Flint
Processes For Improved Variable Rate Irrigation And Nitrogen Within Potato-Wheat-Wheat Cropping Systems, Elisa A. Flint
All Graduate Theses and Dissertations, Fall 2023 to Present
Proper irrigation and nutrient management are vital for optimal crop production within agricultural fields. Improving irrigation and nutrient application through precision agriculture is necessary to conserve the limited resources available, while improving yield and quality of crops produced through such a system. Variable rate irrigation (VRI) and variable rate nitrogen are systems used to apply water and nitrogen more precisely to agricultural fields to reduce runoff, deep percolation, leaching, and other negative impacts of over application, while providing the optimal rates to produce maximum yields. However, the processes to utilize these systems have proven to be more difficult than expected, …
Simple Sprinkler Performance Testing For Rich County, Kelly Kopp, L. Neil Allen, Dallen Smith, Lauren Thomson
Simple Sprinkler Performance Testing For Rich County, Kelly Kopp, L. Neil Allen, Dallen Smith, Lauren Thomson
All Current Publications
This fact sheet describes how to perform a site inspection and a sprinkler test so you can irrigate your landscape more efficiently. It also provides an irrigation schedule for Rich County, Utah.
Utah Hydroponic Solutions, Bruce Bugbee, Noah Langenfeld
Utah Hydroponic Solutions, Bruce Bugbee, Noah Langenfeld
Nutrients
The Utah Hydroponic solutions for monocots and dicots have been developed and refined using mass balance principles coupled with tissue analysis from studies in 25-cm deep, continuously aerated, liquid hydroponics where there is no absorption or desorption with media.
These solutions provide guidelines for irrigation of soilless substrates, but adjustments may need to be made to account for the significant cation exchange capacity and thus nutrient absorption and desorption with the substrates.
These recipes were developed for greenhouse conditions with ambient CO2 and about 40% humidity. This results in a water use efficiency of about 3 grams per Liter. …
Native Wetland Plant Seed Collection And Cleaning Guide For The Intermountain West, Rae Robinson, Maddie Houde, Elana Feldman, Samantha R. Kurkowski, Nathan M. Crawford, Stephanie Aristizabal, Karin M. Kettenring
Native Wetland Plant Seed Collection And Cleaning Guide For The Intermountain West, Rae Robinson, Maddie Houde, Elana Feldman, Samantha R. Kurkowski, Nathan M. Crawford, Stephanie Aristizabal, Karin M. Kettenring
All Current Publications
Collecting and cleaning seeds from wildlands is an essential part of ecosystem restoration, management, and conservation. Here, we summarize best practices for native wetland plant seed collection and cleaning in the Intermountain West.
A companion guide on seed testing, "Seed Viability Testing Guide for Common Wetland Plant Species," is also available (https://digitalcommons.usu.edu/extension_curall/2389/).
Providing Pest Management Education For Home Gardeners In Utah, Nick Volesky, Marion Murray
Providing Pest Management Education For Home Gardeners In Utah, Nick Volesky, Marion Murray
Outcomes and Impact Quarterly
In January 2024, Utah State University (USU) Extension's Integrated Pest Management (IPM) program launched a three-part class series targeting Utah's home gardeners. The goal was to enhance their abilities in identifying and managing insect and plant diseases. With over 200 participants, the series notably increased the knowledge of attendees. This initiative aligns with the USU Extension IPM program's mission to promote sustainable pest management practices across Utah, evidencing its commitment to environmental stewardship and community education.
Commercially Available Products In Increase Soil Water-Holding Capacity, Shital Poudyal, Jake Powell, Rowe Zwahlen, Grant Cardon
Commercially Available Products In Increase Soil Water-Holding Capacity, Shital Poudyal, Jake Powell, Rowe Zwahlen, Grant Cardon
All Current Publications
Although adding organic matter is traditionally the most effective way to enhance soil water-holding capacity, several commercial products in the market also have the potential to increase soil water-holding capacity. In this fact sheet, we discuss the properties and characteristics of those commercially available products and recommended application rates. We also explore some limitations of using these products.
Seed Viability Testing Guide For Common Wetland Plant Species, Rae Robinson, Sandra E. Johnston, Elana Feldman, Maddie Houde, Samantha R. Kurkowski, Amanda Mast, Jes V. Braun, Karin M. Kettenring
Seed Viability Testing Guide For Common Wetland Plant Species, Rae Robinson, Sandra E. Johnston, Elana Feldman, Maddie Houde, Samantha R. Kurkowski, Amanda Mast, Jes V. Braun, Karin M. Kettenring
All Current Publications
Seeds are used in many aspects of plant research as well as in applications such as ecosystem restoration. However, not all seeds are living (i.e., viable). To successfully work with seeds, it is essential to know how many seeds are viable. Seed viability can be assessed through a few different avenues, such as a basic cut test (i.e., is the embryo fully developed), germination assays, x-ray imaging, or the most common—a tetrazolium (TZ) test. This document focuses on best practices for TZ testing for a wide array of common wetland species that have been the focus of research and restoration …
Pile Burning After Conifer Removal From Aspen Stands Affects Tree Mortality, Regeneration, And Understory Recovery, John-Pascal Berrill, Christa M. Dagley, Yoon G. Kim, J. Morgan Varner
Pile Burning After Conifer Removal From Aspen Stands Affects Tree Mortality, Regeneration, And Understory Recovery, John-Pascal Berrill, Christa M. Dagley, Yoon G. Kim, J. Morgan Varner
Aspen Bibliography
Quaking aspen (Populus tremuloides Michx.) stands throughout the western United States provide valuable ecosystem services but can be lost via succession from aspen to conifer. Forest managers are cutting conifers, but disposal of cut wood can be challenging in remote or sensitive areas. Piling and burning is being tested within aspen stands but ecosystem responses to this treatment are understudied. We assessed aspen tree mortality, tree regeneration, and understory vegetation after forest restoration thinning followed by pile burning in seven aspen-conifer stands around Lake Tahoe, California and Nevada, USA. Pile burning was conducted after cut wood had dried (1.5–7.5 …
Aspen And Spruce Densities Affect Tree Size, Future Stand Volume, And Aboveground Carbon Following Precommercial Thinning, Philip G. Comeau, Mike Bokalo
Aspen And Spruce Densities Affect Tree Size, Future Stand Volume, And Aboveground Carbon Following Precommercial Thinning, Philip G. Comeau, Mike Bokalo
Aspen Bibliography
Data collected over a 30-year period from an experiment replicated across 21 locations in western Canada are used to explore the effects of precommercial thinning of trembling aspen to a range of densities in combination with three initial white spruce densities on tree growth and stand dynamics. Increasing differentiation amongst the 15 treatments was observed with age after thinning for both spruce and aspen responses. Spruce height and diameter declined with increasing aspen density. At age 10 spruce diameter with no aspen was 1.5× that of spruce in unthinned while it was 2.6× that of spruce in unthinned at age …
Cosmos For Cut Flower Production In Utah, Ali Harrison, Melanie Stock, Lorin Harrison, Amanda Pratt, Olive Stewart, Claudia Nischwitz, Nick Volesky
Cosmos For Cut Flower Production In Utah, Ali Harrison, Melanie Stock, Lorin Harrison, Amanda Pratt, Olive Stewart, Claudia Nischwitz, Nick Volesky
All Current Publications
Cosmos are one of the easiest and most productive cut flowers to grow. As a warm-season annual, blooms are prolific and continued, making cosmos a staple, cut-and-come-again flower. The plants tolerate low water conditions, poor soil, and low maintenance, and perform better in fields than high tunnels. Available in shades ranging from whites and blushes to cranberry and orange, cosmos provide popular colors and airy textures for floral design work, particularly in late summer weddings and events.
Aversion Properties Of Retrorsine, Retrorsine Nitrogen Oxide And Frosted Senecio Latifolius, Leendert D. Snyman
Aversion Properties Of Retrorsine, Retrorsine Nitrogen Oxide And Frosted Senecio Latifolius, Leendert D. Snyman
Poisonous Plant Research (PPR)
Two pilot trials, investigating the aversive properties of retrorsine and retrorsine nitrogen oxide and that of frosted Senecio latifolius, were executed. Retrorsine and retrorsine-NO (the toxic principles of Senecio retrorsus), unlke sceleratine-NO (the toxic principle of another hepatotoxic pyrrolizidine alkaloid containing plant, namely S. latifolius), were not capable of establishing aversion when given to a sheep. Frosted S. latifolius given to a sheep also did not induce aversion. However, a sheep averted to S. latifolius (non-frosted) refused eating frosted S. latifolius.
Sceleratin Nitrogen Oxide As Aversive Agent In Conditioning Livestock To Avoid Senecio Latifolius, Leendert D. Snyman
Sceleratin Nitrogen Oxide As Aversive Agent In Conditioning Livestock To Avoid Senecio Latifolius, Leendert D. Snyman
Poisonous Plant Research (PPR)
Sceleratine nitrogen oxide, when administered together with a dichloromethane extract of Senecio latifolius, successfully conditioned cattle and sheep to avoid milled freeze dried S. latifolius mixed with maize meal. This treatment was effectively applied in conditioning steers to refuse eating S. latifolius grown in pots.
Understanding Cut Flower Consumers, Makaylie Langford, Kynda R. Curtis, Melanie Stock
Understanding Cut Flower Consumers, Makaylie Langford, Kynda R. Curtis, Melanie Stock
All Current Publications
This fact sheet provides information on cut flower consumers, such as floral preferences and consumer demographics and psychographics. It discusses possible ways to enhance perceived value and interest in cut flowers.
An Overview Of The Cut Flower Industry, Makaylie Langford, Kynda R. Curtis, Melanie Stock
An Overview Of The Cut Flower Industry, Makaylie Langford, Kynda R. Curtis, Melanie Stock
All Current Publications
This fact sheet provides an overview of the cut flower industry. It provides information about traditional and specialty cut flowers, comparing flowers sourced locally in Utah and internationally.
Cut Flower Markets And Marketing In The Intermountain West, Makylie Langford, Kynda R. Curtis, Melanie Stock
Cut Flower Markets And Marketing In The Intermountain West, Makylie Langford, Kynda R. Curtis, Melanie Stock
All Current Publications
This fact sheet discusses different markets for cut flowers in the Intermountain West, including wholesale and direct-to-consumer markets. Farmers markets, community-supported agriculture and subscription services, u-pick operations, farm venues, and online options are explored, as well as using social media to advertise and build clientele.
Isolation Of The Toxic Principle Of Senecio Latifolius By Means Of The Sensory Receptors Of Sheep, Leendert D. Snyman
Isolation Of The Toxic Principle Of Senecio Latifolius By Means Of The Sensory Receptors Of Sheep, Leendert D. Snyman
Poisonous Plant Research (PPR)
The aversive substance of Senecio latifolius was isolated by means of the sensory receptors of sheep averted to S. latifolius. Chemical fractions refused due to the presence of the aversive substance sensed by the sheep were fractionated until a purified substance had been isolated. Nuclear magnetic resonance (NMR) analysis of the purified substance showed it to be sceleratine nitrogen oxide, the toxic principle of S. latifolius.
Reducing Inputs And Adding Value To Turfgrass Systems Through Clover Inclusion And Plant Growth-Promoting Rhizobacteria Applications, Paige E. Boyle
Reducing Inputs And Adding Value To Turfgrass Systems Through Clover Inclusion And Plant Growth-Promoting Rhizobacteria Applications, Paige E. Boyle
All Graduate Theses and Dissertations, Fall 2023 to Present
Recently, the US has seen an expansion in the amount of turfgrass land cover (lawns, parks, roadsides, sports fields, and golf courses), as well as an interest in reducing fertilizer, water, and pesticide use in these grass systems. To help maintain quality and function while reducing resource inputs, two promising approaches have emerged: planting clover into lawns and applying plant growth-promoting rhizobacteria.
White clover and grass mixtures have been studied for their ability to cut down on fertilizer usage and provide a uniform, dark green lawn, but other clover types have not been as widely studied and may provide similar …
Ecology And Management Of Dyer's Woad (Isatis Tinctoria) In Northern Utah, Erin Marie Hettinger
Ecology And Management Of Dyer's Woad (Isatis Tinctoria) In Northern Utah, Erin Marie Hettinger
All Graduate Theses and Dissertations, Fall 2023 to Present
Dyer’s woad (Isatis tinctoria L.) is a non-native forb that continues to threaten natural areas throughout Northern Utah and much of the Intermountain West. Once introduced, dyer’s woad can become extremely invasive, decreasing forage quality, and displacing native species. While dyer’s woad is found throughout much of Northern Utah, its range in other states remains limited. If promptly managed, control success in these areas will be much higher and populations may be kept at bay before ecological damage becomes severe.
This project tested the ability of dyer’s woad seedlings to compete with common rangeland grasslands at varied densities as …
Furthering Indaziflam-Based Management Strategies Of Three Invasive Annual Grasses In Northern Utah, Peter Weston Maughan
Furthering Indaziflam-Based Management Strategies Of Three Invasive Annual Grasses In Northern Utah, Peter Weston Maughan
All Graduate Theses and Dissertations, Fall 2023 to Present
Indaziflam is an herbicide highly recognized for its potential to effectively control weedy, winter germinating grasses, such as downy brome, as the herbicides prevents seed germination for several years. Unfortunately, most of these studies only capture the first 2-3 years of indaziflam’s 3-5 years soil activity. This thesis sought to better understand indaziflam’s long-term effects by monitoring both a healthy ecosystem and a degraded ecosystem for up to 5 years after indaziflam application. A secondary study was also conducted to better understand the potential of revegetation via reseeding in indaziflam treated soils. The study concluded that indaziflam very little long-term …