Pando: Charismatic Megaflora And The Populus Paradox, 2021 Utah State University
Pando: Charismatic Megaflora And The Populus Paradox, Paul C. Rogers, Lance Oditt
Within the field of landscape ecology, the Pando aspen grove on the Fishlake National Forest of Utah is legendary—and it is in danger of dying from hotter, drier temperatures and other threats. Pando is one of the largest and oldest known still-living organisms on Earth. Quaking aspen are an important tree species in Greater Yellowstone and the Rocky Mountain West. Enjoy this essay written by a scientist who studies Pando and a photographer who celebrates this arboreal mega-being.
Goatsrue (Galega Officinalis) Identification And Management In Pastures And Croplands, 2021 Utah state University
Goatsrue (Galega Officinalis) Identification And Management In Pastures And Croplands, Jacob Hadfield, Corey Ransom, Cody Zesiger, Clark Israelsen
All Current Publications
Goatsrue is an aggressive invasive plant and a declared Utah state noxious weed (Category 1B). It was introduced into the Cache Valley in 1891 and spread through the irrigation canals, streams, and rivers of the Bear River drainage. Cache County has one of the largest goatsrue infestations in the nation. Luckily, only small infestations are found in neighboring counties (Box Elder, Rich, Weber, and Davis). Goatsrue’s rapid growth, prolific seed production, and ability to spread quickly through waterways make it a problem and concern for many residents of Cache County. Properly identifying and managing goatsrue can help reduce the ...
Interdisciplinary Strategies To Enable Data-Driven Plant Breeding In A Changing Climate, 2021 Iowa State University
Interdisciplinary Strategies To Enable Data-Driven Plant Breeding In A Changing Climate, Aaron Kusmec, Zihao Zheng, Sotirios Archontoulis, Baskar Ganapathysubramanian, Guiping Hu, Lizhi Wang, Jianming Yu, Patrick S. Schnable
Mechanical Engineering Publications
This perspective lays out a framework to enable the breeding of crops that can meet worldwide demand under the challenges of global climate change. Past work in various fields has produced multiple prediction methods to contribute to different plant breeding objectives. Our proposed framework focuses on the integration of these methods into decision-support tools that quantify the effects on multiple objectives of decisions made throughout the plant breeding pipeline. We discuss the complementarities among these methods with an emphasis on integration into tools that utilize operations research and systems approaches to help plant breeders rapidly and optimally design new cultivars ...
Mitigation Of Airborne Prrsv Transmission With Uv Light Treatment: Proof-Of-Concept, 2021 Iowa State University
Mitigation Of Airborne Prrsv Transmission With Uv Light Treatment: Proof-Of-Concept, Peiyang Li, Jacek A. Koziel, Jeffrey J. Zimmerman, Jianqiang Zhang, Ting-Yu Cheng, Wannarat Yim-Im, William S. Jenks, Myeongseong Lee, Baitong Chen, Steven J. Hoff
Agricultural and Biosystems Engineering Publications
Proper treatment of infectious air could potentially mitigate the spread of airborne viruses such as porcine reproductive and respiratory syndrome virus (PRRSV). The objective of this research is to test the effectiveness of ultraviolet (UV) in inactivating aerosolized PRRSV, specifically, four UV lamps, UV-A (365 nm, both fluorescent and LED-based), “excimer” UV-C (222 nm), and germicidal UV-C (254 nm), were tested. The two UV-C lamps effectively irradiated fast-moving PRRSV aerosols with short treatment times (<2 s). One-stage and two-stage UV inactivation models estimated the UV doses needed for target percentage (%) reductions on PRRSV titer. UV-C (254 nm) dose needed for 3-log (99.9%) reduction was 0.521 and 0.0943 mJ/cm2, respectively, based on one-stage and two-stage models. An order of magnitude lower UV-C (222 nm) doses were needed for a 3-log reduction, i.e., 0 ...2>
The Impact Of China’S Environmental And Trade Policies On U.S. Plastic And Paper Waste Exports, 2021 University of Nebraska-Lincoln
The Impact Of China’S Environmental And Trade Policies On U.S. Plastic And Paper Waste Exports, Savant Nzayiramya, John C. Beghin
This article documents major environmental and trade policy changes in China and their impact on plastic and paper waste trade between the U.S. and China and other trade partners. The article explains how U.S. plastic waste exports have been nearly annihilated by these policies. Paper waste trade is more resilient and has survived the policy shifts in China, although quite diminished.
Pie/Decorative Pumpkin Cultivar Evaluation, 2021 University of Kentucky
Pie/Decorative Pumpkin Cultivar Evaluation, Chris Smigell, John Strang, John Snyder, Emily Pfeufer, Bob Perry, Emily Dewitt
Midwest Vegetable Trial Reports
Fourteen pie and decorative pumpkin cultivars were evaluated in a replicated trial to determine their performance under Central Kentucky growing conditions. Plants were grown using standard commercial growing practices, using raised beds with trickle tube irrigation and fertigation, and covered with black plastic film. Fungicides and insecticides were applied following University of Kentucky Extension guidelines. Yields per-acre, fruit dimensions, weights and sugar contents were measured. Cultivars were also evaluated for visual attributes, such as size- and color uniformity and stem attractivness. Bisbee Gold’, ‘Baby Wrinkles’, ‘Darling’, ‘Fall Splendor Plus’, ‘Jack Sprat’, ‘Little Giant’ and ‘Cinnamon Girl’ were the best overall ...
Vaginal Microbiome And Serum Metabolite Differences In Late Gestation Commercial Sows At Risk For Pelvic Organ Prolapse, Zoë E. Kiefer, Lucas R. Koester, Lucas Showman, Jamie M. Studer, Amanda L. Chipman, Aileen F. Keating, Stephan Schmitz-Esser, Jason W. Ross
Animal Science Publications
Sow mortality attributable to pelvic organ prolapse (POP) has increased in the U.S. swine industry and continues to worsen. Two main objectives of this study were, (1) to develop a perineal scoring system that can be correlated with POP risk, and (2) identify POP risk-associated biological factors. To assess POP risk during late gestation, sows (n = 213) were scored using a newly developed perineal scoring (PS) system. Sows scored as PS1 (low), PS2 (moderate), or PS3 (high) based on POP risk. Subsequently, 1.5, 0.8, and 23.1% of sows scored PS1, PS2, or PS3, respectively, experienced POP ...
Disproportionate Ch4 Sink Strength From An Endemic, Sub-Alpine Australian Soil Microbial Community, 2021 Iowa State University
Disproportionate Ch4 Sink Strength From An Endemic, Sub-Alpine Australian Soil Microbial Community, Marshall D. Mcdaniel, Marcela Hernández, Marc G. Dumont, Lachlan J. Ingram, Mark A. Adams
Soil-to-atmosphere methane (CH4) fluxes are dependent on opposing microbial processes of production and consumption. Here we use a soil–vegetation gradient in an Australian sub-alpine ecosystem to examine links between composition of soil microbial communities, and the fluxes of greenhouse gases they regulate. For each soil/vegetation type (forest, grassland, and bog), we measured carbon dioxide (CO2) and CH4 fluxes and their production/consumption at 5 cm intervals to a depth of 30 cm. All soils were sources of CO2, ranging from 49 to 93 mg CO2 m−2 h−1. Forest soils were strong ...
Distribution Pattern And Phytosociological Study Of Trees Associated With Agroforestry In Poonch District Of Jammu And Kashmir, India, 2021 Govt Degree College Mendhar, Jammu and Kashmir
Distribution Pattern And Phytosociological Study Of Trees Associated With Agroforestry In Poonch District Of Jammu And Kashmir, India, Javed Manzoor, Mohd Junaid Jazib
Journal of Bioresource Management
The focus of present study was to find the phytosociology, distribution pattern, and diversity of different species of trees associated with traditional agroforestry in the district of Poonch, Jammu and Kashmir, India. Data was collected through quadrat survey method. A total of fifty quadrats of the size (10x10m) each were thrown randomly in agriculture fields. Total 26 tree species belonging to 16 families and 21 genera were encountered in the agricultural fields with Grewia optiva, Pyrus persica and Celtis australis being the tree species in dominance. The most dense species of tree recorded was Grewia optiva with a density value ...
Impact Of Wastewater And Canal Water Irrigation On The Accumulation Of Copper In Maize And Millet Of Different Districts Of Punjab Pakistan, 2021 Department of Botany, University of Sargodha, Sargodha
Impact Of Wastewater And Canal Water Irrigation On The Accumulation Of Copper In Maize And Millet Of Different Districts Of Punjab Pakistan, Ifra Saleem Malik, Zafar Iqbal Khan, Kafeel Ahmad, Humayun Bashir, Asma Ashfaq, Mudasra Munir, Sobia Fiaz
Journal of Bioresource Management
In current work, we examined the absorption of metal Copper in generally grown food crops (Maize & Millet), cultivated in the waste water irrigated different Districts of Punjab, Pakistan. Analyzed samples of Water, Soil, shoot and grain were processed through atomic absorption spectrometric method. Our findings of Copper in water and Shoot were highest for Millet of Sargodha, irrigated with wastewater (1.69 mg/kg and 1.43 mg/kg respectively). In soil and grain samples maximum absorption of Cu was obtained in the waste water irrigated Maize (Sargodha) and Millet (Sheikhupura). Overall, Cu level was within the acceptable parameters set ...
Diagnostic Walkabouts: Seventeen Years Of Specialized Training For Horticultural Professionals, 2021 The Ohio State University
Diagnostic Walkabouts: Seventeen Years Of Specialized Training For Horticultural Professionals, Timothy J. Malinich, Jacqueline Kowalski, Charles Behnke
Journal of Extension
A diagnostic walkabout (DW) is an in-field diagnostic training program for professionals in the green industry (greenhouse, landscape, nursery, and turf businesses). DWs have been scheduled annually since 2002 and are easily replicable, fee-based programs that provide cost recovery. DWs also serve as a mentoring program for new Extension educators. Four generations of Extension Educators have participated. Recently, the annual program has been sponsored by state and regional trade associations. What began as an educational outreach program has become a bridge spanning Extension, trade associations, businesses, and generations of Extension educators.
The Impact Of Covid-19 And Economic Policies On Nebraska Farm Real Estate In 2021, 2021 University of Nebraska-Lincoln
The Impact Of Covid-19 And Economic Policies On Nebraska Farm Real Estate In 2021, Jim Jansen, Jeff Stokes
Land industry professionals responding to the annual survey attributed the rise in Nebraska farm real estate values to current interest rate levels, crop prices, and COVID-19 disaster assistance payments provided to operators across the state. These forces substantially impacted farm and ranch finances across Nebraska. Operators faced an exceptional amount of risk and uncertainty when navigating production decisions during the height of the COVID-19 pandemic. Lower interest rates and disaster assistance payments provided stability to an industry facing an unpreceded economic shutdown and disruptions of supply chains.
Effect Of Temperature Sensor Numbers And Placement On Aeration Cooling Of A Stored Grain Mass Using A 3d Finite Element Model, 2021 United States Department of Agriculture
Effect Of Temperature Sensor Numbers And Placement On Aeration Cooling Of A Stored Grain Mass Using A 3d Finite Element Model, Benjamin Plumier, Dirk Maier
Agricultural and Biosystems Engineering Publications
Grain stored in silos in the United States of America is generally cooled with an aeration system to limit mold spoilage and insect infestation. Monitoring efficacy of aeration and real-time conditions of stored grain is generally done using temperature cables with fixed-spaced sensor locations that are hung from the roof of the silo. Numerous placement options exist in terms of the number of cables and their positions. However, little investigation has been done into the effects of cable placement on aeration system operation decisions and real-time monitoring of stored grain conditions. For a one-year period, the temperatures predicted by sensors ...
The Sociology Of Food And Eating, 2021 University of Washington Tacoma
The Sociology Of Food And Eating, Deyana Marie Pangelinan
Sociology Student Work Collection
Food is an important aspect of our lives as it is a basic human necessity and it is intriguing to see how the culture of food is influenced sociologically. For the final project, I focused on the Sociology of Food and Eating in the U.S. by discussing three different aspects which are how the food is made, distributed, and consumed. More specifically, I analyzed the politics of pesticides, how class inequality affects food distribution, and why the U.S. enjoys larger serving sizes.
Squash Bug Integrated Pest Management, 2021 Utah State University
Squash Bug Integrated Pest Management, Nick Volesky, Mair Murray
All Current Publications
This infographic reviews integrated pest management for squash bugs. It includes information on the following: resistant varieties of vegetables to plant and crop rotation, homemade traps, mechanical destruction, mulches, trap crops, natural enemies, and organic and synthetic insecticides.
Irrigation Management In High Tunnels, 2021 Utah State University
Irrigation Management In High Tunnels, Dan Drost, Brent Black, Melanie Stock
All Current Publications
High tunnels provide season extension for various high-value horticulture crops in a diverse range of climates. These large, plastic-covered structures modify the environmental conditions of the covered area. Temperature management is commonly the focus when growing in high tunnels as this may be the key factor limiting plant growth during much of the year. While high tunnel temperature management is important, growers also need to address water management to ensure plants are not water-stressed. Common mistakes are underestimating water needs, which stresses plants or creates conditions favoring plant diseases and nutrient leaching from overwatering. Knowing when to irrigate and how ...
Irrigation In Agriculture: A Driver Of Social Differentiation And An Empowering Livelihood Option For Rural Women, 2021 Independent Gender and Water Adviser
Irrigation In Agriculture: A Driver Of Social Differentiation And An Empowering Livelihood Option For Rural Women, Laura Imburgia, Henny Osbahr, Sarah Cardey, Janet Momsen
wH2O: The Journal of Gender and Water
This paper presents empirical evidence on issues of gender roles, agricultural livelihoods, and social differentiation in communal small-scale irrigation studied in Ethiopia and Argentina. Findings revealed that irrespective of the cultural setting, many women in irrigation remain constrained by structural inequalities regarding access to secure, reliable and affordable irrigation water. These constraints are driven by entrenched power dynamics, social relations and wealth handicaps. These findings contrast with long-standing efforts to devise agricultural policies aimed at reducing gender asymmetries and improving conditions for women in agriculture. In this paper, the case for strengthening irrigation as an empowering livelihood option for rural ...
A Microbiome Engineering Framework To Evaluate Rhizobial Symbionts Of Legumes, 2021 Chapman University
A Microbiome Engineering Framework To Evaluate Rhizobial Symbionts Of Legumes, Kenjiro W. Quides, Hagop S. Atamian
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
For well over a century, rhizobia have been recognized as effective biofertilizer options for legume crops. This has led to the widespread use of rhizobial inoculants in agricultural systems, but a recurring issue has emerged: applied rhizobia struggle to provide growth benefits to legume crops. This has largely been attributed to the presence of soil rhizobia and has been termed the ‘rhizobial competition problem.’
Microbiome engineering has emerged as a methodology to circumvent the rhizobial competition problem by creating legume microbiomes that do not require exogenous rhizobia. However, we highlight an alternative implementation of microbiome engineering that focuses ...
Weather And Climate Summary And Forecast: March 2021 Report, 2021 Linfield University
Weather And Climate Summary And Forecast: March 2021 Report, Gregory V. Jones
Linfield University Wine Studies Reports
This report provides a summary of the weather and climate forecast for March 2021. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.
Community Supported Enterprises – Preparing For The Future, 2021 University of Nebraska-Lincoln
Community Supported Enterprises – Preparing For The Future, Charlotte Narjes
The Bayard Grocery store made headline news in Nebraska the end of January with the announcement of its upcoming closure. Unfortunately, a grocery store closing is not uncommon in Nebraska or across the United States. A North Dakota study from the state’s association of rural electric cooperatives in 2017 found that in communities with 2,100 people or fewer, there are 98 full-service grocery stores, down from 137 in 2014. In addition, A PEW Trusts article in October 2019, further addresses the nationwide challenge of rural grocery store closures. Challenges include decreased population, competition from superstores (i.e., Walmart ...