Agriculture Commons^™

The Coming Global Food Crisis, E. Wesley F. Peterson

Cornhusker Economics

Inflation driven by rising prices for food, energy, and other consumer goods has become a major concern in the United States and other high-income countries. A far more serious issue is the effect of rising food prices on low-income households in many developing countries in Africa, Asia, and Latin America. Global food prices had been rising in 2020 and 2021 as a result of supply shortages caused by adverse weather conditions exacerbated by climate change, war and civil strife in various countries, and economic shocks in the aftermath of the Covid-19 pandemic and the consequent disruption of global supply chains ...

Market Pressure Based On International Food Standards In Export-Scale Urban Farming: Political Ecology Perspective, Kinanti Indah Safitri, Oekan Soekotjo Abdoellah, Budhi Gunawan, Yusep Suparman, Parikesit Parikesit

The Qualitative Report

Urban farming has been transformed into urban agricultural activities oriented towards optimizing economic benefits through export market involvement. However, the expansion of the market has consequences for farmers. The involvement of urban farmers in export trade causes market pressures that affect agricultural production practices. This research used qualitative research methods. There were 27 informants in this study. Researchers collected data to determine market pressures faced by export-scale urban farmers in Bandung Metropolitan. Data collection techniques used in-depth interviews, observation, and documentation. The results showed that the market had put pressure on export-scale urban farmers in Bandung Metropolitan to meet international ...

Effect Of Mycorrhizae Inoculation On The Growth And Success Of Three Taxodium Distichum Hybrids In Saline - Impacted Coastal Soils, Elif Ilhan

Electronic Theses and Dissertations

In 2008, Galveston Island was severely impacted by Hurricane Ike, resulting in high salt deposition in the soil and groundwater. This caused a loss of many native plant species. A study was initiated to determine effective ways to promote the growth conditions of three bald cypress genotypes (Taxodium distichum var distichum and Taxodium distichum var mexicanum crosses) in salt-affected soils. The treatments applied were mycorrhizae inoculation, fertilizer application, and a combination of mycorrhizae inoculation and fertilizer application. A total of sixty (60) trees planted in plots of three rows and divided into five randomized replication blocks of four treatments each ...

Blue Zones: Unlocking Key Themes In The Centenarian's Life, Grace Beer, Grace O. Beer

Honors College Theses

Longevity has been sought after in certain areas of the world, and there are specific regions where this has been achieved. There is an American average life expectancy of 72 years old, but individuals in “Blue Zones” here in America and other areas of the world are expected to and have proven to live well beyond 100. The areas of Okinawa, Sardinia, Nicoya, Ikaria, and Loma Linda are classified as Blue Zones, and there could be more of an understanding of how these people live the way they do to have such healthy physical outcomes. To deeply understand the strategy ...

Are You Paid For Your Hard Red Winter Wheat Quality? Yes, But Indirectly., Shane Roberts, Kate Brooks, Lia Nogueira, Cory Walters

Cornhusker Economics

Hard red winter wheat (HRWW) is the largest wheat class grown in the United States, with approximately 660 million bushels produced in 2020, representing about 36% of total U.S. wheat production (USDA ERS 2021). The world market is an important destination for U.S. HRWW. In 2020, exports of U.S. HRWW represented 52% of U.S. production and total U.S. wheat exports represented 13% of total world exports (USDA ERS 2021). U.S. HRWW differs from other wheat classes based on physical characteristics such as color, kernel hardness and planting season as well as consistency in producing ...

Utah Farmers Market Network: Diversity, Equity, And Inclusion Community Of Practice, Jaclyn Pace, Regan Emmons, Kelsey Hall, Celina Wille, Lacee Jimenez, Carrie Durward, Roslynn Mccann

All Current Publications

The Utah Farmers Market Network convened a virtual Diversity, Equity, and Inclusion (DEI) Community of Practice (CoP) to explore how markets could be more welcoming and inclusive to historically excluded populations. Between May and November of 2021, members of seven Utah farmers markets convened at least twice monthly to explore basic DEI concepts and create personalized DEI strategic plans for their markets. This document reviews impacts on participants and the personal, market, community, and organizational goals created.

Utah Farmers Market Snap Toolkit, Regan Emmons, Bridget Stuchly, Gina Cornia

All Current Publications

Utah State University Extension provides research-based programs and resources with the goal of improving the lives of individuals, families and communities throughout Utah. USU Extension manages Create Better Health, Utah’s Supplemental Nutrition Assistance Education Program (known as SNAP-Ed), and provides nutrition education and obesity prevention services to SNAP recipients and other eligible low-income individuals. Create Better Health (SNAP-Ed) offers a variety of classes to expand participants’ knowledge of nutrition, budgeting, cooking, food safety, and physical activity. This toolkit outlines how farmers markets can implement a SNAP program and help combat food insecurity in their communities.

First Line Of Defense: Role Of Surface Waxes In Sorghum Defense Against Aphids, Juan David Betancurt Cardona

Dissertations and Student Research in Entomology

Since 2013, the sugarcane aphid (SCA; Melanaphis sacchari) has become a devastating pest in sorghum (Sorghum bicolor) in the United States. Efforts to mitigate this pest and contain its rapid population growth have increased recently. Host plant resistance (HPR) is an effective and environmentally friendly strategy to reduce aphid populations in this crop. Many factors make SCA a challenging pest to control. For example, SCA can overcome drastic climatic changes, which allows them to successfully colonize sorghum plants at different developmental stages.

Epicuticular waxes (EW) constitute the first point of contact between plants and their environment. EW differ in their ...

Interactions Between Resistance Genes In Wheat Triticum Aestivum L. And Wheat Curl Mite Populations Aceria Tosichella Keifer (Eriophyidae), Tran Kim Ngan Luong

Dissertations and Student Research in Entomology

Wheat curl mite (WCM) (Aceria tosichella Keifer) is a major pest of winter wheat (Triticum aestivum L.), being the only known vector of three damaging plant viruses, Wheat streak mosaic virus, Triticum mosaic virus, and High Plains wheat mosaic virus. This wheat-mite-virus complex causes significant yield loss globally. Management has been mostly through cultural practices to reduce mite build up in volunteer wheat, thereby reducing the spread of viruses. Host plant resistance to WCM has also been used as an important management strategy for this wheat-mite-virus complex. However, WCM is a cryptic species complex, resulting in great variability in WCM ...

Lawrence Kaplan (14 April 1926-6 March 1918), Emily Kaplan

Andean Past

This is an appreciation of the life and work of archaeobotanist Lawrence Kaplan, a specialist in domesticated beans.

Linking Soil Microbial Community Structure To Potential Carbon Mineralization: A Continental Scale Assessment Of Reduced Tillage, Elizabeth L. Rieke, Shannon B. Cappellazzi, Michael Cope, Daniel Liptzin, G. Mac Bean, Kelsey L.H. Greub, Charlotte E. Norris, Paul W. Tracy, Ezra Aberle, Amanda Ashworth, Oscar Bañuelos Tavarez, Andy I. Bary, R. L. Baumhardt, Alberto Borbón Gracia, Daniel C. Brainard, Jameson R. Brennan, Dolores Briones Reyes, Darren Bruhjell, Cameron N. Carlyle, James J.W. Crawford, Cody F. Creech, Steve W. Culman, Bill Deen, Curtis J. Dell, Justin D. Derner, Thomas F. Ducey, Sjoerd W. Duiker, Miles F. Dyck, Benjamin H. Ellert, Avelino Espinosa Solorio, Steven J. Fonte, Simon Fonteyne, Ann Marie Fortuna, Jamie L. Foster, Lisa M. Fultz, Audrey V. Gamble, Charles M. Geddes, Deirdre Griffin-Lahue, John H. Grove, Stephen K. Hamilton

Publications from USDA-ARS / UNL Faculty

Potential carbon mineralization (Cmin) is a commonly used indicator of soil health, with greater Cmin values interpreted as healthier soil. While Cmin values are typically greater in agricultural soils managed with minimal physical disturbance, the mechanisms driving the increases remain poorly understood. This study assessed bacterial and archaeal community structure and potential microbial drivers of Cmin in soils maintained under various degrees of physical disturbance. Potential carbon mineralization, 16S rRNA sequences, and soil characterization data were collected as part of the North American Project to Evaluate Soil Health Measurements (NAPESHM). Results showed that type of cropping system, intensity of physical ...

Wayne E. Sabbe Arkansas Soil Fertility Studies 2021, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.

The Exploration Of Undergraduate Attitudes And Knowledge About International Agricultural Issues And Us Agricultural Policy, Caitlin Bletscher, Megan Gould, Shuyang Qu

Journal of International Agricultural and Extension Education

In today’s globalized world, educators and employers generally agree on the necessity for undergraduate agricultural [ag] students to develop a sound understanding of global ag issues and policy. Because of this, many U.S. universities have promoted internationalizing curriculum and increased international study abroad experiences. However, few studies have examined the impact of international experiences on students’ knowledge and attitudes about international ag issues and policies. This study bridges this gap by identifying the relationship between student knowledge and attitude toward international ag issues and U.S. ag policy, and how international experience and demographic variables play a role ...

Building Global Leaders Through Field Research And Extension Experiences In Belize, Tom Gill, Adam S. Willcox

Journal of International Agricultural and Extension Education

One of the most complex agricultural and natural resources challenges of our time is reconciling sustainable global food security and biodiversity conservation. Providing undergraduate students effective, learning experiences to develop technical and cultural competency prepares them to address this challenge and become global leaders in their disciplines. A three-year experiential research and extension project brought together 14 students and 10 faculty mentors to investigate smallholder farmers practicing conservation-compatible adjacent to the Vaca Forest Reserve in Belize. We used an agroecological approach to foster systems-level thinking and develop transdisciplinary skills of undergraduate students. Students completed applied individual research projects that explored ...

Land Rich, Cash Poor: Hispanic Subsistence Agri-Culture On Acequia Farms Of Northern New Mexico, 1880-1950s, José A. Rivera Ph.D.

Faculty Publications

Acequia-based agriculture in Hispanic northern New Mexico originated with the arrival of settlers from the central valley of Mexico in the late sixteenth century and later following the Camino Real into the upper Río Grande and its tributaries. The high desert environment required irrigation for food production and survival. Land parcels in the rural villages of northern New Mexico were small, and crop yields were limited to home consumption on a subsistence basis, an economy that lasted well into the territorial period and statehood of New Mexico. Despite a wage economy introduced with the arrival of the railroad around 1880 ...

Commodity Marketing For High School Students, Fabio Mattos

Cornhusker Economics

Agricultural commodities play a major role in Nebraska’s economy and are central to the life of many families in the state. Learning the main concepts of commodity marketing becomes essential for young Nebraskans considering careers in the agricultural industry or in farming. Therefore, in the last 10 years, the Department of Agricultural Economics has been expanding its curriculum in commodity marketing and merchandising, as has already been discussed in this space a few years ago (“Commodity Trading Room Comes Online at UNL,” 6/29/2016).

Following the same ideas, we are now expanding our efforts to offer a program ...

Unraveling The Genetic Architecture Of Somatic Embryogenesis In Upland Cotton, Adam M. Canal

All Theses

Somatic embryogenesis is the de novo development of asexual embryos because of the plasticity of the plant cell. In tissue culture, the biochemical and genetic mechanisms of dedifferentiated callus tissues can be reprogrammed to transdifferentiate into developed, polarized embryos, which can ultimately regenerate into whole plants. Although this rarely occurs in nature, scientists have exploited this process for decades to regenerate whole plants following gene transformation or for micropropagation. While some species are amenable to in vitro regeneration, upland cotton is particularly recalcitrant, with regenerative potential being confined to only several genotypes. The lack of elite, regenerable genotypes greatly restricts ...

Cucurbit Downy Mildew Of Melon: Pathogen Diversity And Host Resistance, Sean Toporek

All Dissertations

Cucurbit downy mildew (CDM), caused by Pseudoperonospora cubensis, is a major constraint on melon (Cucumis melo) production in the eastern United States, but P. cubensis populations infecting C. melo are not well characterized. Between 2019 and 2021, 248 P. cubensis isolates were collected from cultivars Halona and Hale’s Best Jumbo in ten states. Isolates were genotyped with nine microsatellites, and mating type and clade were determined. All isolates displayed an inverse mating type / clade relationship: 90.3% and 9.7% of the isolates were mating type A1 / Clade 2 and mating type A2 / Clade 1, respectively. Both types of ...

Pasture Biomass Estimation Using Crop Surface Modeling And Vegetation Indices, Brendan Macinnis

All Theses

Biomass estimations are a critical function of any grazing or haylage system. Determination of ideal harvesting or grazing times help optimize the quality and quantity of above-ground biomass (AGB). The objective of this study was to evaluate the use of unmanned aerial vehicles (UAVs) for Alfalfa and Tall Fescue biomass estimations. Using a DJI Mavic Pro, RGB and NDVI images were taken and used to create orthomosaic images. Structure-from-motion (SfM) techniques were used to developed digital elevation models to evaluate the change in canopy height (∆H) between pre- and post-harvests. Change in canopy height (∆H) was shown to provide the ...

Poa Annua: An Annual Species?, Devon E. Carroll

Doctoral Dissertations

Poa annua L. is ranked the most troublesome turfgrass weed but can also be a highly desirable turfgrass species. As the Latin name annua implies, the species is thought to persist via an annual life cycle; yet there are many reports in literature of P. annua persisting perennially. Considering that P. annua senescence patterns do not align with other true annual species such as Triticum spp. and Zea mays L., we hypothesized that P. annua presents itself similarly to other perennial, cool-season, turfgrass species that are subject to a confluence of environmental factors in summer that can cause mortality. Four ...