Agriculture Commons^™

2023 Personal-Sized Seedless Watermelon Cultivar Evaluation In Indiana, Wenjing Guan, Dennis Nowaskie

Midwest Vegetable Trial Reports

Indiana ranks sixth in watermelon production in the U.S., following Florida, Georgia, Texas, California, and North Carolina in 2022. A total of 7,000 acres of watermelons were planted, with a production value of $71 million (USDA, 2023). Watermelons grown in Indiana are primarily red flesh seedless, and around 10% are personal-sized seedless watermelons (6-8 lbs).

Building The Soil Carbon Sponge At Murray Wells Farm, Tambellup, Western Australia, Wendy Bradshaw

Natural resources published reports

Peter and Wendy Bradshaw farmed at Murray Wells Farm about 25 km west of Tambellup for around 46 years until they sold and retired in 2022. They produced barley, oats, merino and prime lambs on an annual rainfall of 450 mm over 1,000 arable hectares. The farm was on a moderately undulating landscape with a mix of soils including sandy duplex, well-drained sand over gravel over clay, shallow sandy or loamy gravel over cemented laterite and red to brown loamy soils.Their farming philosophy was to view agriculture as an ecological enterprise that included them as part of the ecosystem, and …

Agricultural Groundcover Update October 2023, Justin Laycock

Natural resources published reports

Summary

• About 98% of the grainbelt had adequate vegetative groundcover (more than 50%) to prevent wind erosion in October 2023. This amount of groundcover is normal at the end of spring and pre-harvest in most areas.
• There was a larger than average area with 51–60% groundcover, and groundcover in these areas is expected to reduce over summer to below 50%.
• About 2% of the grainbelt (293,000 ha) had less than 50% groundcover, which is inadequate to prevent wind erosion. Mullewa to Morawa Ag Soil Zone had the highest risk of wind erosion and 8% of this farmland had inadequate groundcover. …

The Casnr L.I.N.K.S. Newsletter: Learning Innovation Network For K-12 Schools, Volume 2, Edition 10, November 2023, Bailey Feit, Tammy Mittelstet

CASNR L.I.N.K.S. Newsletter

The purpose of this L.I.N.K.S. newsletter is to provide a monthly update of opportunities and resources for K-12 schools to connect with the University of Nebraska's CASNR Food, Energy, Water, and Societal Systems (FEWS²) programs and partners.

Included in this edition:

UNL Institute of Agriculture and Natural Resources, Agricultural Economics, high school commodity market curriculum

UNL CASNR Changemaker competition

UNL Department of Food Science and Technology

Health system innovators spotlight

UNL Department of Biochemistry

UNL Department of Microbiology

Student and teacher opportunities:

Engler Agribusiness, Native American Coalition, Next Black and Hispanic Farmers Scholarship, World Food Prize Youth Institute scholarship, Midwest …

Notes From The Brazilian Cornfields, Fabio Mattos

Cornhusker Economics

In the last few months, I have been traveling in Brazil. My objective with this trip is to meet with industry professionals, government officials, and academic researchers to learn about recent developments in Brazilian agriculture and what we can expect to see in the future. I have essentially been asking people their opinions about the main developments in Brazil in the last few years and their perspectives for the future. One of the main topics that has emerged consistently in these conversations is, not surprisingly, the corn market.

Do Only Americans Own America? Foreign Investment In Agricultural Lands In The United States, Larry W. Van Tassell

Center for Agricultural Profitability

Foreign investment in the United States, while not a new phenomenon, has recently caught the attention of the American public and members of the U.S. House and Senate after an Air Force officer raised concerns when the Fufeng Group, based in Shandong, China, purchased 300 acres of farmland 12 miles from an Air Force base in Grand Forks, North Dakota, to build a corn milling plant (Javers, 2022). National security concerns prompted the U.S. Senate to propose a bill prohibiting the purchase of land in the U.S. by companies or individuals from China, North Korea, Iran, or Russia.

Diesel Tractor Fuel Efficiency And Exhaust Emissions Standards, Jerin Tekolste, Cory Walters, Michael Mccullough, Lynn Hamilton, Lia Nogueira, Roger M. Hoy

Cornhusker Economics

Diesel engine performance and costs represent crucial factors for agricultural producers while pollutants from the exhaust are largely a social concern but also important to producers. Beginning in 1970, Congress authorized the Environmental Protection Agency to regulate emissions with amendments in subsequent years (U.S. EPA, 2023). In 1996 the EPA issued strict Exhaust Emission Standards for Nonroad Compression-Ignition Engines, causing a major paradigm shift in acceptable emission levels. A primary concern coming from many manufacturers was the difficulty of designing an engine to meet these standards without compromising the engines’ power output and efficient fuel consumption (Lloyd and Cackette 2001; …

Wics Conference 2023: Moving Beyond The Ordinary, Daren Redfearn, Daran Rudnick

WICS Conferences

The theme of this year’s WICS Conference is Moving Beyond the Ordinary with the goal of addressing Team Science. Our vision is to provide opportunities and connection points among IANR faculty to leverage their individual knowledge, skills, abilities, and passions. A tendency for land grant institutions is often to deliver information biased from a single, primary discipline and perspective. This is known as comfort zone mega bias and has been defined as “the tendency to drag a problem into our comfort zone and solve the problem that we know how to solve, rather than solving the problem that needs to …

Forest Composition Change And Biophysical Climate Feedbacks Across Boreal North America, Richard Massey, Brendan M. Rogers, Logan T. Berner, Sol Cooperdock, Michelle C. Mack, Xanthe J. Walker, Scott J. Goetz

Aspen Bibliography

Deciduous tree cover is expected to increase in North American boreal forests with climate warming and wildfire. This shift in composition has the potential to generate biophysical cooling via increased land surface albedo. Here we use Landsat-derived maps of continuous tree canopy cover and deciduous fractional composition to assess albedo change over recent decades. We find, on average, a small net decrease in deciduous fraction from 2000 to 2015 across boreal North America and from 1992 to 2015 across Canada, despite extensive fire disturbance that locally increased deciduous vegetation. We further find near-neutral net biophysical change in radiative forcing associated …

Farming For Nebraska's Future: Regenerative Agriculture In The Cornhusker State, Megan Buffington

Honors Theses

This reporting project started, as many do, with questions: Who is practicing sustainable agriculture in Nebraska? Why? What is stopping others from doing the same? And what even is sustainable agriculture?

Over the course of this project, I spoke with farmers, ranchers and academics, eventually learning that regenerative agriculture is the more widely used term, and there are a wide swath of systemic barriers preventing more producers from adopting it. But for those who do take the leap, the unconventional method leads to personal and financial well-being traditional agriculture never provided. The final project is made up of three articles …

Genetic Analysis Of Basal Stalk Rot Resistance Introgressed From Wild Helianthus Petiolaris Into Cultivated Sunflower (Helianthus Annuus L.) Using An Advanced Backcross Population, Zahirul I. Talukder, William Underwood, Christopher G. Misar, Xuehui Li, Gerald J. Seiler, Xiwen Cai, Lili Qi

Department of Agronomy and Horticulture: Faculty Publications

Introduction: Sclerotinia sclerotiorum is a serious pathogen causing severe basal stalk rot (BSR) disease on cultivated sunflower (Helianthus annuus L.) that leads to significant yield losses due to insufficient resistance. The wild annual sunflower species H. petiolaris, commonly known as prairie sunflower is known for its resistance against this pathogen. Sunflower resistance to BSR is quantitative and determined by many genes with small effects on the resistance phenotype. The objective of this study was to identify loci governing BSR resistance derived from H. petiolaris using a quantitative trait loci (QTL) mapping approach.

Methods: BSR …

Owning Our Identity – Celebrating Cooperatives In 2023, Charlotte Narjes

Cornhusker Economics

Owning Our Identity is the 2023 theme to build awareness of cooperatives nationally. October has been nationally recognized as cooperative month since 1964. The following bullets in this year’s USDA Proclamation emphasize the impact of cooperatives.

An Evaluation Of Parameters Which Affect Dairy Herd Movement On Irish Pasture-Based Farms, Paul James Maher, Michael D. Murphy, Michael Egan, Patrick Tuohy

Publications

In pasture-based grazing systems, farm roadways are a pivotal link to connect paddocks on the grazing platform to the milking parlour. However, their effectiveness in the efficient movement of the dairy herd between the grazing paddocks and the milking parlour has yet to be fully quantified. A validation experiment was conducted on a research farm to analyse characteristics on farm roadways that may affect cow throughput, which was observed as the number of cows per minute (CPM) passing a specified location. Roadway width (R2 = 0.96) and surface condition score (SC) (R2 = 0.78, respectively) were both positively associated with …

Effects Of Rootstock And Location On Open Field ‘Bhn 589’ And ‘Nebraska Wedding’ Grafted Tomato Yield, Raihanah H. Shonerd, Ashley A. Thompson, Samuel E. Wortman

Department of Agronomy and Horticulture: Faculty Publications

Grafted tomato (Solanum lycopersicum) production is popular, particularly in high tunnels, because grafted plants can mitigate soilborne disease incidence in highly infested soils and increase water and nutrient use efficiency and crop yield and quality. However, these potential benefits are not as well documented in open field production systems with less disease pressure. The objective of this study was to quantify the effect of tomato grafting on fruit yield, number, and size across 2 years (2018 and 2019) and three diverse open-field production environments in Nebraska (Lincoln, North Platte, and Dwight). At each location, a scion from one …

Usda Reports On Land Values And County-Level Cash Rent Estimates Across Nebraska In 2023, Jim Jansen, Jeff Stokes

Center for Agricultural Profitability

Survey findings from the USDA-National Agricultural Statistics Services (USDA-NASS) estimated that Nebraska farm real estate value, including all agricultural land and buildings, in 2023 increased by 13.1% to an average of $4,240 per acre (Figure 1). The year-over-year increases mark an increase of $490 for this annual period (USDA-NASS 2023a). Kansas and New Jersey lead the nation for the highest rates of increase in the market value of farmland at 16.3% and 14.9% for market value averages of $3,060 and $17,700 per acre. Nebraska marked the fifth-highest percentage increase for rising farm real estate when ranked against the other states.

Market And Welfare Impacts Of A “Portion Size Reduction” Policy, Hanin Hosni, Konstantinos Giannakas

Cornhusker Economics

The portion size of common food items consumed at home, restaurants and fast-food establishments in the United States (US) has increased since the 1970s, with the portion size of meals and beverages in several restaurants exceeding the US Department of Agriculture (USDA) and Food and Drug Administration recommendations. Portion size has continued to grow in parallel with increasing body weights and food waste. According to USDA, 35% of the US population suffers from obesity while 40 million people are food insecure. At the same time, about 1/3 of the US food supply goes unconsumed, with 2/3 of food waste occurring …

Insurance, Policy, And Education For Livestock Producers, Milan Chauhan, Bradley Lubben

Cornhusker Economics

Federal crop insurance programs have existed since the 1930s, but for livestock producers, federal insurance programs were virtually nonexistent until the past 20 years. Livestock producers may not face exactly the same production risks that crop producers face, but they do face similar production risks related to grazing capacity and forage production and of course face price risks just like crop producers do.

Evaluation Of Land Preparation Methods For Soil Stabilization, Revegetation, And Renewed Productivity In Semi-Arid Climates, Jarrett Lardy, North Dakota State University, Miranda Meehan, Aaron L. M. Daigh, James Staricka, Nathan Derby

Department of Agronomy and Horticulture: Faculty Publications

In the Williston Basin, land-preparation treatments have not been compared in side-by-side trials to evaluate performance for parameters such as runoff, erosion, and vegetation establishment. Thus, four treatments of wheat-straw crimping, land imprinting, wood-fiber hydromulch, and the combination of land imprinting and hydromulch were evaluated against a bare soil control in a replicated and randomized completed block field experiment near Williston, ND. Rainfall simulations were performed in September 2020 and June 2021 to examine the effectiveness of the treatments to reduce runoff and sediment losses. Vegetation establishment was also evaluated in August 2021. The wheat straw treatment reduced the equivalent …

Irrigation Increases On-Farm Soybean Yields In Water-Limited Environments Without A Trade-Off In Seed Protein Concentration, Walter D. Carciochi, Patricio Grassini, Seth Naeve, James E. Specht, Mitiku Mamo, Ron Seymour, Aaron Nygren, Nathan Mueller, Sarah Sivits, Christopher A. Proctor, Jenny Rees, Todd Whitney, N. Cafaro La Menza

Department of Agronomy and Horticulture: Faculty Publications

Context or problem: A trade-off between seed protein concentration (SPC) and yield has been reported for soybean. Therefore, assessing management practices that can nullify this trade-off is relevant to avoid further declines in SPC in the future as yield continues to increase. While the positive effect of irrigation on yield is well documented, only a few studies have assessed the impact of irrigation on SPC, showing conflicting results.

Objective or research question: The objective was to determine if the trade-off between seed yield and SPC persists when irrigation is applied and how management, soil, and weather factors influence the trade-off. …

Kluyveromyces Marxianus Prepared As A Ready To Use Supplemental Food (Rusf), Zachary Christman

Applied Science Program: Theses

Ready to Use Supplemental Food (RUSF) is a nutrient dense paste or compressed bar used to supplement a person’s nutritional needs because of malnutrition or due to food shortages. The purpose of this article is to demonstrate some methods of how the dairy organism Kluyveromyces marxianus can be used to enrich the protein value of bread or ferment a substrate such as wheat bran into a more digestible form.

A Classical Fall Statistics Problem, Timothy L. Meyer

Cornhusker Economics

An evaluation of traditional baseball measures and suggestions for alternatives, centering on statistics related to the offensive quality of a player.

Deleterious Mutations Predicted In The Sorghum (Sorghum Bicolor) Maturity (Ma) And Dwarf (Dw) Genes From Whole‑Genome Resequencing, Nathan P. Grant, John J. Toy, Deanna L. Funnell, Scott E. Sattler

Department of Agronomy and Horticulture: Faculty Publications

In sorghum [Sorghum bicolor (L.) Moench] the Maturity (Ma1, Ma2, Ma3, Ma4, Ma5, Ma6) and Dwarf (Dw1, Dw2, Dw3, Dw4) loci, encode genes controlling flowering time and plant height, respectively, which are critical for designing sorghum ideotypes for a maturity timeframe and a harvest method. Publicly available whole-genome resequencing data from 860 sorghum accessions was analyzed in silico to identify genomic variants at 8 of these loci (Ma1, Ma2, Ma3, Ma5, Ma6, Dw1, Dw2, Dw3) to identify novel loss …

Maine Hunger Dialogue And Climate Action Summit Safeguarding Food Systems From A Warming Planet, University Of Maine Cooperative Extension

General University of Maine Publications

Promotional flyer for the Maine Hunger Dialogue and Climate Action Summit. "Join students, faculty, and staff from colleges, community colleges, and high schools across the state for this one-day conference. Participants will have an opportunity to network, discuss food security, and climate change, and find solutions to combat these issues within our own communities."

The Silver Bullet That Wasn’T: Rapid Agronomic Weed Adaptations To Glyphosate In North America, Christopher Landau, Kevin Bradley, Erin Burns, Michael Flessner, Karla Gage, Aaron Hager, Joseph Ikley, Prashant Jha, Amit Jhala, Paul O. Johnson, William Johnson, Sarah Lancaster, Travis Legleiter, Dwight Lingenfelter, Mark Loux, Eric Miller, Jason Norsworthy, Micheal Owen, Scott Nolte, Debalin Sarangi, Peter Sikkema, Christy Sprague, Mark Vangessel, Rodrigo Werle, Bryan Young, Martin M. Williamsii

Department of Agronomy and Horticulture: Faculty Publications

The rapid adoption of glyphosate-resistant crops at the end of the 20th century caused a simplification of weed management that relied heavily on glyphosate for weed control. However, the effectiveness of glyphosate has diminished. A greater understanding of trends related to glyphosate use will shed new light on weed adaptation to a product that transformed global agriculture. Objectives were to (1) quantify the change in weed control efficacy from postemergence (POST) glyphosate use on troublesome weeds in corn and soybean and (2) determine the extent to which glyphosate preceded by a preemergence (PRE) improved the efficacy and consistency of weed …

Deep Semantic Hashing For Aerial Livestock Detection, Shosei Anegawa, Franz Kurfess, Sumona Mukhopadhyay

College of Engineering Summer Undergraduate Research Program

The goal of this project is to be able to accurately detect and count livestock in footage captured by a drone in real time. The main problems with this arise from the fact that a drone can only carry limited computing resources, and hashing is conventionally thought of as a great method of doing image classification very quickly and thus even on low-power devices. In this project, we use both a Faster-RCNN, which is a state-of-the art object detection model as a benchmark to develop a hashing model that can perform a similar task much more quickly. These two models …

Arkansas Wheat Performance Tests 2022-2023, J. F. Carlin, R. B. Mulloy, R. D. Bond

Arkansas Agricultural Experiment Station Research Series

Wheat variety performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Crop Variety Improvement Program.

The tests provide information to companies developing cultivars and marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for small-grain producers. The tests were conducted at the Northeast Research and Extension Center at Keiser, the Vegetable Substation near Kibler, the Lon Mann Cotton Research Station near Marianna, the Pine Tree Research Station near Colt, and the Rohwer Research Station near Rohwer. Specific location and cultural practice information accompany each …

G Protein-Coupled Receptors: A Target For Microbial Metabolites And A Mechanistic Link To Microbiome-Immune-Brain Interactions, Gajender Aleti, Emily A. Troyer, Suzi Hong

Agricultural and Environmental Sciences Faculty Research

Human-microorganism interactions play a key role in human health. However, the underlying molecular mechanisms remain poorly understood. Small-molecules that offer a functional readout of microbe-microbe-human relationship are of great interest for deeper understanding of the inter-kingdom crosstalk at the molecular level. Recent studies have demonstrated that small-molecules from gut microbiota act as ligands for specific human G protein-coupled receptors (GPCRs) and modulate a range of human physiological functions, offering a mechanistic insight into the microbe-human interaction. To this end, we focused on analysis of bacterial metabolites that are currently recognized to bind to GPCRs and are found to activate the …

Nebraska Crop Budgets 2024, Robert N. Klein, Glennis Mcmclure

Department of Agricultural Economics: Presentations, Working Papers, and Gray Literature

The 2024 Nebraska Crop budget projections were created using cropping practice norms for many producers in Nebraska. However, each individual farming operation is unique, and these budgets should be used only as a guide. The budgets for 2024 are available in the Agricultural Budget Calculator program at:https://agbudget.unl.edu/. To modify these budgets, you can download UNL budgets into your ABC program account or create your own. In addition, the reports for each of the 2024 crop budgets are saved as printable (PDF) files. See also the new budget calculator at https://cap.unl.edu/abc.

The following individuals contributed to these budgets …

Analysis Of The Effects Of Nafta On Rural Farmers In Mexico: Agriculture And Immigration, Kevin Xavier Garcia-Galindo

Independent Study Project (ISP) Collection

This research paper examines the effects of the North American Free Trade Agreement (NAFTA) on agricultural workers in rural Mexico and immigration rates from those regions. The paper aims to investigate the validity of claims regarding the impact of NAFTA on immigration and agriculture, which are often interconnected. By focusing on the rural farming communities of Mexico, the study incorporates ethnographic perspectives to complement existing academic research on NAFTA. The research question explores how NAFTA affected agricultural workers in rural Mexico and its implications for immigration patterns. Through a comprehensive literature review and interviews with individuals involved in rural farming, …

Portugal To New Mexico: Investigating The Applicability Of Syntropic Agriculture To A Semi-Arid Continental Climate, Arielle Nathan

Independent Study Project (ISP) Collection

Conventional industrial agriculture has numerous detrimental effects on the environment including high carbon emissions, pollution and overconsumption of water, soil degradation, and reduction of biodiversity (FAO, 2018). Large-scale alternatives are needed to combat these negative consequences and provide climate solutions. Syntropic Agriculture is a promising farming alternative especially in arid systems subject to degraded soils and desertification. New Mexico is a semi-arid continental climate in a prolonged period of drought and predicted to experience worsening agricultural conditions due to desertification, wildfire intensification, and exacerbated water scarcity. In an area with similar agricultural challenges, a project in Mértola, Portugal (Terra Sintrópica) …