Agriculture Commons^™

Profile Of An E-Commerce Seller, Paul Hill, Laurel Farrer

All Current Publications

This fact sheet provides a profile of an E-commerce seller for a remote location, including job description, average salary skills and tools needed, and career path.

Investigating The Effects Of Cognitive Diversity On The Small Gasoline Engines Problem Solving Ability Of Undergraduate Students Enrolled In A Team-Based Learning Formatted Agricultural Mechanics Course, Whitney L. Figland

LSU Master's Theses

Perhaps the most challenging factor in teaching is being able to foster a learning environment that meets the needs of all learners, which is often achieved by utilizing a plethora of instructional methods that develop critical thinking and problem solving skills. These 21st century skills have been recurrently identified as a critical component of today’s workplace and employers are hiring individuals who can solve complex problems, especially within agriculture. However, students in todays educational classrooms are often not receiving the hands-on instruction that is needed in order to foster the development of critical thinking and problem solving skills. Further, problem …

Market Impacts Of A Meat Tax, Regan Gilmore, Azzeddine Azzam

Cornhusker Economics

Over time, animal activists and environmentalists have made calls to put a tax on meat. What effect would that have? To find out, we estimated the impacts that a retail-level greenhouse gas (GHG) tax on meat would have on livestock and grain markets.

The research used a multi-market economic model that integrates the beef, pork, and poultry markets with the corn, distillers' grain, soybean, soymeal, and ethanol markets. For GHG taxes, we used those provided by Springman et al. based on a emission price (social cost) of $52 per metric ton of carbon dioxide equivalent estimated by EPA. Emissions by …

Development Of A Nitrogen Recommendation Tool For Corn Considering Static And Dynamic Variables, Laila A. Puntel, Agustin Pagani, Sotirios V. Archontoulis

Department of Agronomy and Horticulture: Faculty Publications

Many soil and weather variables can affect the economical optimum nitrogen (N) rate (EONR) for maize. We classified 54 potential factors as dynamic (change rapidly over time, e.g. soil water) and static (change slowly over time, e.g. soil organic matter) and explored their relative importance on EONR and yield prediction by analyzing a dataset with 51 N trials from Central-West region of Argentina. Across trials, the average EONR was 113 ± 83 kg N ha⁻¹ and the average optimum yield was 12.3 ± 2.2 Mg ha⁻¹, which is roughly 50% higher than the current N rates used …

Surface Fire To Crown Fire: Fire History In The Taos Valley Watersheds, New Mexico, Usa, Lane B. Johnson, Ellis Q. Margolis

Aspen Bibliography

Tree-ring fire scars, tree ages, historical photographs, and historical surveys indicate that, for centuries, fire played different ecological roles across gradients of elevation, forest, and fire regimes in the Taos Valley Watersheds. Historical fire regimes collapsed across the three watersheds by 1899, leaving all sites without fire for at least 119 years. Historical photographs and quaking aspen (Populus tremuloides Michx.) ages indicate that a high-severity fire historically burned at multiple high-elevation subalpine plots in today’s Village of Taos Ski Valley, with large high-severity patches (>640 ha). Low-severity, frequent (9–29-year median interval) surface fires burned on the south aspects …

Nitrogen Fertilizer Suppresses Mineralization Of Soil Organic Matter In Maize Agroecosystems, Navreet K. Mahal, William R. Osterholz, Fernando E. Miguez, Hanna J. Poffenbarger, John E. Sawyer, Daniel C. Olk, Sotirios V. Archontoulis, Michael J. Castellano

Plant and Soil Sciences Faculty Publications

The possibility that N fertilizer increases soil organic matter (SOM) mineralization and, as a result, reduces SOM stocks has led to a great debate about the long-term sustainability of maize-based agroecosystems as well as the best method to estimate fertilizer N use efficiency (FNUE). Much of this debate is because synthetic N fertilizer can positively or negatively affect SOM mineralization via several direct and indirect pathways. Here, we test a series of hypotheses to determine the direction, magnitude, and mechanism of N fertilizer effect on SOM mineralization and discuss the implications for methods to estimate FNUE. We measured the effect …

Nebraska Farm Real Estate Values Continue Gradual Declines In 2019, Jim Jansen, Jeffrey Stokes

Cornhusker Economics

The market value of agricultural land in Nebraska declined by three percent over the prior year to an average of $2,650 per acre according to the 2019 Nebraska Farm Real Estate Market Survey (Figure 1 and Table 1). This marks the fifth consecutive year of downward pressure as market values have dropped approximately 20 percent since reaching a high of $3,315 in 2014.

The University of Nebraska-Lincoln Department of Agricultural Economics annually surveys Nebraska land professionals including appraisers, farm and ranch managers, and agricultural bankers. Results from the survey are divided by land class and summarized by the eight Agricultural …

Things To Consider Before Co-Signing A Loan, J. David Aiken

Cornhusker Economics

Parents co-signing loans for their children is common in agriculture. This usually happens when the child needs a loan to purchase land, livestock, or farm equipment. Lenders are more willing to make the loan to a beginning producer if the parents co-sign. This means the parents promise to repay the loan if the younger producer cannot. Parents have been doing this as a way to help their kids get started in agriculture for decades. If the child turns out to be an effective producer, the risk of the parents being on the hook for the unpaid loan balance is pretty …

Using Drones For Precision Agriculture, Jiyul Chang, Madhav P. Nepal

iLEARN Teaching Resources

In this teaching module, students will learn what Precision Agriculture is and how to apply drone into Precision Agriculture practices. To use data (images) taken by drone, students will learn the basic theory of Remote Sensing. Using images, students learn how to make NDVI (Normalized Difference Vegetation Index) maps and how to apply drone (remote sensing technique) in agriculture.

Sustainable Agriculture Lesson For Middle School Classrooms, Sara Colombe, Madhav P. Nepal, Jennifer Mclaughlin, Matthew L. Miller, Larry B. Browning, P. Troy White

iLEARN Teaching Resources

In this lesson, students will learn about sustainability, where farmers/agriculturists can meet the needs of food, fiber, and fuel for the growing population. Students learn about growing population, its growth rate, major food source, sustainability barrel, potential ripple effects of positive impacts as well as the food waste and its effects.

Intercollegiate Wine Business Invitational, Nathan Saragoza, Ally Bushman, Cassidy Robinson, Hanna Bingham, Sam Weymouth, Luca Mallon

Student Engagement Posters

Nathan Saragoza, Ally Bushman, Cassidy Robinson, Hanna Bingham, Sam Weymouth, and Luca Mallon discuss student engagement at Linfield College with regard to their participation in the Intercollegiate Wine Business Invitational.

Improving The Distribution And Use Of Biogas By Conversion To Methanol, Zachary Christman

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

In this technology review, the process of turning an average biogas into methanol will be presented. The purpose is to find a better method of transporting the energy contained within biogas so that it may be used in industry as a value added product. The first step is removal of hydrogen sulfide, a corrosive chemical that can breakdown mechanical parts. The second step is carbon capture and conversion of the biogas into hydrogen. The final step is the hydrogenation of carbon dioxide into methanol using a copper catalyst and an alcohol co-catalyst.

Improving Access To Clean Water Through Service Learning, Rachel E. Gehr, Tolu Odimayomi, Carolina Tornesi Mackinnon

Engagement & Service-Learning Summit

No abstract provided.

Weather And Climate Summary And Forecast: March 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for March 2019. 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.

Exterranean [Table Of Contents], Phillip John Usher

Literature

“For anyone who might be suffering from Anthropocene fatigue, this is a book to jolt you from your slumbers. What happens to the globe when we shift attention from the outward projection of emissions to extraction ? The Earth we thought we knew, and were already mourning, takes on a stunning new critical light.”—Claire Colebrook, Pennsylvania State University

Exterranean concerns the extraction of stuff from the Earth, a process in which matter goes from being sub- to exterranean. By bringing a rich archive of nonmodern texts and images from across Europe, into conversation with the contemporary work of Bruno Latour, …

Nitrogen Requirements Of Ethiopian Mustard For Biofuel Feedstock In South Dakota, Phillip Alberti, Shannon Osborne, Febina Mathew, Shakaut Ali, Heidi Sieverding, Sandeep Kumar, Thandiwe Nieya

Agronomy, Horticulture and Plant Science Faculty Publications

Ethiopian mustard (Brassica carinata A. Braun) is a non-food oilseed crop that has received attention for its potential as a low-input biofuel feedstock suitable for production in the semiarid regions of the Northern Great Plains (NGP). Because B. carinata is a new crop to the NGP, the best management practices have yet to be developed. The objective of the study was to evaluate the effects of N fertilizer rate on seed yield, seed oil concentration, and oil yield of B. carinata and to determine the economic optimum N fertilizer rates. Field studies were conducted at two locations in South …

Model Simulation Of Cucumber Yield And Microclimate Analysis In A Semi-Closed Greenhouse In China, Xiaotao Ding, Yuping Jiang, Dafeng Hui, Lizhong He, Danfeng Huang, Jizhu Yu, Qiang Zhou

Biology Faculty Research

Adequate greenhouse environmental management is very important for improving resource use efficiency and increasing vegetable yield. The objective of this study was to explore suitable climate and cultivation management for cucumber to achieve high yield and build optimal yield models in semi-closed greenhouses. A fruit cucumber cultivar Deltastar was grown over 4 years in greenhouse and weekly data of yields (mean, highest and lowest) and environmental variables, including total radiation, air temperature, relative humidity, and carbon dioxide (CO2) concentration were collected. Regression analyses were applied to develop the relationships and build best regression models of yields with environmental variables using …

Proceedings Of The 46th Annual Meeting Of The Southern Soybean Disease Workers (March 6-7, 2019, Pensacola Beach, Florida), Carl Bradley, Heather M. Kelly, Burt Bluhm, Danise Beadle, Patricia Bollich, Trey Price, Tom Allen

Southern Soybean Disease Workers: Conference Proceedings

Contents

List of SSDW Officers

Agenda for March 6-7, 2019

Abstracts for presented/contributed papers

Evaluating phytotoxicity in response to fungicide by adjuvant combinations. TW Allen and TH Wilkerson

Effect of delayed harvest on the seed quality of commercial soybean cultivars. JC Rupe, JA Rojas, R Holland, SR Segalin, RD Bond, and JA Still

Virome of Macrophomina phaseolina isolates collected from soybean fields in Mississippi. Nina Aboughanem-Sabanadzovic, Tessie Wilkerson, Tom Allen, and Sead Sabanadzovic

Genomic evidence for interspecific hybridization in Cercospora cf. flagellaris strains associated with Cercospora leaf blight of soybean. Alex Zaccaron, Kona Swift, Ahmad Fakhoury, and Burt Bluhm

Identification …

Forage News [2019-03], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Novel Tall Fecue Workshop - March 20
• Round Bale Binding Materials Evaluated
• Impact of Tedding on Alfalfa Silage
• Spring Grazing School April 23-24
• Spring Fencing School: 3 Dates, 3 Locations

A New Direction For Salinity Management In Western Australia: A Consultative Review, Ghd

Natural resources commissioned reports

In May 2018, the Office of the Auditor General (OAG) published an audit into the management of salinity and recommended that the Department of Primary Industries and Regional Development (DPIRD), in consultation with the Department of Biodiversity, Conservation and Attractions (DBCA) and the Department of Water and Environmental Regulation (DWER), set a strategic direction for salinity management for WA and improve monitoring, cooperation, coordination, promotion of soil conservation, and compliance of salinity impacts and its management.

The OAG’s audit focused on two questions:

1. Do agencies know the extent and impact of dryland salinity in the South West agricultural regions?
2. Are …