Social and Behavioral Sciences Commons^™

Multi-Criteria Evaluation Model For Classifying Marginal Cropland In Nebraska Using Historical Crop Yield And Biophysical Characteristics, Andrew Laws

School of Natural Resources: Dissertations, Theses, and Student Research

Marginal cropland is suboptimal due to historically low and variable productivity and limiting biophysical characteristics. To support future agricultural management and policy decisions in Nebraska, U.S.A, it is important to understand where cropland is marginal for its two most economically important crops: corn (Zea mays) and soybean (Glycine max). As corn and soybean are frequently planted in a crop rotation, it is important to consider if there is a relationship with cropland marginality. Based on the current literature, there exists a need for a flexible yet robust methodology for identifying marginal land at different scales, which …

The Role Of Farmer Heterogeneity In Nutrient Management: A Farm-Level Analysis, Hua Wang, Naveen Adusumilli, Daniel Fromme, Keith Shannon

Journal of Applied Farm Economics

Understanding farmer heterogeneity regarding nutrient management decisions is crucial for the success of any nonpoint source pollution prevention programs. Data from a farm- level experiment of cover crops in corn production were used in the Stochastic Efficiency with Respect to a Function framework to examine preference for nitrogen strategies over a range of risk aversion levels. We show the highest net return and certainty equivalent to the consideration of N supplied by cover crops. The results provide insights into policy discussions about the level of conservation incentives and plans that offer solutions to mitigate nonpoint source pollution.

The Convenience Yield Determinants Of Corn Futures, Christopher R. Delong

Doctoral Dissertations (DBA)

This paper presents an in-depth analysis of the convenience yield determinants of corn futures. The estimated spot price and convenience yield are derived from Gibson and Schwartz’s (1990) two-factor model, and a deterministic seasonal component is added to the convenience yield. Numerous potentially novel determinants are regressed against the convenience yield while controlling for the spot price. The spot price is highly significant in all univariate regressions and is the main driver of changes in convenience yield. This research confirms the theory of storage, provides conflicting results regarding net hedging pressure, shows significant results for novel determinants, and proves that …

Detecting Recent Crop Phenology Dynamics In Corn And Soybean Cropping Systems Of Kentucky, Yanjun Yang, Bo Tao, Liang Liang, Yawen Huang, Christopher J. Matocha, Chad D. Lee, Michael Sama, Bassil El Masri, Wei Ren

Geography Faculty Publications

Accurate phenological information is essential for monitoring crop development, predicting crop yield, and enhancing resilience to cope with climate change. This study employed a curve-change-based dynamic threshold approach on NDVI (Normalized Differential Vegetation Index) time series to detect the planting and harvesting dates for corn and soybean in Kentucky, a typical climatic transition zone, from 2000 to 2018. We compared satellite-based estimates with ground observations and performed trend analyses of crop phenological stages over the study period to analyze their relationships with climate change and crop yields. Our results showed that corn and soybean planting dates were delayed by 0.01 …

Cost Efficiency Of International Corn And Soybean Production, Rachel Purdy, Michael Langemeier

Journal of Applied Farm Economics

The objective of this paper was to examine the cost efficiency of corn and soybean pro-duction for typical farms involved in the cash crop agri benchmark network using data for the period 2013 to 2017. Average cost efficiency for the typical farms in the network that produced corn, soybeans, and both corn and soybeans was 0.749, 0.774, and 0.939, respectively. Inefficiency was a greater problem for the farms producing corn than for the other farm types examined. Inefficient farms tended to overutilize direct, operating, and overhead inputs.

Three Essays On Energy And Agricultural Price Analysis, Sara Farhangdoost

Graduate Theses, Dissertations, and Problem Reports

This dissertation consists of three essays on energy and agricultural commodity price analysis: 1) Natural Gas Price Forecasting in a Changing World; 2) The Effect of EIA Storage Announcement on Natural Gas Returns: A Comprehensive Analysis; and 3) Forecasting the U.S. Season-Average Farm Price of Corn: Derivation of an Alternative Futures based Forecasting Model.

The first essay evaluates the performances of various individual and composite forecasting models when predicting natural gas prices in the United States. The empirical results show that forecast generated by the Energy Information Administration Short-Term Energy Outlook provides a more accurate price prediction at longer forecasting …

Assessment Of Grain Safety In Developing Nations, Jose R. Mendoza

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Grains are the most widely consumed foods worldwide, with maize (Zea mays) being frequently consumed in developing countries where it feeds approximately 900 million people under the poverty line of 2 USD per day. While grain handling practices are acceptable in most developed nations, many developing nations still face challenges such as inadequate field management, drying, and storage. Faulty grain handling along with unavoidably humid climates result in recurrent fungal growth and spoilage, which compromises both the end-quality and safety of the harvest. This becomes particularly problematic where there is little awareness about health risks associated with poor …

Development Of Arkansas Net Energy Equation, Katie Hilton

Graduate Theses and Dissertations

The modern broiler is growing at a rapid rate generating tremendous amounts of heat. A sensitive Net Energy (NE) system is needed to measure body heat production (HP) generated primarily by daily maintenance and synthesis and degradation of myofibrillar and sarcoplasmic protein. The first two chapters present evaluation of the classic way to calculate NE versus a new methodology; the Arkansas NE (Ark NE) system, with birds from two genetic lines fed diets with different AA content or different ME content in two different environmental temperatures.

Utilizing together the Net Energy maintenance (NEm), determined from indirect calorimetry, and Net Energy …

The United States Love Affair With Maize: A National Security Issue?, Jared Kelly

Gettysburg Social Sciences Review

Maize is the most widely grown crop in the United States. The crop has a variety of applications being used for food, fuel, and in some industries. Maize is heavily integrated into the fabric of billions of lives across the world. The United States has encouraged the growth of a massive maize monoculture through the usage of government subsidies. However, this presents issues for the United States since it has created a large monoculture that is threatened by natural disasters, pest infestation, and bioterrorism attacks. Additionally, the cheap nature of the monoculture has additional externalities. Examples include decimated maize production …

Three Essays On “Production And Technical Efficiency”, Douglas Mugabe

Graduate Theses, Dissertations, and Problem Reports

This dissertation examines production and or technical efficiencies in agricultural and energy systems. The first essay examines production capabilities of smallholder corn farmers following Zimbabwe’s fast track land reform program of 2000. This paper accounts for semi-parametric production frontier to provide more reliable efficiency estimates than can be obtained using traditional parametric methods. The second essay examines efficiency and state level fuel substitution in the US electricity generation sector. I apply the recent fixed effects stochastic frontier estimation to understand the implications of changes in inter-fuel substitution for technical efficiency. The third essay examines the role of drilled but uncompleted …

Law Library Blog (December 2019): Legal Beagle's Blog Archive, Roger Williams University School Of Law

Law Library Newsletters/Blog

No abstract provided.

Divergence Of Usda Trade Payments For Corn, Soybean, And Wheat Producers And ‘Nowcasts’ Of Tariff Impacts, Matthew Elliott, Lisa Elliott

Matthew Elliott

No abstract provided.

Updated Tables And Figures For Ec 846 Nebraska Cash Corn Prices And Basis Patterns, Jessica J. Groskopf, Cory Walters

Extension Farm and Ranch Management News

No abstract provided.

Wildlife Damage To Crops Adjacent To A Protected Area In Southeastern Mexico: Farmers’ Perceptions Versus Actual Impact, Gabriel Can-Hernández, Claudia Villanueva-García, Elías José Gordillo-Chávez, Coral Jazvel Pacheco-Figueroa, Elizabeth Pérez-Netzahual, Rodrigo García-Morales

Human–Wildlife Interactions

Human–wildlife conflicts occur when wildlife has an adverse effect on human activities (e.g., predation of livestock, crop raiding). These conflicts are increasing, particularly in areas surrounding natural protected areas, where villagers engage in subsistence agriculture. Crop damage may cause farmers to retaliate and harm wildlife species considered responsible for the damage. Among the factors that determine the intensity of the conflict are the frequency of the damage and the amount of biomass consumed relative to the perceptions, values, and cultural history of the farmers affected. To better understand the conflicts between farmers and wildlife, we compared farmer perceptions of wildlife …

Incidencia Del Tratado De Libre Comercio Con Estados Unidos Sobre La Producción Colombiana De Maíz: En El Periodo 1980-2015, Viviana Bohórquez Ríos, Leily Paola Charry Ochoa

Economía

En este trabajo se analiza el impacto que tiene el Tratado de Libre Comercio (TLC) de Colombia con Estados Unidos sobre la producción, las exportaciones y las importaciones del maíz nacional. Para esto se realizó un análisis de cointegración para la aplicación del modelo de vector de corrección de errores (VEC) en el período 1980-2015 y un análisis de Mínimos Cuadrados Ordinarios (MCO) para ver las relaciones de corto plazo. Una vez estimadas las ecuaciones se realiza un análisis de bienestar, tomando en cuenta dos situaciones: el primero en presencia de TLC sin desgravación arancelaria (los precios nacionales convergen directamente …

The History Of Khorezm Farming Culture In The Great Selection Scientist Academician N.I. Vavilov’S Investigations, S. N. Navruzuv, F. J. Tojiyeva

Central Asian Problems of Modern Science and Education

The article deals with the scientific expedition of Khorezm oasis, organized in 1925 under the leadership of academician N. Vavilov. It is noticeable that Khorezm is a historical agrarian country, which has a high agricultural culture. The researcher N. Vavilov, studying the numerous materials gathered by the participants of the expedition, has brought more than 80 types of agricultural plants of Khorezm oasis, besides there were described characteristics of some plants

2018 Updated Tables And Figures For Ec 846 Nebraska Cash Corn Prices And Basis Patterns, Jessica J. Groskopf, Cory Walters

Extension Farm and Ranch Management News

No abstract provided.

Corncobs In The Campfire: Evidence Of Cultivation Of Zea Mays At 44ch62, The Randy K Wade Site, Olivia A. Mehalko, Cameron E. Reuss

Selected Publications

In 20 years of excavation, the Randy K. Wade site (44CH62) has only produced indirect evidence of the cultivation of corn (Zea mays) in the Late Woodland village. This indirect evidence consists primarily of corncob impressions on Dan River pottery. In the summer of 2017, an intact hearth was excavated which contained the preserved remains of multiple charred corncobs- the first direct evidence of corn. The hearth also contained remains of other organic materials such as charred corn kernels, bark, sticks, bone fragments, and acorns. This paper will examine the direct evidence for corn cultivation at the Wade …

Jaggers, Katie Thompson (Fa 1107), Manuscripts & Folklife Archives

FA Finding Aids

Finding aid only for Folklife Archives Project 1107. Paper titled “Methods of Corn Production in an Edmonson Co[unty] Community” in which Katie Jaggers Charts the history of corn harvesting by traditional means, such as using mules, shovels, wagons, and A-harrows, up through the current practice of employing highly-tech machinery. Paper is based on information collected by Jaggers from two brothers, Edgar and Harry Thompson, who resided in Lindseyville, Kentucky. Collection also includes color photos and descriptions of traditional farming machinery.

Law Library Blog (October 2017): Legal Beagle's Blog Archive, Roger Williams University School Of Law

Law Library Newsletters/Blog

No abstract provided.

Measuring The Adaptive Response To Drought, Kyle Eagar

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Scientific evidence suggests that future climate change has the potential to bring about an increase in both the frequency and duration of drought in some regions of the world (United Nations, 2012). Economists have theorized that at least some of the adverse effects of these droughts will be mitigated through various adaptive responses by agricultural producers. The effectiveness of any adaptive response to climate change will depend on how quickly producers can recognize a change in climatic patterns and respond accordingly. The following paper investigates the relationship between a specific climate signal (prolonged drought) and the land use decision of …

Incentive Payments For Planting Upland Bird Habitat Field Borders In Tennessee, Nathaniel Scott Bruce

Masters Theses

Crop yields along field perimeters that are adjacent to trees and other tall-herbaceous are known to have the lowest yields in a field. An alternative use of these areas that might be more profitable and sustainable is to remove the land from crop production and enroll these areas into the upland bird habitat (UBH) buffer program. However, the adoption of UBH buffers have been limited by producers, despite being eligible for receiving an incentive payment for adopting UBH buffers. Therefore, the objective of this thesis was to determine the breakeven incentive payment for corn [Zea mays L.] and soybean …

Price Relationships Between Calves And Yearlings: An Updated Structural Change Assessment, Glynn T. Tonsor, Emily Mollohan

Journal of Applied Farm Economics

This article updates and extends the understanding of U.S. feeder cattle price determinants. Structural change in the summer of 2008 was identified, with both calf and yearling markets adjusting to become substantially more sensitive to changes in corn and expected live cattle prices. The impact of live cattle price expectations on feeder cattle prices is three or more times larger than the same proportional impact of corn price, and this relative impact has increased since 2008. Price spreads between calves and yearlings are also found to be more sensitive to input and output price changes than individual cattle price series. …

Export Demand Estimation For U.S. Corn And Soybeans To Major Destinations, Sayed Y. Saghaian

Theses and Dissertations--Agricultural Economics

The United States is the leading producer and exporter of corn and soybeans in the world. The United States exports 20% of the world’s corn and 30% of soybeans in a typical year (USDA, ERS). The U.S., being the top producer and exporter of these commodities, is also confronting major rivals such as Argentina, Brazil, and Ukraine, which are increasing their exports and causing the U.S. to lose some of its market share. In order to stop this decline in market share, the U.S. can adopt and implement different policies to manage resources and employ advanced technology more effectively.

In …

2017 Updated Tables And Figures For Ec 846 Nebraska Cash Corn Prices And Basis Patterns, Cory Walters, Jessica J. Groskopf

Extension Farm and Ranch Management News

No abstract provided.

Field To Feedlot: How Us Policy Promoted Cattle Concentration, Hannah Siegel Conley

Senior Projects Spring 2017

Senior Project submitted to The Division of Social Studies of Bard College.

Performance Of The Producer Accumulator In Corn And Soybean Commodity Markets, Chad Te Slaa

Electronic Theses and Dissertations

This research quantifies risk reduction and performance of the producer accumulator contract in corn and soybean markets. To quantify performance, we use three alternative theoretical pricing models to estimate historical producer accumulator contract specifications in corn and soybean markets. We then compare the performance of the producer accumulator to eight alternative agricultural marketing strategy portfolios that are also used in new generation grain contracts. The performance measures we compare are: average bushel price that would be received by the producer, daily portfolio risk, and the Sharpe ratio. The period we examine performance was between 2008 and 2017. We investigate performance …

From Milpas To The Market: A Study On The Use Of Metal Silos For Safer And Better Storage Of Guatemalan Maize, José Rodrigo Mendoza

Department of Food Science and Technology: Dissertations, Theses, and Student Research

This project aimed to implement the use of metal silos to improve quality and safety of maize consumed by inhabitants of the highlands of Guatemala. This manuscript includes a literature review of the maize production chain in Guatemala, a survey about agricultural practices used in the region of study, as well as a characterization of the analyzed maize regarding its mycoflora, nutritional composition, and insect infestation. To better understand the current situation regarding agricultural practices and maize consumption, a survey was carried out. Sample consisted of 280 families representing 14 rural communities distributed in the townships of Todos Santos and …

Crop Price Patterns, Jessica J. Groskopf

Extension Farm and Ranch Management News

No abstract provided.

Updated Tables And Figures For Ec 846 Nebraska Cash Corn Prices And Basis Patterns, Cory Walters, Jessica J. Groskopf

Extension Farm and Ranch Management News

No abstract provided.