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Articles 1 - 26 of 26
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Dining Out Behavior In China And The Implications In The Post-Covid-19 Era, Ji Yong Kwon
Dining Out Behavior In China And The Implications In The Post-Covid-19 Era, Ji Yong Kwon
The Journal of Purdue Undergraduate Research
No abstract provided.
A Decision Aid To Help Farmers Find The Minimum Cost Fertilizer Combination, Gregory Ibendahl
A Decision Aid To Help Farmers Find The Minimum Cost Fertilizer Combination, Gregory Ibendahl
Journal of Applied Farm Economics
Fertilizer recommendations are typically given as the pounds of nitrogen, phosphorus, and potassium needed per acre. Many crop budgets also list the fertilizer costs in terms of the N, P, and K. This can cause a problem for farmers as they must purchase their fertilizer in products that in some cases contain multiple nutrients. These multinutrient fertilizers make it difficult or impossible to calculate a price per unit of a nutrient. Thus, finding the minimum cost fertilizer combination by using a price per nutrient approach may not work. This paper shows how a linear programming approach will always give the …
Perennial Warm-Season Grass Forages Impact On Cow-Calf Profitability In The Fescue Belt, Kyle A. Brazil, Patrick D. Keyser, Andrew P. Griffith, Christopher N. Boyer, J. Travis Mulliniks
Perennial Warm-Season Grass Forages Impact On Cow-Calf Profitability In The Fescue Belt, Kyle A. Brazil, Patrick D. Keyser, Andrew P. Griffith, Christopher N. Boyer, J. Travis Mulliniks
Journal of Applied Farm Economics
Incorporating a perennial warm- season grass (WSG) into tall fescue (Lolium arundina-ceum [Schreb.] Darbysh.) forage systems in the fescue belt can help avoid the effects of fescue toxicosis on beef cattle (Bos taurus) reproduction and animal performance and provide forage during summer when fescue production is low. However, little information is available on the economics of incorporating WSG into fescue-based forage systems. We developed a simulation model to compare profitability of three forage systems—100% tall fescue, 70% tall fescue/30% bermudagrass (Cynodon dactylon), and 70% tall fescue/ 30% switchgrass (Panicum virgatum)—while also comparing spring- …
Determining The Accuracy Of Holstein Bull Semen Prices With A Two-Tier Efficiency Model, Loren W. Tauer
Determining The Accuracy Of Holstein Bull Semen Prices With A Two-Tier Efficiency Model, Loren W. Tauer
Journal of Applied Farm Economics
The pricing accuracy of dairy bull semen available for artificial insemination is investigated using a price model cast in terms of a two-tier efficiency model, which allows estimating an overprice and underprice given the net return the bull’s daughter is expected to contribute to the farm based upon the transmittable trait characteristics of a bull. The estimation produces statistically significant coefficients, including the coefficients for the overpricing and underpricing of the semen. The average estimate of overpricing is around 25%, and the average estimate of underpricing is around 33%. As expected, low semen prices tend to be underpriced and high …
Hemp Production Network Effects: Are Producers Tipped Toward Suboptimal Varietal Selection By Their Neighbors?, Tanner Mccarty, Jeffrey Young
Hemp Production Network Effects: Are Producers Tipped Toward Suboptimal Varietal Selection By Their Neighbors?, Tanner Mccarty, Jeffrey Young
Journal of Applied Farm Economics
The 2018 farm bill removed industrial hemp from the Schedule 1 Controlled Substance List. In response, states scrambled to enact hemp legislation. Some hemp flower producers report their hemp fields were cross- pollinated by a neighbor growing a different hemp cultivar. For hemp flower crops, cross- pollination reduces cannabinoid concentration levels within the flower; these concentration levels dictate flower price. We show that in a repeated game, once a sufficiently large percentage of growers decide to plant hemp fiber/seed crops, cross-pollination forces flower growers to convert to fiber/seed to avoid the negative network externality. Over time, a stable, suboptimal Nash …
Using Cold War-Era Satellite Imagery To Inform Historic Land Cover Classification, Nicholas Hamp-Adams
Using Cold War-Era Satellite Imagery To Inform Historic Land Cover Classification, Nicholas Hamp-Adams
The Journal of Purdue Undergraduate Research
No abstract provided.
Producer Willingness To Pay For Enhanced Packaging To Prevent Postharvest Decay Of Strawberries, Brian Coffey, Valentina Trinetta, Londa Nwadike, Umut Yucel
Producer Willingness To Pay For Enhanced Packaging To Prevent Postharvest Decay Of Strawberries, Brian Coffey, Valentina Trinetta, Londa Nwadike, Umut Yucel
Journal of Applied Farm Economics
We surveyed specialty crop producers in Kansas and Missouri to determine producer willingness to pay for new active packaging technology that prevents postharvest loss and increases shelf life. The survey also asked demographic questions to determine the producer and operation traits for this growing segment of production agriculture. More than half of those surveyed were female, and 60% were under 50 years of age. Smaller operations tend to utilize direct marketing and social media activity more than larger operations. Parametric willingness to pay estimates are approximately $0.39 per cardboard flat to purchase the antifungal film that increases shelf life of …
Financial Implications From Contracting Avian Influenza In A U.S. Broiler Operation, Jordan M. Shockley, Tyler Mark, Kenneth H. Burdine, Levi Russell
Financial Implications From Contracting Avian Influenza In A U.S. Broiler Operation, Jordan M. Shockley, Tyler Mark, Kenneth H. Burdine, Levi Russell
Journal of Applied Farm Economics
This essay evaluates the on-farm financial impacts of an avian influenza outbreak on a U.S. commercial broiler operation. It investigates how the timing and length of the outbreak impacts farm financial performance for two different farmers, beginning and experienced. Results indicate that a beginning farmer is more susceptible to significant financial losses. Both farmers are financially impacted more when avian influenza is contracted early in the investment and when the contamination and eradication of the virus was prolonged. Furthermore, this essay highlights the problems of using standard financial measures for analyzing disease outbreaks under production contract arrangements and presents alternative …
Impact Of Pesticide Regulation On Innovation In The United States And European Union, Brooke D. Schafer
Impact Of Pesticide Regulation On Innovation In The United States And European Union, Brooke D. Schafer
The Journal of Purdue Undergraduate Research
No abstract provided.
Tracking Life Skill Development Of Indiana 4-H Members, Kayla Groen
Tracking Life Skill Development Of Indiana 4-H Members, Kayla Groen
The Journal of Purdue Undergraduate Research
No abstract provided.
Sharing The Gift Of Water: A Hoosier-Haitian Partnership, Lauren Ward
Sharing The Gift Of Water: A Hoosier-Haitian Partnership, Lauren Ward
Purdue Journal of Service-Learning and International Engagement
Engagement Methods for International Food Security (YDAE 49100) provided an opportunity for enrolled students to travel abroad to Cap-Haitïen, Haiti. As both a course in agriculture and a service-learning study abroad, the overarching goal was to inspire, engage, and teach Purdue and Haitian students through service learning in agriculture. This was done by developing a project with teammates during the fall semester that was then presented to students in Haiti during the International Agri-Symposium at Université Antenor Firmin over winter break.
Profitability Of Developing Beef Heifers On Stockpiled Winter Forages, Zachary David Mcfarlane, Chris Boyer, J. Travis Mulliniks
Profitability Of Developing Beef Heifers On Stockpiled Winter Forages, Zachary David Mcfarlane, Chris Boyer, J. Travis Mulliniks
Journal of Applied Farm Economics
We estimate the profitability of developing heifers on one stockpiled cool-season grass and two stockpiled warm-season grasses during the winter months by comparing distributions of net present value (NPV) over an 11-year useful life. Furthermore, distributions of payback period and the break-even price for each calf over the heifer’s production life were generated for each forage species. These results are compared across forages as well as to a simulated drylot system for heifer development. Data comes from a grazing experiment in Tennessee, where heifers grazed big bluestem and Indian grass combination (BBIG), switchgrass (SW), or endophyte-infected tall fescue (TF) pastures. …
Impact Of Automated Guidance For Mechanical Control Of Herbicide-Resistant Weeds In Corn, Terry Griffin, James M. Lowenberg-Deboer
Impact Of Automated Guidance For Mechanical Control Of Herbicide-Resistant Weeds In Corn, Terry Griffin, James M. Lowenberg-Deboer
Journal of Applied Farm Economics
This study evaluated the feasibility of reintroducing mechanical weed control as an alternative for herbicide-resistance weed infestations. The production practice tested included row cultivation with a separate banded spray application using high-accuracy automated guidance systems. A range of ground speeds were tested for the row cultivation operation, each with a different per acre cost and timeliness penalty. A typical eastern Corn Belt farm with a rotation of corn and soybean served as the base for the linear programming model. It was found that if the farmer was willing to reintroduce tillage, row cultivation conducted at higher operating speeds in conjunction …
Do Profitable Farms Remain Profitable? Transition Probabilities Using Markov Switching Models Applied To Kansas Farm Data, Jayce S. Stabel, Terry Griffin, Greg Ibendahl
Do Profitable Farms Remain Profitable? Transition Probabilities Using Markov Switching Models Applied To Kansas Farm Data, Jayce S. Stabel, Terry Griffin, Greg Ibendahl
Journal of Applied Farm Economics
Financial vulnerability has been observed across agricultural production regions; however, uncertainty regarding farms’ persistence within specific profitability categories exists. This study compared farm characteristics that persist in most and least profitable categories and then evaluated the probability that farms transitioned among profitability categories. Using 425 Kansas Farm Management Association (KFMA) farms that were present for the 20-year period 1994–2013, the persistence of remaining or transitioning to another profitability category was tested. Specifically, Markov transition probabilities were estimated for Kansas and the six regional KFMA regions. Comparisons of farms that persist in the highest and lowest profitability categories revealed no dramatic …
Application Of The Adjusted Weak Axiom Of Profit Maximization To New Zealand Dairy Farming, Anne E. Dooley, Nicola M. Shadbolt, Koohyar Khatami, Loren W. Tauer
Application Of The Adjusted Weak Axiom Of Profit Maximization To New Zealand Dairy Farming, Anne E. Dooley, Nicola M. Shadbolt, Koohyar Khatami, Loren W. Tauer
Journal of Applied Farm Economics
The weak axiom of profit maximization is a nonparametric, empirical approach that has been used in the United States to analyze dairy farmers’ production and profit behavior under input and output price changes to determine whether farmers effectively respond to these changes. The expectation is that profit calculated using the current year’s input and output combination will be greater than that calculated from the previous year’s combination with current prices more often than due to chance. This approach was replicated using New Zealand dairy farm data (1,785 pairs of records over five years). Current year’s profits were significantly greater in …
Succession Planning And Perceived Obstacles And Attractions For Future Generations Entering Beef Cattle Production, Lee L. Schulz, Georgeanne M. Artz, Patrick J. Gunn
Succession Planning And Perceived Obstacles And Attractions For Future Generations Entering Beef Cattle Production, Lee L. Schulz, Georgeanne M. Artz, Patrick J. Gunn
Journal of Applied Farm Economics
This study provides valuable insights into cow-calf producer and feedlot operator succession plans for transferring cattle operations upon exiting the industry. Across both cow-calf producers and feedlot operators, about 50% expect to be raising cattle for 10 more years or less; however, about 39% of these producers do not have a succession plan in place. Cow-calf producers view a rural lifestyle, self-employment, working with livestock, and working with family as the biggest attractions to future generations entering beef cattle production. Cow-calf producers view environmental regulations, land tax policy, and expansion of corn and soybean acres as the biggest obstacles. Feedlot …
Partners In Haiti, Maggie Del Ponte, Christa Cheatham, Montana Campbell, Rachel Stowers, Kelli Teskey
Partners In Haiti, Maggie Del Ponte, Christa Cheatham, Montana Campbell, Rachel Stowers, Kelli Teskey
Purdue Journal of Service-Learning and International Engagement
In this article, a group of Purdue Students describes their service-learning experience in Haiti. They highlight what they learned about Haitian culture, the country’s need for agricultural and economic sustainability, and how Purdue students contribute to meet these needs. Maggie Del Ponte is a senior in biological engineering, Rachel Stowers is a sophomore in agricultural economics, Montana Campbell and Kelli Teskey are seniors in animal sciences, and Christa Cheatham is a junior in animal sciences.
Experiencing The Culture Of Cap-Haïtien: A Trip To Haiti, Alacyn Cox, Kamille Brawner, Kylie Echard
Experiencing The Culture Of Cap-Haïtien: A Trip To Haiti, Alacyn Cox, Kamille Brawner, Kylie Echard
Purdue Journal of Service-Learning and International Engagement
Alacyn Cox and Kamile Brawner, third-year students, and Kylie Echard, a second-year student, are in the College of Agriculture. In this article, they provide readers with a glimpse of their first impressions on the economy, traditions, and culture they experienced during a study abroad, service-learning experience in Haiti.
Intellectual Property Rights For New Seed Technologies: Balancing Farmers’ And Breeders’ Rights, Preethi Krishnan, Andrew Raridon, Leigh Raymond, Mangala Subramaniam
Intellectual Property Rights For New Seed Technologies: Balancing Farmers’ And Breeders’ Rights, Preethi Krishnan, Andrew Raridon, Leigh Raymond, Mangala Subramaniam
Purdue Policy Research Institute (PPRI) Policy Briefs
Many cite improved seed technologies as vital to addressing the challenge of food insecurity, especially when faced with combined stresses of global climate change, population growth, and natural resource depletion (Anthony and Ferroni 2012; Lipton 2007). As improved seeds find their way into the developing world, policymakers are struggling to find the appropriate institutional mechanisms to regulate their creation and use. Arguments over intellectual property rights (IPR) are central to this debate. Some activists in the Global South are distrustful of any IPR regime that creates private ownership over seeds, whereas international financial institutions such as the World Trade Organization …
Review Of The Gender And Social Impacts Of Improved Seed Technology In Developing Countries: Policy Implications, Preethi Krishnan, Andrew Raridon, Leigh Raymond, Mangala Subramaniam
Review Of The Gender And Social Impacts Of Improved Seed Technology In Developing Countries: Policy Implications, Preethi Krishnan, Andrew Raridon, Leigh Raymond, Mangala Subramaniam
Purdue Policy Research Institute (PPRI) Policy Briefs
Experts have acknowledged the limits to growth that the processes of climate change, population expansion, and resource depletion will place on agricultural producers in the 21st century (FAO 2012). In response, scientists are employing biotechnology to create new improved seed varieties. However, developing improved seed technology (IST) involves complex and controversial issues that span across disciplines in the biological and social sciences (see Box 1). In this policy brief, we emphasize the need to better examine the gender and social impacts of advancements in seed technology. Based on a detailed review of the literature, we determine that despite recent …
Agriculture/ Graduate Students/ Carlson & Bracke/ Purdue University/ 2014, Jake Carlson, Marianne S. Bracke
Agriculture/ Graduate Students/ Carlson & Bracke/ Purdue University/ 2014, Jake Carlson, Marianne S. Bracke
Data Information Literacy Case Study Directory
Librarians at Purdue University had the opportunity to develop a semester long data information literacy program to ten students in the College of Agriculture. The program was run as a pilot to test out ideas and approaches in teaching data literacy competencies to students. Topics included high level subjects such as data lifecycles, data management planning, metadata and sharing data, along with practical issues such as file naming conventions, developing a metadata record for a data set and depositing data into a repository. Materials in this case study include weekly lesson plans, slide decks, assignments, an application and other documents …
Agriculture In A Water Scarce World, Allison Roberts, Amjad Assi, Bassel Daher, Men Li
Agriculture In A Water Scarce World, Allison Roberts, Amjad Assi, Bassel Daher, Men Li
Student Papers in Public Policy
According to the McKinsey report (2009), the world is facing a water scarcity challenge where agriculture is its predominant consumer. It accounts for approximately 3100 billion m3, or 71 percent of global water withdrawals today, and is expected to increase to 4500 billion m3 by 2030. This increase is due to a number of factors: growing population and the ever growing necessity to cater for its food needs, economic growth, the variability of precipitation trends and increase in global temperatures. In addition to the increase in water scarcity, the agricultural sector faces an enormous challenge of producing …
Food Security And State: Policy Considerations For The Contemporary Food Crisis, Mangala Subramaniam, Christopher Bunka
Food Security And State: Policy Considerations For The Contemporary Food Crisis, Mangala Subramaniam, Christopher Bunka
Purdue Policy Research Institute (PPRI) Policy Briefs
In 1996, The World Food Summit (WFS) set a target to eradicate hunger in all countries and an immediate goal to half the number of undernourished people by 2015. Backed by the United Nations (UN), international organizations launched a global effort with the intent of achieving food security for all people. A variety of approaches were employed, including the distribution of food aid and farming supplies, skills training in agricultural development, funding for country-specific research, and legal counsel for states. Despite international efforts, over a decade later the number of undernourished was calculated to have risen by nearly 60 million …
Measuring The Impacts Of Agricultural Input Subsidies In Sub-Saharan Africa: Evidence From Malawi's Farm Input Subsidy Program, Gerald E. Shively, Jacob Ricker-Gilbert
Measuring The Impacts Of Agricultural Input Subsidies In Sub-Saharan Africa: Evidence From Malawi's Farm Input Subsidy Program, Gerald E. Shively, Jacob Ricker-Gilbert
Purdue Policy Research Institute (PPRI) Policy Briefs
Malawi, a small, land-locked country in south Eastern Africa has been at the forefront of the recent push to reestablish subsidies as a way of boosting agricultural production and improving food security, especially among the poor. Its programs have been widely observed, scrutinized, and emulated. This policy brief examines Malawi’s Farm Input Subsidy Program (FISP) and distills a set of key research findings drawn from research conducted recently at Purdue University.
Animal Housing Legislation, Kelli Kirtley
Animal Housing Legislation, Kelli Kirtley
Student Papers in Public Policy
Legislation relating to animal housing has been a recent topic of interest in the policy arena. Relatively speaking, it is considered a novel issue; however, this legislation has existed for several years. It is only recently that public outcry has turned the attention of policymakers to confined animal housing.
Do Wind Turbines Affect Weather Conditions?: A Case Study In Indiana, Meghan F. Henschen, Brittany Herrholtz, Lacey Rhudy, Kathryn Demchak, Brian Doogs, Joshua Holland, Erik Larson, Johnny Martin, Matthew Rudkin
Do Wind Turbines Affect Weather Conditions?: A Case Study In Indiana, Meghan F. Henschen, Brittany Herrholtz, Lacey Rhudy, Kathryn Demchak, Brian Doogs, Joshua Holland, Erik Larson, Johnny Martin, Matthew Rudkin
The Journal of Purdue Undergraduate Research
Wind turbines are becoming increasingly widespread in the United States as the world looks for cleaner sources of energy. Scientists, policymakers, and citizens have strong opinions regarding the positive and negative effects of wind energy projects, and there is a great deal of misinformation about wind energy circulating on the Web and other media sources. The purpose of this study is to gain a better understanding of how the rotation of hundreds of turbines can influence local weather conditions within a wind farm and in the surrounding areas. This experiment measures temperature, atmospheric pressure, wind speed, wind direction, relative humidity, …