Open Access. Powered by Scholars. Published by Universities.®

Agriculture Commons

Open Access. Powered by Scholars. Published by Universities.®

23,727 Full-Text Articles 18,543 Authors 1,382,026 Downloads 129 Institutions

All Articles in Agriculture

Faceted Search

23,727 full-text articles. Page 1 of 304.

Cover Crop Effect On Subsequent Wheat Yield In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Robert K. Higgins, Gary W. Hergert, Johnathon D. Holman, Merle F. Vigil 2016 USDA-ARS

Cover Crop Effect On Subsequent Wheat Yield In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Robert K. Higgins, Gary W. Hergert, Johnathon D. Holman, Merle F. Vigil

David C. Nielsen

Crop production systems in the water-limited environment of the semiarid central Great Plains may not have potential to profitably use cover crops because of lowered subsequent wheat (Triticum asestivum L.) yields following the cover crop. Mixtures have reportedly shown less yield-reducing effects on subsequent crops than single-species plantings. This study was conducted to determine winter wheat yields following both mixtures and single-species plantings of spring-planted cover crops. The study was conducted at Akron, CO, and Sidney, NE, during the 2012–2013 and 2013–2014 wheat growing seasons under both rainfed and irrigated conditions. Precipitation storage efficiency before wheat planting, wheat ...


The Real Footprint Of Electric Vehicles, And What That Could Mean For Our Future, Krista Brown 2016 Colby College

The Real Footprint Of Electric Vehicles, And What That Could Mean For Our Future, Krista Brown

Journal of Environmental and Resource Economics at Colby

This paper looks at the impact of electric vehicles on CO2 emissions specifically based on the type of electricity used in each New England state analyzed. The research looks at the question of whether or not emissions will in fact be lowered as electric cars start to take the majority of vehicles used instead of the conventional cars that take up a much larger percent of the motor vehicles used today. Taking into account the use of electricity and how many sources of electricity also release a substantial amount of emissions, we see how valid the public opinion of electric ...


The Effect Of The Deer Population On The Number Of Car Accidents, Timothy J. Hallock Jr 2016 Colby College

The Effect Of The Deer Population On The Number Of Car Accidents, Timothy J. Hallock Jr

Journal of Environmental and Resource Economics at Colby

This paper examines the relationship between the deer population and the number of car accidents in New York State from 2002-2012. Data collected includes information on the amount of deer hunted, the number of car accidents, and the number of hunting permits issued. This paper also involves a county level analysis within New York State of 56 counties from 2007 - 2012. An important part of analysis of this paper is the examination of the Buck population vs. the Doe population on the number of car accidents. This is an important study because of its possible policy implications regarding the amount ...


The Effect Of Information On Avoidance Behavior And Bicycle Transportation: A Study Of “Spare The Air” And Bay Area Bikeshare, Paige W. Whistler 2016 Colby College

The Effect Of Information On Avoidance Behavior And Bicycle Transportation: A Study Of “Spare The Air” And Bay Area Bikeshare, Paige W. Whistler

Journal of Environmental and Resource Economics at Colby

This paper seeks to address the effect of “Spare the Air” pollution control alerts in the San Francisco Bay Area in California on the use of Bay Area BikeShare as a form of transportation. By observing the daily alerts on the duration of rides using BikeShare, this paper observes if STA ozone alerts are effective in changing human behavior. The results show that only as a subscriber to the BikeShare program and on an alert day does duration decrease whereas customers regardless of if it is an alert day will ride more often and at longer distances. The results contradict ...


Socioeconomic Attributes’ Relationship To Green Commercial Office Buildings, Tianyang Zhou 2016 Colby College

Socioeconomic Attributes’ Relationship To Green Commercial Office Buildings, Tianyang Zhou

Journal of Environmental and Resource Economics at Colby

This paper examines the relationship between the socioeconomic attributes of a state and its green commercial office space adaptation. I hypothesize that a state with high socioeconomic status will have a high green building adoption. Additionally, the high socioeconomic status states may be more likely to invest in green commercial buildings with higher LEED certification levels, and various types of LEED commericial office projects are affected by the socoeconomic attributes differently.


Do Peers Get Punished: Stock Market Effect Of Bp Oil Spill On Peers, Yuga Koda 2016 Colby College

Do Peers Get Punished: Stock Market Effect Of Bp Oil Spill On Peers, Yuga Koda

Journal of Environmental and Resource Economics at Colby

This paper examines the stock market reaction to the British Petroleum oil spill on April 20, 2010. This event study looks at different sectors that may be affected by the oil spill. It finds that different industries do not have significant abnormal returns, with two exceptions. First, utilities companies have a very small positive abnormal return for a short period of time after the incident. Second, when only looking at BP's direct competitors, there is a statistically significant negative abnormal return, implying that BP's competitors are punished for BP's mishap.


Media Effects On Solar Panel Installations Across 20 States, Casey Romeo 2016 Colby College

Media Effects On Solar Panel Installations Across 20 States, Casey Romeo

Journal of Environmental and Resource Economics at Colby

This paper looks at the relationship between media coverage of solar power and the solar panel installation at a state level. Specifically, it aims to find if more newspaper articles cause more households to adopt solar energy. Use data from 20 states from 2009 to 2014. I find that there is a modest, yet positive and statistically significant relationship between newspaper articles and installations, which suggests that the media does influence the decision to install solar panels. There is possible endogeneity between these two variables. Disentangling this endogeneity is beyond the scope of this research and would be a topic ...


Stock Market Reactions To The Iarc Announcement Linking Red Meat And Processed Meat To Cancer, Scott B. Lehman 2016 Colby College

Stock Market Reactions To The Iarc Announcement Linking Red Meat And Processed Meat To Cancer, Scott B. Lehman

Journal of Environmental and Resource Economics at Colby

This study investigates how food companies were affected by the International Agency for Research on Cancer’s report that linked processed meat and red meat consumption to increased risk of cancer. The results indicate that neither fast food companies nor meat producers were greatly affected by the announcement in the days immediately following the release.


Who Wants The Right To Know? An Analysis Of Gmo-Labeling In California, Sylvia M. Xu 2016 Colby College

Who Wants The Right To Know? An Analysis Of Gmo-Labeling In California, Sylvia M. Xu

Journal of Environmental and Resource Economics at Colby

There are many studies that have been done to examine what types of voting behavior or patterns are present when voting for environmental ballot measures. This paper examines what characteristics of people are likely to cause them to support Proposition 37 in California, an initiative that, if passed, would require GMO-labeling on all genetically modified foods. Using voting data at a zip code level, I use OLS regression to identify specifically what type of political party, education, occupation, household status, and income levels are more likely to support the bill. I also run weighted regressions by population and number of ...


Invited Introduction To Jerec, Matthew Kotchen 2016 Yale University and NBER

Invited Introduction To Jerec, Matthew Kotchen

Journal of Environmental and Resource Economics at Colby

No abstract provided.


Welcome By The Editor, Nathan W. Chan 2016 Colby College

Welcome By The Editor, Nathan W. Chan

Journal of Environmental and Resource Economics at Colby

No abstract provided.


Comparison Of Terrain Indices And Landform Classification Procedures In Low-Relief Agricultural Fields, Derek A. Evans, Karl W. J. Williard, Jon E. Schoonover 2016 Southern Illinois University Carbondale

Comparison Of Terrain Indices And Landform Classification Procedures In Low-Relief Agricultural Fields, Derek A. Evans, Karl W. J. Williard, Jon E. Schoonover

Journal of Geospatial Applications in Natural Resources

Landforms control the spatial distribution of numerous factors associated with agronomy and water quality. Although curvature and slope are the fundamental surface derivatives used in landform classification procedures, methodologies for landform classifications have been performed with other terrain indices including the topographic position index (TPI) and the convergence index (CI). The objectives of this study are to compare plan curvature, the convergence index, profile curvature, and the topographic position index at various scales to determine which better identifies the spatial variability of soil phosphorus (P) within three low relief agricultural fields in central Illinois and to compare how two methods ...


Spatial Analysis Of Forest Crimes In Mark Twain National Forest, Missouri, Karun Pandit, Eddie Bevilacqua, Giorgos Mountrakis, Robert W. Malmsheimer 2016 SUNY ESF

Spatial Analysis Of Forest Crimes In Mark Twain National Forest, Missouri, Karun Pandit, Eddie Bevilacqua, Giorgos Mountrakis, Robert W. Malmsheimer

Journal of Geospatial Applications in Natural Resources

Forest crime mitigation has been identified as a challenging issue in forest management in the United States. Knowledge of the spatial pattern of forest crimes would help in wisely allocating limited enforcement resources to curb forest crimes. This study explores the spatial pattern of three different types of forest crimes: fire crime, illegal timber logging crime, and occupancy use crime in the Salem-Patosi Ranger District of Mark Twain National Forest. Univariate and bivariate Ripley’s K-functions were applied to explore the spatial patterns in crime events, like clustering and attraction among forest crime types. Results reveal significant clustering for each ...


Discordant Data And Interpretation Of Results From Wildlife Habitat Models, Anita T. Morzillo, Michael G. Wing, Justin Long 2016 Stephen F. Austin State University

Discordant Data And Interpretation Of Results From Wildlife Habitat Models, Anita T. Morzillo, Michael G. Wing, Justin Long

Journal of Geospatial Applications in Natural Resources

Wildlife habitat management is an important part of natural resource management. As a result, there are a large number of models and tools for wildlife habitat assessment. A consequence of the many assessment tools is inconsistency when comparing results between tools, which may lead to potential confusion management decisions. Our objective was to compare results from two wildlife habitat models – one being relatively coarse (HUC5) scale and not spatially dynamic and the other being finer scale spatial data based on a 30 m spatial resolution –for habitat assessment of three species across the West Cascades of Oregon: Northern spotted owl ...


Udaf Scbg Jujube_New Fruit Crop For Utah - Final Report.Pdf, Roger Kjelgren 2016

Udaf Scbg Jujube_New Fruit Crop For Utah - Final Report.Pdf, Roger Kjelgren

Roger Kjelgren

1.     Jujube (Ziziphus jujuba Mill.; also known as a Chinese date) is a drought tolerant fruit tree unknown in Utah but is widely grown in Asia for fruit quality and health benefits, both fresh and dried. Jujube tolerance of cold and dry conditions in China ostensibly suggests that it should tolerate Utah’s cold, dry and high pH conditions.  Jujube’s drought tolerance is partly due to small, glossy leaves and deep root system that are also attractive for low water landscaping, particularly edible landscaping, and possibly small fruit production in Utah.  However, there has been no systematic evaluation of ...


Growing South Dakota, Christie Delfanian, Sydney Sleep, Mike Barber 2016 South Dakota State University

Growing South Dakota, Christie Delfanian, Sydney Sleep, Mike Barber

Growing South Dakota (College of Agriculture & Biological Sciences publication)

This issue is the 2015 SDSU Agricultural Experiment Station Annual Report

Contents:

[Page] 2: Director’s Message

[Page] 3: Concentrating on Cattle: Researcher Studying Mechanics to Improve Reproduction Efficiency in Beef Cattle

[Page] 5: At the Forefront: SDSU Diagnostic Lab Scientists Sequence Avian Influenza Genome

[Page] 6: Seeking Superior Wheat: Breeder Using Extensive Genome Testing to Improve Winter Wheat Cultivars

[Page] 8: Profiles in Leadership: Plant and Fungi Interactions May Offer New Plant Production Possibilities

[Page] 9: Targeting Emerging Diseases: Plant Pathologists Working to Better Manage Soybean & Sunflower Diseases

[Page] 10: Compelling New Crop: Carinata Offers Potential for Crop Diversity ...


Subfield Profitability Analysis Reveals An Economic Case For Cropland Diversification, Elke Brandes, Gabriel S. McNunn, Lisa A. Schulte, Ian J. Bonner, David J. Muth Jr., Bruce A. Babcock, Bhavna Sharma, Emily A. Heaton 2016 Iowa State University

Subfield Profitability Analysis Reveals An Economic Case For Cropland Diversification, Elke Brandes, Gabriel S. Mcnunn, Lisa A. Schulte, Ian J. Bonner, David J. Muth Jr., Bruce A. Babcock, Bhavna Sharma, Emily A. Heaton

Agronomy Publications

Public agencies and private enterprises increasingly desire to achieve ecosystem service outcomes in agricultural systems, but are limited by perceived conflicts between economic and ecosystem service goals and a lack of tools enabling effective operational management. Here we use Iowa—an agriculturally homogeneous state representative of the Maize Belt—to demonstrate an economic rationale for cropland diversification at the subfield scale. We used a novel computational framework that integrates disparate but publicly available data to map ~3.3 million unique potential management polygons (9.3 Mha) and reveal subfield opportunities to increase overall field profitability. We analyzed subfield profitability for ...


Benefits Of Exercise On Mind Function, Cindy Nelson, Shannon Cromwell 2016 Utah State Universities

Benefits Of Exercise On Mind Function, Cindy Nelson, Shannon Cromwell

All Current Publications

Regular physical activity is one of the best ways to improve overall health. This fact sheet discusses exercise and the brain, exercise and cognition, exercise and stress, and effective strategies for boosting physical and mental health.



Use Of Plastic Mulch For Vegetable Production, Tiffany Maughan, Dan Drost 2016 Utah State University

Use Of Plastic Mulch For Vegetable Production, Tiffany Maughan, Dan Drost

All Current Publications

Plastic mulches are used commercially for both vegetables and small fruit crops. Vegetable crops well suited for production with plastic mulch are typically high value row crops. This fact sheet describes the advantages, disadvantages, installation, and planting considerations. It includes sources for plastic and equipment.


Utah Air Quality: Pm 2.5, Randy Martin, Roger Coulombe, Roslynn Brain 2016 Utah State University

Utah Air Quality: Pm 2.5, Randy Martin, Roger Coulombe, Roslynn Brain

All Current Publications

Particulate matter two-point-five (PM2.5) is a tiny suspended particle of air pollution that can penetrate deeply into our lungs and potentially enter the bloodstream. The 2.5 unit means that the particles are smaller than 2.5 micrometers (a micrometer is one millionth of a meter). In Cache Valley and along the Wasatch Front, these tiny particles form and accumulate to unhealthy levels when air is trapped in the bottom of the valley during cold winter days.


Digital Commons powered by bepress