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Registros recuperados: 80
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Estimating Agricultural Impacts of Expanded Ethanol Production: Policy Implications for Water Demand and Quality AgEcon
Torre Ugarte, Daniel de la; He, Lixia; Jensen, Kimberly L.; English, Burton C.; Willis, Kaelin.
Feedstock production for large scale development of the U.S. ethanol industry and introduction of cellulose–to-ethanol technology will require extensive changes in land use and impact water demand and quality. This study compares two scenarios: attaining a 60 billion gallon per year target of ethanol by 2030 and a billion gallon per year biodiesel target by 2012 with cellulose-to-ethanol technology introduced in 2012 and also delayed until 2015. Results suggest water demands and quality will vary regionally with cellulosic feedstock production. Policy emphasis on reduced and no-till practices needs to be complementary to increased crop residue use.
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/6700
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Effects of Demographics and Attitudes on WTP for Fuel Import Reductions through Ethanol Purchases AgEcon
Jensen, Kimberly L.; Clark, Christopher D.; English, Burton C..
Energy economics
Tipo: Presentation Palavras-chave: Imported fuel; Willingness to pay; Marketing.
Ano: 2012 URL: http://purl.umn.edu/119146
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Factors Influencing Cotton Farmers’ Perceptions about the Importance of Information Sources in Precision Farming Decisions AgEcon
Velandia, Margarita M.; Lambert, Dayton M.; Mendieta, Maria P.; Roberts, Roland K.; Larson, James A.; English, Burton C.; Rejesus, Roderick M.; Mishra, Ashok K..
Information generated by precision farming technologies is of particular importance to producers. Precision farming technologies implies the ability to improve the management of production factors using site-specific information. This study examines factors influencing cotton farmers’ perceptions about the importance of crop consultants, farm input dealerships, Extension, other farmers, trade shows, the Internet and printed news/media for making precision farming decisions using a rank ordered logit model (ROLM). Results suggest that age, land tenure, income, percentage of income from farming, and location may affect farmers’ perceptions about the importance of different information sources when making decisions about precision farming technologies....
Tipo: Conference Paper or Presentation Palavras-chave: Information-source preferences; Rank Ordered Logit Model; Precision Farming; Production Economics; Research Methods/ Statistical Methods; Q16; C25.
Ano: 2011 URL: http://purl.umn.edu/103752
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Precision Agriculture Technology Adoption for Cotton Production AgEcon
Paxton, Kenneth W.; Mishra, Ashok K.; Chintawar, Sachin; Larson, James A.; Roberts, Roland K.; English, Burton C.; Lambert, Dayton M.; Marra, Michele C.; Larkin, Sherry L.; Reeves, Jeanne M.; Martin, Steven W..
Many studies on the adoption of precision technologies have generally used logit models to explain the adoption behavior of individuals. This study investigates factors affecting the number of specific types of precision agriculture technologies adopted by cotton farmers. Particular attention is given to the influence of spatial yield variability on the number of precision farming technologies adopted, using a Count data estimation procedure and farm-level data. Results indicate that farmers with more within-field yield variability adopted a larger number of precision agriculture technologies. Younger and better educated producers and the number of precision agriculture technologies were significantly correlated. Finally, farmers using computers for...
Tipo: Conference Paper or Presentation Palavras-chave: Precision technologies; Poisson; Negative Binomial; Count-data method; GIS; Education; Cotton; Agricultural and Food Policy; Farm Management; Labor and Human Capital; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/56486
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Reasons for Adopting Precision Farming: A Case Study of U.S. Cotton Farmers AgEcon
Pandit, Mahesh; Mishra, Ashok K.; Paudel, Krishna P.; Larkin, Sherry L.; Rejesus, Roderick M.; Lambert, Dayton M.; English, Burton C.; Larson, James A.; Velandia, Margarita M.; Roberts, Roland K.; Kotsiri, Sofia.
We used survey data collected from cotton farmers in 12 southern U.S. states to identify factors influencing cotton farmers’ decisions to adopt precision farming. Using a seemingly unrelated ordered probit model, we found that younger, educated and computer literate farmers chose precision farming for profit reason. Farmers who perceived precision farming to be profitable adopt it to be at the forefront of agricultural technology. We also found that farmers who were concerned with environment emphasize precision farming adoption as a reason to improve environmental quality. Our results also indicate that farmers in coastal states such as Alabama, Mississippi, and North Carolina chose environmental benefits as a reason for precision farming technology...
Tipo: Conference Paper or Presentation Palavras-chave: Precision technologies; Seemingly unrelated ordered probit; Cotton; Agricultural Finance; Farm Management; Q16; C35.
Ano: 2011 URL: http://purl.umn.edu/98575
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Executive Summary: Risk, Infrastructure and Industry Evolution Conference, June 24-25, 2008, Berkeley, California AgEcon
English, Burton C.; Jensen, Kimberly L.; Menard, R. Jamey.
Tipo: Journal Article Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/48723
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Cost Analysis of Alternative Harvest and Storage Methods for Switchgrass in the Southeastern U.S. AgEcon
Larson, James A.; Mooney, Daniel F.; English, Burton C.; Tyler, Donald D..
This study evaluated the potential impacts of dry matter losses from alternative harvest and storage methods on the costs of growing switchgrass for energy production. Data from a switchgrass bale harvest and storage experiment at Milan, TN, indicate that storage losses for covered rectangular bales were greater than for covered round bales. In addition, the cost of delivered feedstock increased with longer storage times because of larger dry matter losses. Even though storage losses were higher with uncovered large round bales, production costs were the lowest because costs of storage were minimal compared to other storage methods.
Tipo: Conference Paper or Presentation Palavras-chave: Bioenergy; Dry matter loss; Storage; Production Economics; D20; D21; D81; D86; Q13; Q42; P42.
Ano: 2010 URL: http://purl.umn.edu/56518
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Effects of No-Tillage Production Practices on Crop Yields as Influenced by Crop and Growing Environment Factors AgEcon
Toliver, Dustin K.; Larson, James A.; English, Burton C.; Roberts, Roland K.; Torre Ugarte, Daniel de la; West, Tristram O..
This paper evaluated differences between yields of no-tillage compared to conventional or reduced tillage and their associated downside risk. Six crops were evaluated along with how those yields and risks differed by various environmental factors such geographic location, precipitation, soil type and how long the practice had been used.
Tipo: Thesis or Dissertation Palavras-chave: No-tillage; Conservation; Conventional tillage; Downside-risk; Yield; Agribusiness; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Risk and Uncertainty.
Ano: 2011 URL: http://purl.umn.edu/98818
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Factors Influencing Consumer Likelihood of Purchasing a Flexible-Fuel or Hybrid Automobile AgEcon
Li, Xiaogu; Clark, Christopher D.; Jensen, Kimberly L.; English, Burton C.; Yen, Steven T..
Developing fuels and vehicles that reduce our reliance on fossil fuels has become a priority due to the threat of global climate change and desire for reduced dependence on oil imports. Flexible-fuel vehicles that can run on ethanol/gasoline blends of up to 85% ethanol and hybrid electric vehicles present two such opportunities. While production of both flexible-fuel and hybrid vehicles is increasing, there is still a great deal of uncertainty about how consumers will respond to these products. To address this uncertainty, data was collected through an online survey of automobile owners that asked respondents how likely they were to choose either a flexible-fuel or hybrid vehicle as their next vehicle. A bivariate probit model was used to jointly analyze...
Tipo: Conference Paper or Presentation Palavras-chave: Flexible-fuel vehicles; Ethanol; E85; Hybrid electric vehicles; Demand and Price Analysis; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/60981
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Factors Influencing Selection of Information Sources by Cotton Producers Considering Adoption of Precision Agriculture Technologies AgEcon
Velandia, Margarita M.; Lambert, Dayton M.; Jenkins, Amanda; Roberts, Roland K.; Larson, James A.; English, Burton C.; Martin, Steven W..
Acknowledgements: The authors thank Cotton Incorporated and the Tennessee Agricultural Experiment Station for financial support
Tipo: Conference Paper or Presentation Palavras-chave: Information source use decisions; Precision Agriculture Technologies; Extension; Media; Private sources; Multivariate Probit; Teaching/Communication/Extension/Profession; Q12; Q16.
Ano: 2009 URL: http://purl.umn.edu/49326
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Beyond Corn and Soybeans: Cellulose Feedstocks (PowerPoint) AgEcon
Walsh, Marie E.; English, Burton C.; Torre Ugarte, Daniel de la; Hellwinckel, Chad M.; Menard, R. Jamey; Jensen, Kimberly L.; Nelson, Richard G..
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/37457
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Economic Analysis of Farm-Level Supply of Biomass Feedstocks for Energy Production Under Alternative Contract Scenarios and Risk AgEcon
Larson, James A.; English, Burton C.; He, Lixia.
Tipo: Journal Article Palavras-chave: Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/48706
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FACTORS INFLUENCING WEST TENNESSEE FARMERS' WILLINGNESS TO PAY FOR A BOLL WEEVIL ERADICATION PROGRAM AgEcon
Larson, James A.; Collins, Rebecca L.; Roberts, Roland K.; English, Burton C..
Data from a survey were used to evaluate Tennessee farmers' willingness to pay for the boll weevil eradication program. Producer experience, boll weevil control costs, and attitudes about boll weevil damage and insecticide usage after the program were significant explanatory variables and had a positive influence on willingness to pay.
Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; Cotton; Regional pest control; Pest management groups; Demand and Price Analysis; Resource /Energy Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/21573
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Analysis of Factors Affecting Farmers’ Willingness to Adopt Switchgrass Production AgEcon
Qualls, D. Joshua; Jensen, Kimberly L.; English, Burton C.; Larson, James A.; Clark, Christopher D..
In the United States, biomass is the largest source of renewable energy accounting for over 3 percent of the energy consumed domestically and is currently the only source for liquid, renewable, transportation fuels. Continued development of biomass as a renewable energy source is being driven in large part by the Energy Independence and Security Act of 2007, which mandates that by 2022 at least 36 billion gallons of fuel ethanol be produced, with at least 16 billion gallons being derived from cellulose, hemi-cellulose, or lignin. However, the market for cellulosic biofuels is still under development. As such, little is known about producer response to feedstock prices paid for dedicated energy crops. While there have been some studies done on factors that...
Tipo: Conference Paper or Presentation Palavras-chave: Switchgrass; Farmer Adoption; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy; Q12; Q16.
Ano: 2011 URL: http://purl.umn.edu/98625
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SPATIAL BREAK-EVEN VARIABILITY FOR CUSTOM HIRE VARIABLE RATE TECHNOLOGY ADOPTION AgEcon
Mahajanashetti, S.B.; English, Burton C.; Roberts, Roland K..
A theoretical model identified ranges of spatial variability required within multiple-land-class fields for economically viable variable rate technology (VRT) and the spatial variability required for maximum return to VRT. An example illustrated that return to VRT and the viable range of spatial variability increased for higher corn and nitrogen prices.
Tipo: Conference Paper or Presentation Palavras-chave: Precision farming; Site-specific farming; Nitrogen; Corn; Spatial variability; Yield variability; Profit function; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/21676
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Consumers' Willingness to Pay for Eco-Certified Wood Products AgEcon
Jensen, Kimberly L.; Jakus, Paul M.; English, Burton C.; Menard, R. Jamey.
We use Kristrom’s simple spike model to assess the factors influencing consumers’ willingness to pay a premium for a variety of certified wood products. A survey of over 1,600 Pennsylvania and Tennessee residents found that approximately 35% were willing to pay some positive “premium” for environmentally certified wood products. For three types of weed products (a $28.80 shelf, a $199 chair, and a $799 table), we find the estimated market premiums to be $3.74, $15.94, and $45.07, respectively.
Tipo: Journal Article Palavras-chave: Eco-certification; Eco-labeling; Price premium; Spike models; Q5; Q23.
Ano: 2004 URL: http://purl.umn.edu/43452
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The Variable-Rate Input Application Decision for Multiple Inputs with Interactions AgEcon
Roberts, Roland K.; English, Burton C.; Larson, James A..
Research has evaluated the relative profitability of variable-rate (VRT) versus uniform-rate (URT) application of a single input in fields with multiple management zones. This study addresses map-based VRT decisions for multiple inputs in fields with multiple management zones. The decision-making framework is illustrated for nitrogen and water applied to irrigated cotton in fields with three management zones. Results suggest traditional methods of determining VRT application of a single input may by suboptimal if interactions exist among VRT inputs and URT inputs. Implications are that a systems approach to multiple-input VRT decisions can produce increased net returns to VRT.
Tipo: Journal Article Palavras-chave: Breakeven analysis; Cotton; Economic feasibility; Multiple-inputs; Precision farming; Variable-rate technology; Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/8616
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Adoption of No-Tillage Practices, Other Conservation-Tillage Practices and Herbicide-Resistant Cotton Seed, and Their Synergistic Environmental Impacts AgEcon
Roberts, Roland K.; English, Burton C.; Gao, Qi; Larson, James A..
If adoption of herbicide-resistant seed and adoption of conservation-tillage practices are determined simultaneously, adoption of herbicide-resistant seed could indirectly reduce soil erosion and adoption of conservation-tillage practices could indirectly reduce residual herbicide use and increase farm profits. Our objective was to evaluate the relationship between these technologies for Tennessee cotton production. Evidence from simultaneous estimation of a trinomial logit model for adoption of no-tillage, other conservation-tillage, and conventional-tillage practices and a binomial logit model for adoption of herbicide-resistant and conventional cotton seed suggests a simultaneous relationship. The elasticity for acreage in herbicide-resistant seed...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/21304
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VARIABLE RATE NITROGEN APPLICATION ON CORN FIELDS: THE ROLE OF SPATIAL VARIABILITY AND WEATHER AgEcon
Roberts, Roland K.; Mahajanashetti, S.B.; English, Burton C.; Larson, James A.; Tyler, Donald D..
Meta-response functions for corn yields and nitrogen losses were estimated from EPIC-generated data for three soil types and three weather scenarios. These metamodels were used to evaluate variable rate (VRT) versus uniform rate (URT) nitrogen application technologies for alternative weather scenarios and policy option. Except under very dry conditions, returns per acre for VRT were higher than for URT and the economic advantage of VRT increased as realized rainfall decreased from expected average rainfall. Nitrogen losses to the environment from VRT were lower for all situation examined, except on fields with little spatial variability.
Tipo: Journal Article Palavras-chave: Corn; Environment; Meta-response functions; Nitrogen restriction; Precision farming; Site-specific management; Spatial variability; Weather variability; Crop Production/Industries.
Ano: 2002 URL: http://purl.umn.edu/15512
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Technology Assessment and the National Model AgEcon
Alt, Klaus; Heady, Earl O.; English, Burton C..
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1981 URL: http://purl.umn.edu/49294
Registros recuperados: 80
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