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Registros recuperados: 64
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Effects of Herbicide-Resistant Technology Fees on the Plant Population Decision for Cotton Production AgEcon
Larson, James A.; Roberts, Roland K.; Gwathmey, C. Owen.
This study evaluated effects on cotton net revenues of four herbicide-resistant technology policies used since 1996 by Monsanto. Results indicate that farmers may have an incentive to switch from narrow-row to wide-row cotton and to use a lower plant density when the technology fee is tied to the seeding rate.
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management.
Ano: 2006 URL: http://purl.umn.edu/21208
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OPTIMAL PLANT POPULATION FOR ULTRA-NARROW-ROW COTTON PRODUCTION AS INFLUENCED BY LINT AND TRANSGENIC SEED PRICES AgEcon
Larson, James A.; Gwathmey, C. Owen; Roberts, Roland K..
Farmers are concerned about the high costs of transgenic seed and technology fees associated with the large plant population densities recommended for ultra-narrow row cotton. This study evaluated the effects of alternative plant population density decision criteria on net revenues under different lint price and transgenic seed cost scenarios. Results indicate that farmers may be able to maximize profits by seeding for a target plant population density of approximately 15.5 plants m-2.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/36004
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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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Estimating Production Risk and Inefficiency Simultaneously: An Application to Cotton Cropping Systems AgEcon
Jaenicke, Edward C.; Frechette, Darren L.; Larson, James A..
By using a stochastic frontier framework, the mutual effect of input use on production risk and inefficiency is investigated. Disentangling this mutual effect proves important for empirical reasons, at least when applied to west Tennessee cotton systems grown after various cover crops. The most striking result is that the stochastic frontier model, when compared with a typical Just-Pope model, reorders the relative riskiness of cover-crop regimes associated with the cotton systems.
Tipo: Journal Article Palavras-chave: Cotton; Inefficiency; Just-Pope; Production risk; Stochastic production frontier; Production Economics.
Ano: 2003 URL: http://purl.umn.edu/31059
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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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Estimating Potential Economic Net Carbon Flux from U.S. Agriculture Using a High Resolution Integrated Socioeconomic-Biogeophysical Model. AgEcon
Hellwinckel, Chad M.; Torre Ugarte, Daniel de la; West, Tristram O.; Larson, James A.; Nelson, Richard G.; Travis, John; Brandt, Craig; Wilson, Bradley.
Replaced with revised version of paper 07/19/07.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/9688
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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 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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NITROGEN-FIXING WINTER COVER CROPS AND PRODUCTION RISK: A CASE STUDY FOR NO-TILLAGE CORN AgEcon
Larson, James A.; Roberts, Roland K.; Tyler, Donald D.; Duck, Bob N.; Slinsky, Stephen P..
Winter legumes can substitute for applied nitrogen fertilization of corn. Stochastic dominance was used to order net revenues from legume and applied nitrogen alternatives. Stochastic dominance orderings indicate that systems combining vetch with low applied nitrogen fertilization (50 and 100 pounds/acre, respectively) were risk inefficient. By contrast, vetch and 150 pounds/acre applied nitrogen maximized expected net revenue and was risk efficient for a wide range of risk-averse and risk-seeking behavior. Farmers with these risk attitudes may not reduce applied nitrogen if they switch to a vetch cover. Extremely risk-averse or risk-seeking farmers would not prefer winter legumes.
Tipo: Journal Article Palavras-chave: Legume winter crops; Nitrogen; Risk premiums; Stochastic dominance; Crop Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/15098
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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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PRODUCTION RISK REVISITED IN A STOCHASTIC FRONTIER FRAMEWORK: EVALUATING NOISE AND INEFFICIENCY IN COVER CROP SYSTEMS AgEcon
Jaenicke, Edward C.; Larson, James A..
This paper investigates both risk and technical inefficiency in a general stochastic frontier framework that is consistent with the Just-Pope framework. After applying the model to two separate cash crop-cover crop systems, the more general stochastic frontier model is found to reorder the noisiness of alternative cover crop regimes.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Risk and Uncertainty.
Ano: 2001 URL: http://purl.umn.edu/20477
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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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INCENTIVES FOR SWITCHING AGRICULTURAL LAND TO CARBON SEQUESTERING NO-TILLAGE: WHAT DURATION ARE INCENTIVES NECESSARY? AgEcon
Hellwinckel, Chad M.; Larson, James A.; Torre Ugarte, Daniel de la.
Fourteen long term side-by-side tillage practice experiments were studied to analyze if no-tillage yields improved through time allowing incentives to decline. In the majority of cases, no significant increase in no-till yield is evident. Incentives may need to be permanent if switched acres are to remain using no-tillage practices.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/35219
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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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Factors Affecting Hay Supply and Demand in Tennessee AgEcon
Bazen, Ernest F.; Roberts, Roland K.; Travis, John; Larson, James A..
Understanding the interactions between supply and demand for hay is important because of hay’s significance to the agricultural sector and economy, and because hay is an important crop on highly erodible soils. As an example, Tennessee has the most erodible cultivated cropland in the United States (Denton, 2000), nearly half of the state’s current CRP acreage contracts are set to expire in 2007 (U.S. Department of Agriculture, 2006), and hay is one of the most economically important crops produced in the state (U.S. Department of Agriculture, 2004). Cross (1999) attributed the upward trend in Tennessee hay acreage since 1980 to an increasing number of farmers who were searching for alternative production activities, such as hay, pasture and livestock, to...
Tipo: Conference Paper or Presentation Palavras-chave: Acreage response; Derived demand; Elasticities; Hay; Inverse demand function; Price flexibilities; Yield response; Crop Production/Industries; Demand and Price Analysis; D.
Ano: 2008 URL: http://purl.umn.edu/6889
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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
Registros recuperados: 64
Primeira ... 1234 ... Última
 

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