Consulta: creatorFacets:"Larson,   James A."
Registros recuperados: 64
Data/hora: 16/06/2024 06:46:39

Estimating the Impacts of Storage Dry Matter Losses on Switchgrass Production
Provedor de dados: 31
Autores: Larson,   James A.; Mooney,   Daniel F.; English,   Burton C.; Tyler,   Donald D.
This poster estimates dry matter losses as a function of harvest method, storage treatment, and time in storage. We then calculate the cost to store switchgrass bales under alternate harvest method and storage treatment scenarios; and determine the breakeven harvest method and storage treatment as a function of biomass price and time in storage.
Tipo: Conference Paper or Presentation
Palavras-chave: Biomass; Bioenergy crops; Function form; Sustainable systems; Farm Management; Production Economics; Q10; Q42.
Ano: 2010
URL: http://purl.umn.edu/61530

Will Variable Rate Application Technology Pay in Tennessee?
Provedor de dados: 31
Autores: Cochran,   Rebecca L.; Larson,   James A.; Roberts,   Roland K.; English,   Burton C.
Costs differ among variable rate application systems.  Most feasible in Tennessee are the 1-bin and 2-bin spreader beds mounted to existing chassis with an owner-added variable rate controller and global positioning system.  Truck spreader systems required more acreage or larger custom charges making it difficult to breakeven and earn a profit.
Tipo: Conference Paper or Presentation
Palavras-chave: Cotton; Grid soil sampling; Precision farming; Site-specific information; Variable rate application; Research and Development/Tech Change/Emerging Technologies.
Ano: 2004
URL: http://purl.umn.edu/34678

Optimal Nitrogen Fertilization Rates in Winter Wheat Production as Affected by Risk, Disease, and Nitrogen Source
Provedor de dados: 31
Autores: Roberts,   Roland K.; Walters,   Jeremy T.; Larson,   James A.; English,   Burton C.; Howard,   Donald D.
Interactions among the nitrogen (N) fertilization rate, N source, and disease severity can affect mean yield and yield in conservation tillage wheat production.  A Just-Pope model was used to evaluate the effects of N rate, N source, and disease on the spring N fertilization decision.  Ammonium nitrate (AN) was the utility-maximizing N source, regardless of risk preferences.  The net-return-maximizing AN rate was 92 lb N/acre, providing $0.52/acre higher net returns than the best alternative N source (urea).  If a farmer could anticipate a higher-than-average Take-All Root Rot infection, the difference in optimal net returns between AN and urea would increase to $35.11/acre.
Tipo: Journal Article
Palavras-chave: Certainty equivalent; Blume-Blotch; Nitrogen fertilizer; Nitrogen source; Risk; Take-All; Winter wheat; D21; D81; Q12.
Ano: 2004
URL: http://purl.umn.edu/43444

INCENTIVES FOR SWITCHING AGRICULTURAL LAND TO CARBON SEQUESTERING NO-TILLAGE:  WHAT DURATION ARE INCENTIVES NECESSARY?
Provedor de dados: 31
Autores: 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

Factors Affecting Perceived Improvements in Environmental Quality from Precision Farming
Provedor de dados: 31
Autores: Larkin,   Sherry L.; Perruso,   Larry; Marra,   Michele C.; Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Cochran,   Rebecca L.; Martin,   Steven W.
This study identified the factors that influenced whether farmers in the Southeastern United States perceived an improvement in environmental quality from adopting precision farming technologies (PFTs). Farmers with larger farms or higher yields were more likely to believe that they observed positive externalities associated with PFTs. Farmers who found PFTs profitable or who believed input reduction was important had higher probabilities whereas those with higher incomes or who were more dependent on farm income were less likely to perceive such benefits. Interestingly, the importance of environmental quality and length of time using PFTs were not found to affect the probability of perceiving an improvement in environmental quality.
Tipo: Journal Article
Palavras-chave: Precision agriculture; Site-specific farming; Variable rate application; C25; Q12; Q24.
Ano: 2005
URL: http://purl.umn.edu/42787

Estimating Production Risk and Inefficiency Simultaneously: An Application to Cotton Cropping Systems
Provedor de dados: 31
Autores: 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

Adoption of Conservation-Tillage Practices in Cotton Production
Provedor de dados: 31
Autores: Banerjee,   Swagata (Ban); Martin,   Steven W.; Roberts,   Roland K.; Larson,   James A.; Hogan,   Robert J., Jr.; Johnson,   Jason L.; Paxton,   Kenneth W.; Reeves,   Jeanne M.
Replaced with revised version of paper 10/23/07.
Tipo: Conference Paper or Presentation
Palavras-chave: Conservation tillage; Cotton; Genetically modified seed; Herbicide-resistant cotton; Stacked-gene cotton; Simultaneous logit model; Single-equation logit model; Technology adoption; Crop Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/34842

MODELING FARM AND OFF-FARM ECONOMIC LINKAGES TO ANALYZE THE IMPACTS OF AN AREA-WIDE INSECT MANAGEMENT PROGRAM ON A REGIONAL ECONOMY
Provedor de dados: 31
Autores: Suarez,   Otto P.; Larson,   James A.; English,   Burton C.
This study evaluated the impacts of the boll weevil eradication program at the farm level and on the west Tennessee region.  Budgets, an acreage response model, and an input-output model were used to evaluate direct and indirect program impacts.  The program generates small but positive economic benefits for the region.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 1999
URL: http://purl.umn.edu/35741

Factors Affecting Hay Supply and Demand in Tennessee
Provedor de dados: 31
Autores: 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

Cost Analysis of Alternative Harvest, Storage and Transportation Methods for Delivering Switchgrass to a Biorefinery from the Farmers’ perspective
Provedor de dados: 31
Autores: Wang,   Chenguang; Larson,   James A.; English,   Burton C.; Jensen,   Kimberly L.
Switchgrass for bioenergy production will require substantial storage. This study evaluated costs of alternative baling and on-farm storage systems. Rectangular bales minimize cost if switchgrass is processed immediately after harvest. However, round bales minimize cost if switchgrass is stored under cover for 200 days before transporting to the biorefinery
Tipo: Conference Paper or Presentation
Palavras-chave: Switchgrass; Baling; Storage; Transport; Costs; Farm; Biorefinery; Agricultural Finance; Farm Management; Production Economics; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/47169

EFFECTS OF RISK, DISEASE, AND NITROGEN SOURCE ON OPTIMAL NITROGEN FERTILIZATION RATES IN WINTER WHEAT PRODUCTION
Provedor de dados: 31
Autores: Howard,   Donald D.; English,   Burton C.; Larson,   James A.; Roberts,   Roland K.; Walters,   Jeremy T.
Interactions among nitrogen (N) fertilization rate, N source, and disease severity can affect mean yield and yield variance in conservation tillage wheat production.  A Just-Pope model was used to evaluate the effects of N rate, N source, and disease on the spring N-fertilization decision.  Ammonium nitrate (AN) was the utility-maximizing N source regardless of risk preferences.  The net-return-maximizing AN rate was 92 lb N/acre, providing $0.52/acre higher net returns than the best alternative N source (urea).  If a farmer could anticipate a higher than average Take-All infection, the difference in optimal net-returns between AN and urea would increase to $35.11/acre.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/34688

OPTIMAL PLANT POPULATION FOR ULTRA-NARROW-ROW COTTON PRODUCTION AS INFLUENCED BY LINT AND TRANSGENIC SEED PRICES
Provedor de dados: 31
Autores: 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

Economic Analysis of Farm-Level Supply of Biomass Feedstocks for Energy Production Under Alternative Contract Scenarios and Risk
Provedor de dados: 31
Autores: 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

The Variable-Rate Decision for Multiple Inputs with Multiple Management Zones
Provedor de dados: 31
Autores: Larson,   James A.; English,   Burton C.; Roberts,   Roland K.
Research has evaluated the relative profitability of variable-rate versus uniform-rate application of a single input in fields with multiple management zones.  This paper addresses the variable-rate decision for multiple inputs.  The decision-making framework is evaluated for nitrogen and water applied to irrigated cotton in fields with three management zones.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/35573

Effects of Alternative Lime Application Rates on Cotton Profitability with Varying Cover Crops, Nitrogen, and Tillage Methods.
Provedor de dados: 31
Autores: Cochran,   Rebecca L.; Larson,   James A.; Roberts,   Roland K.; Tyler,   Donald D.
Soil acidity and cotton yields are influenced by cover crop, nitrogen, and tillage method.  Applying half the recommended lime rate may be possible without reducing cotton yields.  Using a nitrogen intensive cover crop and applying less nitrogen should mitigate the effects on soil acidity and yields.
Tipo: Conference Paper or Presentation
Palavras-chave: Cover crops; Cotton; Lime; Nitrogen; Profitability; Soil acidity; Tillage; Crop Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/35569

FARMERS' PERCEPTIONS OF SPATIAL YIELD VARIABILITY AS INFLUENCED BY PRECISION FARMING INFORMATION GATHERING TECHNOLOGIES
Provedor de dados: 31
Autores: Roberts,   Roland K.; Larson,   James A.
This study evaluated how farmers' perceptions of spatial yield variability are influenced by precision technologies.  Farmer estimates from a mail survey were regressed on use of alternative information technologies and personal characteristics.  Results indicate that farmers who adopted yield monitors with GPS for cotton perceived significantly higher spatial yield variability.
Tipo: Conference Paper or Presentation
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2004
URL: http://purl.umn.edu/34600

ADOPTION OF SPATIAL INFORMATION GATHERING TECHNOLOGIES AND VARIABLE RATE INPUT APPLICATION TECHNOLOGIES BY COTTON FARMERS IN THE SOUTHEAST
Provedor de dados: 31
Autores: Martin,   Steven W.; Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Cochran,   Rebecca L.; Goodman,   W. Robert; Larkin,   Sherry L.; Marra,   Michele C.; Shurley,   W. Donald; Reeves,   Jeanne M.
Probit analysis identified factors influencing adoption of precision farming technologies by Southeastern cotton farmers.  Younger, more educated farmers who operated larger farms and were optimistic about the future of precision farming were most likely to adopt site-specific information technology.  The probability of adopting variable rate input application technology was higher for younger farmers who operated larger farms, owned more of the land they farmed, were more informed about the costs and benefits of precision farming, and were optimistic about the future of precision farming.  Computer use was not important possibly because custom hiring shifts the burden of computer use to agribusiness firms.
Tipo: Conference Paper or Presentation
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2004
URL: http://purl.umn.edu/34768

Economic Analysis of the Effects of Winter Cover Crops on No-Tillage  Corn Yield Response to Fertilizer Nitrogen
Provedor de dados: 31
Autores: Roberts,   Roland K.; Larson,   James A.; Tyler,   Donald D.; Duck,   Bob N.; Dillivan,   Kim D.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/35851

EFFECTS OF RISK ON OPTIMAL NITROGEN FERTILIZATION DATES IN WINTER WHEAT PRODUCTION AS AFFECTED BY DISEASE AND NITROGEN SOURCE
Provedor de dados: 31
Autores: Walters,   Jeremy T.; Roberts,   Roland K.; Larson,   James A.; English,   Burton C.; Howard,   Donald D.
Optimal fertilization dates were found for two nitrogen sources in the presence of two diseases for wheat farmers with different risk preferences.  Risk was independent of fertilization date.  Ammonium Nitrate and Urea-Ammonium Nitrate did not affect risk differently.  Ammonium Nitrate applied on March 9 was optimal regardless of risk preferences.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/35035

Changes in Producers’ Perceptions of Within-field Yield Variability Following Adoption of Cotton Yield Monitors
Provedor de dados: 31
Autores: Rejesus,   Roderick M.; Marra,   Michele C.; Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Paxton,   Kenneth W.
Tipo: Conference Paper or Presentation
Palavras-chave: Precision Farming; Risk; Yield Monitor; Yield Variability; Yield Perceptions; Spatial Yield Distributions; Within Field Variability; Farm Management; Production Economics; Risk and Uncertainty; Q12; Q16.
Ano: 2010
URL: http://purl.umn.edu/60971

The Financial Status of North Dakota Farmers and Ranchers: January 1, 1985, Survey Results
Provedor de dados: 31
Autores: Watt,   David L.; Larson,   James A.; Pederson,   Glenn D.; Ekstrom,   Brenda L.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1986
URL: http://purl.umn.edu/23166

ECONOMIC EVALUATION OF INCOME PROTECTION CHOICES FOR WEST TENNESSEE CORN PRODUCERS
Provedor de dados: 31
Autores: Philpot,   Walter; Larson,   James A.; Stokes,   Jeffrey R.
Farmers need information about the expected value and variability of net revenues for alternative crop insurance and futures hedging strategies to manage risk.  Specifically, the model will determine which risk management strategies are most desirable under various levels of risk aversion.  The unstable futures basis relation in the data used in the simulation model contributed to increased variability of net revenues.  In general, none of the crop insurance or hedging strategies markedly reduced variability of net revenue and relative riskiness when compared with the cash strategy.  Revenue Assurance strategies were the most effective at setting a floor on net revenues.  As a result, Revenue Assurance products may perform well for extremely risk averse...
Tipo: Conference Paper or Presentation
Palavras-chave: Marketing; Risk and Uncertainty.
Ano: 2000
URL: http://purl.umn.edu/21842

Risk and uncertainty at the farm level
Provedor de dados: 31
Autores: Larson,   James A.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 2008
URL: http://purl.umn.edu/48728

Adoption and Abandonment of Precision Soil Sampling in Cotton Production
Provedor de dados: 31
Autores: Walton,   Jonathan C.; Roberts,   Roland K.; Lambert,   Dayton M.; Larson,   James A.; English,   Burton C.; Larkin,   Sherry L.; Martin,   Steven W.; Marra,   Michele C.; Paxton,   Kenneth W.; Reeves,   Jeanne M.
Technology adoption in precision agriculture has received considerable attention, while abandonment has received little. Our objective was to identify factors motivating adoption and abandonment of precision soil sampling in cotton. Results indicate younger producers who farmed more cotton area, owned more of their cropland, planted more non-cotton area, used a computer, or used a Personal Digital Assistant (PDA) were more likely to adopt precision soil sampling. Those with more cotton area or who owned livestock were more likely to abandon, while those who used precision soil sampling longer, used a PDA, or used variable-rate fertilizer application were less likely to abandon.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/6215

Analyzing the Economics Values of An Alternative Preprocessing Facility in the Biomass Feedstocks - Biorefinery Supply Chain
Provedor de dados: 31
Autores: Yu,   Tun-Hsiang (Edward); Larson,   James A.; Gao,   Yuan; English,   Burton C.
It is generally believed that preprocessing procedure can reduce the transportation and storage costs of biomass feedstock for biofuel production by condensing the feedstock’s size. However, the capital costs of preprocessing facilities could be significant in the feedstock logistics system. Applying a GIS and mixed-integer mathematical programming model, this study evaluates the economic values of a preprocessing technology, stretch‐wrap baling, in the biomass feedstock supply chain for a potential commercial-scale switchgrass biorefinery in East Tennessee. Preliminary results suggest that the stretch-wrap baling equipment outperforms the conventional hay harvest methods in terms of total delivered costs. Although the densification process involves...
Tipo: Conference Paper or Presentation
Palavras-chave: Biomass feedstock; Cellulosic biofuel; Logistic costs; Preprocessing technology; Crop Production/Industries; Resource /Energy Economics and Policy; Q16; D24.
Ano: 2011
URL: http://purl.umn.edu/103993

VARIABLE RATE NITROGEN APPLICATION ON CORN FIELDS: THE ROLE OF SPATIAL VARIABILITY AND WEATHER
Provedor de dados: 31
Autores: 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

Precision Farming by Cotton Producers in Six Southern States: Results from the 2001 Southern Precision Farming Survey
Provedor de dados: 31
Autores: Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Cochran,   Rebecca L.; Goodman,   W. Robert; Larkin,   Sherry L.; Marra,   Michele C.; Martin,   Steven W.; Reeves,   Jeanne M.; Shurley,   W. Donald.
Precision Farming by Cotton Producers in Six Southern States: Results from the 2001 Southern Precision Farming Survey
Tipo: Report
Palavras-chave: Cotton; Precision farming; Survey; Agribusiness; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002
URL: http://purl.umn.edu/91331

PDA and Handheld GPS Adoption in Precision Cotton Production
Provedor de dados: 31
Autores: Walton,   Jonathan C.; Larson,   James A.; Roberts,   Roland K.; Lambert,   Dayton M.; English,   Burton C.; Larkin,   Sherry L.; Marra,   Michele C.
This research analyzed the adoption of Personal Digital Assistants (PDA) and handheld Global Positioning System (GPS) devices in cotton production. Analysis using a logit model found that younger farmers who used a crop consultant, remote-sensing, variable-rate fertilizer, and reported greater yield variability had a higher probability of adopting.
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/6839

Effects of No-Tillage Production Practices on Crop Yields as Influenced by Crop and Growing Environment Factors
Provedor de dados: 31
Autores: 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

Cost Analysis of Alternative Harvest, Storage and Transportation Methods for Delivering Switchgrass to a Biorefinery from the Farmers’ perspective
Provedor de dados: 31
Autores: Wang,   Chenguang; Larson,   James A.; English,   Burton C.; Jensen,   Kimberly L.
Switchgrass for bioenergy production will require substantial storage. This study evaluated costs of alternative baling and on-farm storage systems. Rectangular bales minimize cost if switchgrass is processed immediately after harvest. However, round bales minimize cost if switchgrass is stored under cover for 200 days before transporting to the biorefinery
Tipo: Conference Paper or Presentation
Palavras-chave: Switchgrass; Baling; Storage; Transport; Costs; Farm; Biorefinery; Agribusiness; Agricultural Finance; Environmental Economics and Policy; Farm Management; Production Economics; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/46812

PRODUCTION RISK REVISITED IN A STOCHASTIC FRONTIER FRAMEWORK: EVALUATING NOISE AND INEFFICIENCY IN COVER CROP SYSTEMS
Provedor de dados: 31
Autores: 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

Estimating Potential Economic Net Carbon Flux from U.S. Agriculture Using a High Resolution Integrated Socioeconomic-Biogeophysical Model.
Provedor de dados: 31
Autores: 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

Is Switchgrass Yield Response to Nitrogen Fertilizer Dynamic? Implications for Profitability and Sustainability at the Farm Level
Provedor de dados: 31
Autores: Mooney,   Daniel F.; Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Tyler,   Donald D.
Revised version of the paper submitted 2/11/2010
Tipo: Conference Paper or Presentation
Palavras-chave: Biomass; Energy Crops; Sequential Inputs; West Tennessee; Crop Production/Industries; Farm Management; Production Economics; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/57623

Factors Influencing Farmer Adoption of Portable Computers for Site-Specific Management: A Case Study for Cotton Production
Provedor de dados: 31
Autores: Walton,   Jonathan C.; Larson,   James A.; Roberts,   Roland K.; Lambert,   Dayton M.; English,   Burton C.; Larkin,   Sherry L.; Marra,   Michele C.; Martin,   Steven W.; Paxton,   Kenneth W.; Reeves,   Jeanne M.
Personal digital assistants (PDA) and handheld global positioning systems (GPS) have become increasingly important in cotton production but little is known about their use. This research analyzed the adoption of PDA/handheld GPS devices in cotton production. A younger farmer who used a computer in farm management and had a positive perception of Extension had a greater likelihood of adopting the devices. In addition, farmers who used complementary remote sensing, plant mapping, and grid soil sampling information were more likely to use PDA/handheld GPS devices. Finally, the COTMAN in-field decision support program from Extension also positively impacted adoption.
Tipo: Journal Article
Palavras-chave: Decision support; Information technology; Precision farming technology; Variable rate technology; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession; D21; Q12; Q16.
Ano: 2010
URL: http://purl.umn.edu/90671

Precision Agriculture Technology Adoption for Cotton Production
Provedor de dados: 31
Autores: 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

A Binary Logit Estimation of Factors Affecting Adoption of GPS Guidance Systems by Cotton Producers
Provedor de dados: 31
Autores: Banerjee,   Swagata (Ban); Martin,   Steven W.; Roberts,   Roland K.; Larkin,   Sherry L.; Larson,   James A.; Paxton,   Kenneth W.; English,   Burton C.; Marra,   Michele C.; Reeves,   Jeanne M.
Binary logit analysis was used to identify the factors influencing adoption of Global Positioning System (GPS) guidance systems by cotton farmers in 11 Mid-south and Southeastern states. Results indicate that adoption was more likely by those who had already adopted other precision-farming practices and had used computers for farm management. In addition, younger and more affluent farmers were more likely to adopt. Farmers with larger farms and with relatively high yields were also more likely to adopt. Education was not a significant factor in a farmer’s decision to adopt GPS guidance systems.
Tipo: Journal Article
Palavras-chave: Binary logit; Cotton; GPS guidance system; Marginal effect; Precision farming; Technology adoption; Agribusiness; Crop Production/Industries; Q2; Q16; Q19; Q20; Q24.
Ano: 2008
URL: http://purl.umn.edu/45530

The Variable-Rate Input Application Decision for Multiple Inputs with Interactions
Provedor de dados: 31
Autores: 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

Effects of Herbicide-Resistant Technology Fees on the Plant Population Decision for Cotton Production
Provedor de dados: 31
Autores: 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

Analysis of Factors Affecting Farmers’ Willingness to Adopt Switchgrass Production
Provedor de dados: 31
Autores: 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

Factors Influencing the Selection of Precision Farming Information Sources by Cotton Producers
Provedor de dados: 31
Autores: Jenkins,   Amanda; Velandia,   Margarita M.; Lambert,   Dayton M.; Roberts,   Roland K.; Larson,   James A.; English,   Burton C.; Martin,   Steven W.
Precision farming information demanded by cotton producers is provided by various suppliers, including consultants, farm input dealerships, University Extension systems, and media sources. Factors associated with the decisions to select among information sources to search for precision farming information are analyzed using a multivariate probit regression accounting for correlation among the different selection decisions. Factors influencing these decisions are age, education, and income. These findings should be valuable to precision farming information providers who may be able to better meet their target clientele needs.
Tipo: Journal Article
Palavras-chave: Extension; Information-source-use decisions; Media; Multivariate probit; Precision agriculture technologies; Private sources; Farm Management; Teaching/Communication/Extension/Profession.
Ano: 2011
URL: http://purl.umn.edu/117779

Stochastic Dominance Analysis of Bioenergy Crops as a Production Alternative on an East Tennessee Beef and Crop Farm
Provedor de dados: 31
Autores: Griffith,   Andrew P.; Larson,   James A.; English,   Burton C.; McLemore,   Dan L.
This study evaluated prices and incentives for switchgrass stated in a biorefinery’s contract terms that induce switchgrass production on an east Tennessee representative farm when compared with traditional enterprises.  The alternate contract terms imitated current subsidies/incentives offered as well as incentives and cost share terms not in the BCAP.
Tipo: Thesis or Dissertation
Palavras-chave: Switchgrass; Contract; Risk aversion; Net return; Farm Management; Production Economics; Resource /Energy Economics and Policy; Q12.
Ano: 2009
URL: http://purl.umn.edu/46811

Switchgrass Production in Marginal Environments: A Comparative Economic Analysis across Four West Tennessee Landscapes
Provedor de dados: 31
Autores: Mooney,   Daniel F.; Roberts,   Roland K.; English,   Burton C.; Tyler,   Donald D.; Larson,   James A.
Switchgrass (Panicum virgatum L.) has been identified as a model feedstock for the emerging biofuels industry. Its selection was based, in part, upon the observation that switchgrass can produce high yields in marginal production environments. This trait may become particularly valuable in coming years, as renewable fuel mandates begin to take effect and concerns over the food-versus-fuel debate increase. Relatively little research information exists about how management practices and production costs vary across different production environments. The objectives of this research were (a) to compare switchgrass yields as influenced by seeding rate and nitrogen fertilization rates in low-, intermediate-, and high-yielding switchgrass production environments,...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; International Relations/Trade.
Ano: 2008
URL: http://purl.umn.edu/6403

Adoption of Site-Specific Information and Variable-Rate Technologies in Cotton Precision Farming
Provedor de dados: 31
Autores: Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Cochran,   Rebecca L.; Goodman,   W. Robert; Larkin,   Sherry L.; Marra,   Michele C.; Martin,   Steven W.; Shurley,   W. Donald; Reeves,   Jeanne M.
Probit analysis identified factors that influence the adoption of precision farming technologies by Southeastern cotton farmers. Younger, more educated farmer who operated larger farms and were optimistic about the future of precision farming were most likely to adopt site-specific information technology. The probability of adopting variable-rate input application technology was higher for younger farmers who operated larger farms, owned more of the land they farmed, were more informed about the costs and benefits of precision farming, and were optimistic about the future of precision farming. Computer use was not important, possibly because custom hiring shifts the burden of computer use to agribusiness firms.
Tipo: Journal Article
Palavras-chave: Cotton; Grid soil sampling; Precision farming; Probit; Sample selection; Site-specific information; Technology adoption; Variable-rate application; D21; Q12; Q16.
Ano: 2004
URL: http://purl.umn.edu/42943

Risk and Return for Bioenergy Crops under Alternative Contracting Arrangements
Provedor de dados: 31
Autores: Larson,   James A.; English,   Burton C.; He,   Lixia.
This study evaluated the potential to supply biomass feedstocks under alternative contract arrangements for a northwest Tennessee 2,400 acre grain farm. The four potential types of contracts analyzed in this study offer different levels of biomass price, yield, and production cost risk sharing between the representative farm and the processor.
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/6842

RISK EFFECTS OF ALTERNATIVE WINTER COVER CROP, TILLAGE, AND NITROGEN FERTILIZATION SYSTEMS IN COTTON PRODUCTION
Provedor de dados: 31
Autores: Larson,   James A.; Jaenicke,   Edward C.; Roberts,   Roland K.; Tyler,   Donald D.
A Just-Pope model was developed to assess tillage, nitrogen, weather, and pest effects on risk for cotton grown after alternative winter cover crops.  Yield risk for cotton after hairy vetch was less than for cotton with no winter cover when no nitrogen fertilizer was used to supplement the vetch nitrogen.  However, because cotton after vetch has a higher production cost, farmers growing conventionally tilled cotton may be slow to adapt because risk-return tradeoffs may be unacceptable under risk neutrality and risk aversion.  For risk-averse farmers who have already adopted no tillage, cotton grown after hairy vetch is risk efficient.
Tipo: Journal Article
Palavras-chave: Cover crops; Just-Pope production function; Risk; Tillage; Crop Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/15458

COTTON CULTIVAR, PLANTING, IRRIGATING, AND HARVESTING DECISIONS UNDER RISK
Provedor de dados: 31
Autores: Larson,   James A.; Mapp,   Harry P., Jr.
Producers in southwest Oklahoma lack adequate information about optimal planting decisions for cotton. This study uses a cotton growth simulation model to evaluate alternative cultivar, planting date, irrigation, and harvest choices. Effects of using information about soil moisture at reproduction and revenue loss at harvest in making cultivar and planting data decisions are evaluated. Using soil temperature information to plant at an early date produced high net revenue some years, but reduced mean net revenue and increased risk. Producers maximizing expected net revenue should plant a short-season cultivar in late May and use soil moisture information to schedule irrigation at reproduction.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/31012

Precision Farming by Cotton Producers in Twelve Southern States: Results from the 2009 Southern Cotton Precision Farming Survey
Provedor de dados: 31
Autores: Mooney,   Daniel F.; Roberts,   Roland K.; English,   Burton C.; Lambert,   Dayton M.; Larson,   James A.; Velandia,   Margarita M.; Larkin,   Sherry L.; Marra,   Michele C.; Martin,   Steven W.; Mishra,   Ashok K.; Paxton,   Kenneth W.; Rejesus,   Roderick M.; Segarra,   Eduardo; Wang,   Chenggang; Reeves,   Jeanne M.
Precision Farming by Cotton Producers in Twelve Southern States: Results from the 2009 Southern Cotton Precision Farming Survey
Tipo: Report
Palavras-chave: Cotton; Precision farming; Survey; Agribusiness; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2010
URL: http://purl.umn.edu/91333

Factors Influencing Cotton Farmers’ Perceptions about the Importance of Information Sources in Precision Farming Decisions
Provedor de dados: 31
Autores: 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

Cost Analysis of Alternative Harvest and Storage Methods for Switchgrass in the Southeastern U.S.
Provedor de dados: 31
Autores: 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

ANALYSIS OF BREAKEVEN YIELD GAINS AND INPUT COST SAVINGS FOR A COTTON YIELD MONITORING SYSTEM
Provedor de dados: 31
Autores: Larson,   James A.; English,   Burton C.; Roberts,   Roland K.; Cochran,   Rebecca L.
Cotton yield monitors are a new technology and their costs have not been thoroughly evaluated.  This research evaluated yield gains and input savings required to cover the cost of a monitor.  Spreading monitor costs over multiple VRT decisions reduces the required yield gain or cost savings for any one decision.
Tipo: Conference Paper or Presentation
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2003
URL: http://purl.umn.edu/35081

Adoption of Conservation-Tillage Methods and Genetically Modified Cotton
Provedor de dados: 31
Autores: Roberts,   Roland K.; English,   Burton C.; Gao,   Qi; Larson,   James A.
Adoption of herbicide-tolerant cotton and conservation tillage may be simultaneously related.  Bayes' theorem and a two-equation logit model were used to test the simultaneity hypothesis.  Evidence for Tennessee suggests that adoption of these technologies reduced residual herbicide use and soil erosion more than if adoption of these technologies were independent.
Tipo: Conference Paper or Presentation
Palavras-chave: Bayes' theorem; Conservation tillage; Cotton; Genetically modified crops; Herbicide tolerant crops; Simultaneous logit model; Technology adoption; Crop Production/Industries; Q12; Q16; Q24; O33.
Ano: 2005
URL: http://purl.umn.edu/35293

Precision Farming by Cotton Producers in Eleven Southern States: Results from the 2005 Southern Precision Farming Survey
Provedor de dados: 31
Autores: Cochran,   Rebecca L.; Roberts,   Roland K.; English,   Burton C.; Larson,   James A.; Goodman,   W. Robert; Larkin,   Sherry L.; Marra,   Michele C.; Martin,   Steven W.; Paxton,   Kenneth W.; Shurley,   W. Donald; Reeves,   Jeanne M.
Precision Farming by Cotton Producers in Eleven Southern States: Results from the 2005 Southern Precision Farming Survey
Tipo: Report
Palavras-chave: Cotton; Precision farming; Survey; Agribusiness; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2006
URL: http://purl.umn.edu/91332

NITROGEN-FIXING WINTER COVER CROPS AND PRODUCTION RISK: A CASE STUDY FOR NO-TILLAGE CORN
Provedor de dados: 31
Autores: 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

Intensity of Precision Agriculture Technology Adoption by Cotton Producers
Provedor de dados: 31
Autores: Paxton,   Kenneth W.; Mishra,   Ashok K.; Chintawar,   Sachin; Roberts,   Roland K.; Larson,   James A.; 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 intensity of precision agriculture technologies adopted by cotton farmers. Particular attention is given to the role 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 higher number of precision agriculture technologies. Younger and better educated producers and the number of precision agriculture technologies used were significantly correlated. Finally, farmers using computers for management decisions...
Tipo: Journal Article
Palavras-chave: Precision technologies; Poisson; Negative binomial count data method; GPS; Education; Cotton; Crop Production/Industries; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011
URL: http://purl.umn.edu/105464

Herbicide-Resistant Technology Price Effects on the Plant Density Decision for Ultra-Narrow-Row Cotton
Provedor de dados: 31
Autores: Larson,   James A.; Roberts,   Roland K.; Gwathmey,   C. Owen.
Farmers are concerned about the high cost of planting herbicide-resistant cotton with the high plant densities recommended for ultra-narrow-row cotton. This study evaluated the effects on net revenues of four herbicide-resistant technology fee policies used since 1996 by Monsanto, the technology license holder. Results indicate that changes in the technology fee policy by Monsanto have raised the cost of planting herbicide-resistant cotton. As a consequence, farmers may have an incentive to switch from ultra-narrow-row cotton to wide-row cotton and to use a lower plant density when the technology fee is tied to the seeding rate.
Tipo: Journal Article
Palavras-chave: Profit; Seed cost; Technology fee; Transgenic cotton; Crop Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/8640

Factors Influencing Selection of Information Sources by Cotton Producers Considering Adoption of Precision Agriculture Technologies
Provedor de dados: 31
Autores: 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

Simultaneous Adoption of Herbicide-Resistance and Conservation-Tillage Cotton Technologies
Provedor de dados: 31
Autores: 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-resistance 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 two technologies for Tennessee cotton production. Evidence from Bayes' theorem and a two-equation logit model suggested a simultaneous relationship. Mean elasticities for acres in herbicide-resistance seed with respect to the probability of adopting conservation-tillage practices and acres in conservation-tillage practices with respect to the probability of adopting herbicide-resistance...
Tipo: Journal Article
Palavras-chave: Bayes' theorem; Conservation tillage; Cotton; Genetically modified crops; Herbicide-resistant crops; Simultaneous logit model; Technology adoption; Farm Management; Q12; Q16; Q24; 33.
Ano: 2006
URL: http://purl.umn.edu/43789

Reasons for Adopting Precision Farming: A Case Study of U.S. Cotton Farmers
Provedor de dados: 31
Autores: 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

Economics of the Variable Rate Technology Investment Decision for Agricultural Sprayers
Provedor de dados: 31
Autores: Mooney,   Daniel F.; Larson,   James A.; Roberts,   Roland K.; English,   Burton C.
Producers lack information about the profitability of variable rate technology (VRT) for agricultural sprayers. An economic framework was developed to evaluate the returns required to pay for VRT investments. Payback variables included input savings, yield gains, and reduced application costs. We illustrate the framework with two example investment scenarios.
Tipo: Conference Paper or Presentation
Palavras-chave: Capital budgeting; Decision aid; Farm management; Precision agriculture; Map-based; Sensor-based; Site-specific management; Variable rate technology; Farm Management; Q10; Q16.
Ano: 2009
URL: http://purl.umn.edu/46860

Adoption and Abandonment of Precision Soil Sampling in Cotton Production
Provedor de dados: 31
Autores: Walton,   Jonathan C.; Lambert,   Dayton M.; Roberts,   Roland K.; Larson,   James A.; English,   Burton C.; Larkin,   Sherry L.; Martin,   Steven W.; Marra,   Michele C.; Paxton,   Kenneth W.; Reeves,   Jeanne M.
Adoption of precision agriculture technology has arrived considerable attention, but abandonment has received little.  This paper identified factors motivating adoption and abandonment of precision soils sampling in cotton.  Younger producers who farmed more cotton area, owned more of their cropland, planted more non-cotton area, or used a computer were more likely to adopt precision soil sampling.  Those with more cotton area or who owned livestock were more likely to abandon, while those who used precision soil sampling longer, or used variable-rate fertilizer application were less likely to abandon precision soil sampling.
Tipo: Journal Article
Palavras-chave: Abandonment; Adoption; Cotton; Precision; Agriculture; Soil sampling; Southeastern United States; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/46556

A Farm-Level Evaluation of Conditions Under Which Farmers Will Supply Biomass Feedstocks for Energy Production
Provedor de dados: 31
Autores: Larson,   James A.; English,   Burton C.; Hellwinckel,   Chad M.; Torre Ugarte,   Daniel de la; Walsh,   Marie E.
This study evaluated the risk management potential of including biomass crops as a diversification strategy for a grain farm in northwest Tennessee.  Results indicate that adding biomass crops to the farm enterprise mix could improve mean net revenues and reduced net revenue variability.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/19161

Adoption of No-Tillage Practices, Other Conservation-Tillage Practices and Herbicide-Resistant Cotton Seed, and Their Synergistic Environmental Impacts
Provedor de dados: 31
Autores: 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

FACTORS INFLUENCING WEST TENNESSEE FARMERS' WILLINGNESS TO PAY FOR A BOLL WEEVIL ERADICATION PROGRAM
Provedor de dados: 31
Autores: 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

Factors Influencing Adoption of Remotely Sensed Imagery for Site-Specific Management in Cotton Production
Provedor de dados: 31
Autores: Larson,   James A.; Roberts,   Roland K.; English,   Burton C.; Larkin,   Sherry L.; Marra,   Michele C.; Martin,   Steven W.; Paxton,   Kenneth W.; Reeves,   Jeanne M.
This research evaluated the factors that influenced cotton producers to adopt remote sensing for variable rate application of inputs.  Farmers who were younger, more highly educated, had a larger farm operation, and were more technologically savvy were more likely to have adopted remote sensing.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2007
URL: http://purl.umn.edu/34971