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Registros recuperados: 20
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Adoption of Cover Crops and Its Effect on Nitrogen Use by Farmers AgEcon
Gabrielyan, Gnel; Chintawar, Sachin; Westra, John V..
With increasing environmental concerns, increasing population, changing tastes and preferences of consumers towards healthier foods, and with more food safety requirements, agronomic practices have changed gradually to provide not only food and fiber but also public goods and other beneficial services from agriculture. Cover cropping is one type of technology increasingly being adopted by producers of multifunctional agriculture. Cover crops provide a range of benefits, both private and public. In this paper we identify factors affecting farmers’ choice to adopt cover crops. We examine the impact on nitrogen use from adopting cover crops and the resultant decrease in input costs. Using a two-stage approach that incorporates endogeneity of adoption in...
Tipo: Conference Paper or Presentation Palavras-chave: Cover crops; Nitrogen usage; Technology adoption; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/56520
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AGRICULTURAL PHOSPHORUS NONPOINT SOURCE POLLUTION IN THE MINNESOTA RIVER AgEcon
Westra, John V..
Phosphorus loads from agronomically diverse practices were simulated using representative farms from a heterogenous watershed of the Minnesota River. Results from integrated bioeconomic analyses were used to test hypotheses about nontargeted and targeted nonpoint source phosphorus pollution abatement programs, with respect to net farm income and phosphorus loading.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/21490
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An “Integrated Firm” Strategy In Asian Vegetable Imports AgEcon
Hinson, Roger A.; Westra, John V.; Motsenbocker, Carl.
Tipo: Report Palavras-chave: International Relations/Trade.
Ano: 2008 URL: http://purl.umn.edu/55630
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Best Management Practices: How Economical is it in Southern Agricultural Systems? AgEcon
Matekole, Augustus N.; Westra, John V.; Appelboom, Timothy W..
Conventional drainage systems tend to aggravate runoff and nutrient leaching problems on farms especially during the off-season. This study uses a biophysical economic model to identify, evaluate and determine multifunctional benefits of implementing and establishing nitrogen rate fertilizer application and conservation tillage practices as best management practices (BMPs) in the lower Mississippi River Basin (MRB). Simulation results showed that agricultural producers generally preferred no tillage to conventional tillage in reducing nutrient runoffs from fields because of higher net revenue per acre. Finally, given nitrogen runoff restrictions, farmers reduced crop acreage and nitrogen fertilizer application rates to help minimize losses.
Tipo: Conference Paper or Presentation Palavras-chave: Biopysical economic model; Tillage practices; Nitrogen fertilizer application rates; MRB; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management.
Ano: 2009 URL: http://purl.umn.edu/46757
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Decision to Adopt and Exit Best Management Practices by Dairy Farmers AgEcon
Hall, Larry M.; Paudel, Krishna P.; Gauthier, Wayne M.; Westra, John V..
Dairy farmers in Louisiana were surveyed to find out the factors leading these farmers to terminate best management practices. Results indicated that only few farmers have exited the practices once they adopt those. However, the longevity of best management practices adoption can be increased by emphasizing on education and targeting to operators who have already been in dairy practices for a longer time period.
Tipo: Conference Paper or Presentation Palavras-chave: Best management practices; Dairy; Entry; Exit; Louisiana; Farm Management; Livestock Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/9890
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Determination of BMP Adoption Effectiveness in the Louisiana Dairy Production Region. AgEcon
Hall, Larry M.; Paudel, Krishna P.; Gauthier, Wayne M.; Westra, John V.; Niu, Huizhen.
AVGWLF and PRedICT softwares were used to estimate the Louisiana dairy industry's effect on water quality. Results indicated a 20 percent decrease in N and P but little decrease in sediment pollution even when best management practices were adopted in 75% of land.
Tipo: Conference Paper or Presentation Palavras-chave: Livestock Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/35481
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Do Conservation Practices and Programs Benefit the Intended Resource Concern? AgEcon
Vondracek, Bruce; Zimmerman, Julie K.H.; Westra, John V..
Many conservation programs under the 2002 Farm Act address resource concerns such as water quality and aquatic communities in streams. Analyzing two such programs, simulated changes in agricultural practices decreased field-edge sediment losses by 25S31% in two geophysically distinct Minnesota watersheds. However, while in-stream sediment concentrations and lethal fisheries events decreased significantly in one watershed, there was no discernable improvement for the fisheries in the other, despite potentially spending over $100,000 annually in conservation payments. These results highlight the importance of performance-based conservation payments targeted to genuine resource concerns in watersheds and the value of integrated bioeconomic modeling of...
Tipo: Journal Article Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/31370
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Economic Analysis of Tillage and Nutrient Best Management Practices in the Ouachita River Basin, Louisiana AgEcon
Matekole, Augustus N.; Westra, John V..
Replaced with revised version of paper 07/24/09.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/49519
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Effect of Cover Crop Adoption on Nitrogen Use among Conventional and Organic Corn Farms – An Empirical Analysis AgEcon
Chintawar, Sachin; Gabrielyan, Gnel; Westra, John V..
Multiple studies have estimated factors influencing cover crop adoption which include control weed population (Ngouajio et al. 2002), increased soil health (Santhi Wicks and Richard Howitt, 2005), and increased productivity (Johannes M. S. Scholberg, Santiago Dogliotti, Lincoln Zotarelli, Corey M. Cherr, Carolina Leoni and Walter A. H. Rossing, 2010, Jason Bergtold, Jason Fewella, and Patricia Duffy, 2010). An externality of adoption of cover crops that has not been explored is its potential impact on the amount of nitrogen use by farmers. Using a 2009 survey of conventional and organic corn farmers in 7 states of the US, we estimate the factors affecting adoption of cover crops and its impact on nitrogen use. While nitrogen used by farmers is considered...
Tipo: Conference Paper or Presentation Palavras-chave: Cover Crop Adoption; Nitrogen Management; Limited Dependent Endogenous Variable Model; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/98825
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EFFECTS ON FARM INCOME AND THE ENVIRONMENT FROM TARGETING AGRICULTURAL BEST MANAGEMENT PRACTICES (BMPS) AgEcon
Westra, John V..
To evaluate potential effects on net farm income and water quality from specific agricultural Best Management Practices (BMPs), estimates of phosphorus loading for current and alternative farming methods were combined with cost and return estimates to create a positive mathematical programming model of a major watershed. Targeting specific BMPs to susceptible regions was the most effective policy for improving water quality. This had smaller negative impacts on farm income than not targeting BMPs to reduce phosphorus effluent from agriculture.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/35191
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ENCOURAGING FARMERS TO PRODUCE ENVIRONMENTAL BENEFITS FROM AGRICULTURE AgEcon
Westra, John V.; Zimmerman, Julie K.H.; Vondracek, Bruce.
Farmers produce many things in abundance for which they receive income, including food, feed, fiber and fuel. Similarly, farmers generate environmental benefits such as improved water quality by reducing soil and nutrient loss and improved wildlife habitat by managing their operation in certain ways. Unfortunately, most farmers receive limited or no compensation for these positive externalities they produce. If we wish to encourage more of these positive externalities, policies need to be established and implemented that compensate producers for the benefits society receives from specific farming practices. This research examined how production practices that provide environmental benefits would affect water quality (nutrient and sediment loss),...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy; Farm Management.
Ano: 2002 URL: http://purl.umn.edu/19785
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ENVIRO-ECONOMIC ANALYSIS OF PHOSPHORUS NONPOINT POLLUTION AgEcon
Westra, John V.; Olson, Kent D..
The state of Minnesota seeks to reduce phosphorus loading to the Minnesota River by 40% from current levels. The state agency charged with achieving this reduction has indicated each watershed should reduce its current phosphorus loading by 40%. We hypothesized that policies targeting specific practices or regions would have a smaller negative impact on farm income than policies requiring every nonpoint polluter to reduce its contribution by 40%. Using a stylized version of one major watershed in the river basin as an example, we analyzed the cost-effectiveness of various nonpoint pollution reduction policies. We simulated current and alternative farming systems (designed to reduce phosphorus loading by changing tillage or fertilizer practices) in...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2001 URL: http://purl.umn.edu/20653
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Factors Influencing and Steps Leading to the Adoption of Best Management Practices by Louisiana Dairy Farmers AgEcon
Paudel, Krishna P.; Gauthier, Wayne M.; Westra, John V.; Hall, Larry M..
A logistic regression procedure was used to assess the impact of socioeconomic attributes on the best management practices (BMPs) adoption decision by Louisiana dairy farmers relative to cost-share and fixed incentive payments. Analysis of the steps in the BMP adoption decision process indicated visits between producers and the U.S. Department of Agriculture–Natural Resource Conservation Service significantly increase likelihood of BMP adoption. Producer willingness-to-pay results indicate that marginal increases in dairy BMP adoption and associated improvement in environmental quality require increased technical and financial assistance.
Tipo: Journal Article Palavras-chave: Best management practices; Bootstrap; Cost-share; Manure; Steps in BMP adoption; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Q16; Q25; Q53.
Ano: 2008 URL: http://purl.umn.edu/45519
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Factors Influencing the Adoption of Russian Varroa-Resistant Honey Bees AgEcon
Kim, Seon-Ae; Westra, John V.; Gillespie, Jeffrey M..
Factors influencing the adoption of Russian Varroa-Resistant honey bees were assessed. Logit results indicate factors associated with the adoption include sales, internet use, and contact with other beekeepers. Negatively associated factors are age and income. Future adoption depends upon previous use and perception.
Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness.
Ano: 2006 URL: http://purl.umn.edu/35311
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FARMERS' DECISION PROCESSES AND ADOPTION OF CONSERVATION TILLAGE AgEcon
Westra, John V.; Olson, Kent D..
In a transect survey of crop residue levels in 1995 and 1996, two Minnesota counties had very different percentages of cropland with desired residue cover even though the soil types were similar. To gain a better understanding of the reasons behind this difference, the farmers in these two counties were surveyed about their use or lack of use of conservation tillage practices. A statistical logit analysis of survey responses showed farmers are more apt to adopt conservation tillage if they are larger; are more concerned about erosion on their land; have made a recent major investment in the farm; use other producers for tillage information; have the management skill for conservation tillage; and believe conservation tillage will fit with their production...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries.
Ano: 1997 URL: http://purl.umn.edu/13380
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Implications of the Sanitary and Phytosanitary (SPS) regulations on the EU – U.S. Corn Trade Sector and the Case of the ‘Agenda 2000’ Reforms AgEcon
Chintawar, Sachin; Westra, John V..
Corn trade between the European Union (EU) and the United States has undergone substantial changes over the past decade. EU Reforms of the Common Agricultural Policy (CAP), beginning with the Mac Sharry Reforms of 1992 and continuing with the Agenda 2000 Reforms, were directed at bringing EU agricultural policy into compliance with World Trade Organization (WTO) provisions. These reforms have brought about considerable changes in the market structure in corn trade. However, while trade has been facilitated by decoupling payments and removing levies and tariffs on imported corn, EU’s Sanitary and Phytosanitary (SPS) measures have negated some of the progress in trade between EU countries and the United States. Technical Barriers to Trade (TBT), in the form...
Tipo: Conference Paper or Presentation Palavras-chave: Sanitary and Phytosanitary measures; Technical Barriers to Trade; Common Agricultural Policy; Agenda 2000 Reforms; Genetically Modified corn; Welfare effects; Agricultural and Food Policy; International Relations/Trade.
Ano: 2010 URL: http://purl.umn.edu/56455
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Influence of Cost Share and EQIP Incentive Payments on Adoptions of Best Management Practices by Louisiana Dairy Farmers AgEcon
Gauthier, Wayne M.; Paudel, Krishna P.; Westra, John V.; Hall, Larry M..
Adoption of best management practices (BMPs) minimizes the negative externalities created by the manure by-product of milk production. Logistic regression procedure was used to understand the impact of socioeconomic attributes of Louisiana dairy farmers on BMP adoption decision relative to the cost share and incentive payment.
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management.
Ano: 2005 URL: http://purl.umn.edu/35633
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Simulating the U.S. Impacts of Alternative Asian Soybean Rust Treatment Regimes AgEcon
Johansson, Robert C.; Livingston, Michael J.; Westra, John V.; Guidry, Kurt M..
Asian soybean rust (rust) is an emerging issue in U.S. crop production and was identified in nine states during 2004. Recent farm surveys indicate that many producers are adjusting their management practices to the possibility of a rust infestation. The economic and environmental impacts of such adjustments are not known in the medium run given these new developments. We combine 2005 data on the geographical distribution of the fungal pathogen that causes rust with 2005 information on the availability and material costs of fungicides to analyze three treatment strategies. Our results indicate a higher range of economic impacts than previous research has indicated, but are consistent with earlier findings indicating that rust infestations will likely...
Tipo: Journal Article Palavras-chave: Asian soybean rust; Invasive species; Phakopsora pachyrhizi; Preventative and curative fungicides; Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/10186
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The Adoption of Russian Varroa-Resistant Honey Bees AgEcon
Kim, Seon-Ae; Westra, John V.; Gillespie, Jeffrey M..
Factors influencing the adoption of Russian Varroa-Resistant honey bees were assessed using a double hurdle model. Results indicate factors associated with the adoption include sales over $1,000 of bee related products, residence in the delta states, internet use, and membership in the AHPA. Negatively associated factors are high percentage of income coming from beekeeping, and membership in the ABF. Intensity of adoption increased with frequent contact with the USDA, and decreased with greater colony size, sales and membership in the ABF.
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management.
Ano: 2006 URL: http://purl.umn.edu/21054
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Willingness to Participate in Dairy Programs to Reduce Manure Related Problems in Louisiana's Major Dairy Production Region AgEcon
Paudel, Krishna P.; Gauthier, Wayne M.; Hall, Larry M.; Westra, John V..
Logistic and tobit models were used to understand the factors affecting dairy program participation and stated bid values by respondents. Results indicated that past participation is the key variable in regression. Bootstrap result confirms that most of the estimated parameters fall within the range of bootstrap confidence interval.
Tipo: Conference Paper or Presentation Palavras-chave: Livestock Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/35259
Registros recuperados: 20
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