Download Consulta: creatorFacets:"Sandretto, Carmen L." Registros

Consulta: creatorFacets:"Sandretto,
Registros recuperados: 11
Data/hora: 09/06/2017 05:32:40
Carmen L."
A COMPARISON OF NUTRIENT APPLICATION TRENDS ON LIVESTOCK FARMS IN CORN
AND COTTON GROWING REGIONS
Provedor de dados: 31
Autores: Nehring,
Richard F.; Christensen,
Lee A.; O'Donoghue,
Erik J.; Sandretto,
Carmen L.
Recent trends in livestock concentration suggest that there may be an increasing risk of water pollution from manure applications.
These trends in livestock operations may be offsetting improvements in commercial fertilizer management that have the potential
to reduce the risk of water pollution. This conclusion was derived by tracking excess nutrient trends between 1996 and 2002 and
by examining measures of economic performance for livestock farms. First, a link was established between the expansion of
AFOs (Animal Feeding Operations) and excess nutrients from commercial fertilizer and manure sources. Second, technical
efficiency was measured in order to identify whether technical efficiency explains structural change and in order to see whether...
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/34764
Assessing Economic and Environmental Impacts of Ethanol Production on Fertilizer Use in Corn
Production
Provedor de dados: 31
Autores: Nehring,
Richard F.; Vialou,
Alexandre; Erickson,
Kenneth W.; Sandretto,
Carmen L.
The share of corn used in ethanol production has been growing rapidly. USDA predicts that more than 30 percent of the corn crop
will be used for ethanol production in 2009/2010. Expanded corn acreage contributes to the application of more fertilizer and is
likely to introduce a larger volume of nutrients into the environment. This study found that an increase in ethanol production is
consistent with a significant increase in quality-adjusted fertilizer use in selected corn states.
Tipo: Conference Paper or Presentation
Palavras-chave: Quality-adjusted fertilizer; Corn production; Ethanol; Excess nutrients; Crop Production/Industries;
Environmental Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/6736
Dairy Resource Management: A Comparison of Conventional and Pasture-Based Systems
Provedor de dados: 31
Autores: Nehring,
Richard F.; Gillespie,
Jeffrey M.; O'Donoghue,
Erik J.; Sandretto,
Carmen L.
Facing rapid and significant change in the sector, U.S. dairy production trends from 1993-2005 were tracked and performance
measures (scale and technical efficiency and returns on assets) were estimated for conventional and pasture-based dairy farms
using data from USDA's Agricultural Resource Management Survey. Comparisons of relative economic performance of dairy
farms by size and type are made.
Tipo: Conference Paper or Presentation
Palavras-chave: Dairy operations; Pasture-based systems; Technical efficiency; Livestock Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/34814
ECONOMIC AND ENVIRONMENTAL BENEFITS OF SOIL/WATER NITROGEN TESTING:
THE CASE OF CENTRAL NEBRASKA
Provedor de dados: 31
Autores: Kim,
C.S.; Taylor,
Harold; Sandretto,
Carmen L.
This research presents a competitive dynamic model to evaluate the economic and groundwater quality benefits resulting from the
adoption of soil/water nitrogen testing. The model is applied to an irrigated corn production county in the Nebraska Mid-State area
where the groundwater contamination level from nitrates is reported to be, on average, 18.7 parts per million (ppm). Adoption of
nutrient management practices would result in increased economic benefits to farmers and reduced nitrate stocks in groundwater.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 1999
URL: http://purl.umn.edu/35719
Economics and Productivity of Organic versus Non-organic Dairy Farms in the United States
Provedor de dados: 31
Autores: Gillespie,
Jeffrey M.; Nehring,
Richard F.; Hallahan,
Charles B.; Morrison Paul,
Catherine J.; Sandretto,
Carmen L.
Technical and scale efficiencies are estimated for organic and non-organic dairy farms in the United States using an input distance
function approach. A multinomial logit analysis is used to categorize the farms by technology. Large conventional farms
outperformed smaller farms in most technology / organic / non-organic categories. There was high variability in net returns among
the organics so that they did not differ significantly from the large conventional farms. The largest conventional non-organic
operations and conventional organic operations tended to have the higher technical efficiencies.
Tipo: Conference Paper or Presentation
Palavras-chave: Organic dairy production; Input distance function; Technical efficiency; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/44415
Forage Outsourcing in the Dairy Sector: The Extent of Use and Impact on Farm Profitability
Provedor de dados: 31
Autores: Gillespie,
Jeffrey M.; Nehring,
Richard F.; Sandretto,
Carmen L.; Hallahan,
Charles B.
The extent of forage purchasing behavior in milk production and its impact on profitability are analyzed using data from the 2000
and 2005 dairy versions of the Agricultural Resource Management Survey. Forage outsourcing is more common with hay than
with silage and haylage, and is more prevalent in the western United States. Though silage and haylage outsourcing is found to
impact profitability, the major profitability drivers appear to be farm size and efficiency. Evidence of significant forage
contracting is found in the western United States.
Tipo: Journal Article
Palavras-chave: Forage; Input purchasing; Outsourcing; Contracting; Milk production; Farm Management; Industrial
Organization; Livestock Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/95591
Manure and Commercial Fertilizer Nutrients Relative to Cropland and Pasture Requirements: Is the
Pollution Risk Growing on Corn/Livestock Farms?
Provedor de dados: 31
Autores: Nehring,
Richard F.; Christensen,
Lee A.; O'Donoghue,
Erik J.; Sandretto,
Carmen L.
Recent trends in livestock concentration in major corn producing states suggest that increasing risk of water pollution from
manure applications may be offsetting declines in risk of water pollution from chemical fertilizer. Analysis of data from ARMS
surveys found that potential excess nitrogen and phosphorous per corn acre increases sharply between 1996 and 2001 when
manure nutrient credits are included. Cohort analysis of farms found that the level of technical efficiency appears to be positively
associated with potential nutrient pollution from both sources. Operations with high ratios of manure applied to manure produced
and excess phosphorous tend to be more technically efficient than operations with low ratios of manure applied to manure
produced...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; Environmental Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/21980
Pasture-Based Dairy Systems: Who Are the Producers and Are Their Operations More Profitable
than Conventional Dairies?
Provedor de dados: 31
Autores: Gillespie,
Jeffrey M.; Nehring,
Richard F.; Hallahan,
Charles B.; Sandretto,
Carmen L.
U.S. dairy operations are sorted via a multinomial logit model into three production systems: pasture-based, semi-pasture-based,
and conventional. Region, farm size, financial situation, and production intensity measures impact system choice. Analysis
follows to determine the impact of production system on enterprise profitability. Region, farm size, and demographic variables
impact profitability, as does system choice: semi-pasture-based operations were less profitable than conventional operations on an
enterprise, per hundredweight of milk produced basis. Significant differences were not found in the profitability of pasture-based
operations versus those using other systems.
Tipo: Journal Article
Palavras-chave: Dairy farm size; Grazing; Pasture-based dairying; Livestock Production/Industries.
Ano: 2009
URL: http://purl.umn.edu/57630
Profits, Costs, and the Changing Structure of Dairy Farming
Provedor de dados: 31
Autores: MacDonald,
L.; Mosheim,
James M.; O'Donoghue,
Erik J.; McBride,
William D.; Nehring,
Richard F.; Sandretto,
Carmen
Roberto.
U.S. dairy production is consolidating into fewer but larger farms. This report uses data from several USDA surveys to detail that
consolidation and to analyze the financial drivers of consolidation. Specifically, larger farms realize lower production costs.
Although small dairy farms realize higher revenue per hundredweight of milk sold, the cost advantages of larger size allow large
farms to be profitable, on average, even while most small farms are unable to earn enough to replace their capital. Further survey
evidence, as well as the financial data, suggest that consolidation is likely to continue.
Tipo: Report
Palavras-chave: Dairy farming; Economies of scale; Economies of size; Dairy farm structure; Milk costs; Farm Management;
Industrial Organization; Livestock Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/6704
Small U.S. Dairy Farms: Can They Compete?
Provedor de dados: 31
Autores: Gillespie,
Jeffrey M.; Nehring,
Richard F.; Sandretto,
Carmen L.; Hallahan,
Charles B.
The U.S. dairy industry is undergoing rapid structural change, evolving from a structure including many small farmers in the
Upper Midwest and Northeast to one that includes very large farms in new production regions. Small farms are struggling to
retain competitiveness via improved management and low-input systems. Using data from USDA’s Agricultural Resource
Management Survey, we determine the extent of U.S. conventional and pasture-based milk production during 2003-2007, and
estimate net returns, scale efficiency, and technical efficiency associated with the systems across different operation sizes. We
compare the financial performance of small conventional and pasture-based producers with one another and with largescale
producers. A stochastic...
Tipo: Conference Paper or Presentation
Palavras-chave: Pasture-based system; Technical efficiency; Returns to scale; Dairy; Livestock Production/Industries;
Productivity Analysis.
Ano: 2009
URL: http://purl.umn.edu/52869
The Impact of Participation in Cooperatives on the Success of Small Farms
Provedor de dados: 31
Autores: Mishra,
Ashok K.; Tegegne,
Fisseha; Sandretto,
Carmen L.
This study identifies and analyzes factors that contribute to the success of small farms. Particular attention is given to the effect of
participation in marketing and supply cooperatives on the success of small farms. Using modified net farm income per dollar of
assets and operator’s labor and management income as measures of success, results show participation in marketing and supply
cooperatives is positively correlated with success. Further, analysis findings indicate farm size, controlling for variable and fixed
costs, type of ownership, management strategies used, working off the farm, and age of the operator are important factors that
influence profitability (modified net farm income per dollar of assets and operator’s labor and management income)...
Tipo: Journal Article
Palavras-chave: Cooperatives; Management strategies; Marketing; Small farms; Success; Supply cooperative; Agribusiness;
Marketing.
Ano: 2004
URL: http://purl.umn.edu/59604