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| Registros recuperados: 28 | |
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| Segarra, Eduardo; Kramer, Randall A.; Taylor, Daniel B.. |
| This paper analyzes the effects of uncertain soil loss in farm planning models. A disaggregated approach was used because of an interest in examining the impact of probabilistic soil loss constraints on farm level decision-making. A stochastic programming model was used to consider different levels of probability of soil loss. Traditional methods of analysis are shown to consistently overestimate net returns. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1985 |
URL: http://purl.umn.edu/29971 |
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| Segarra, Eduardo; Taylor, Daniel B.. |
| A conceptual optimal control theory model which considers farm level decision making with respect to soil management is developed. A simplified version of the theoretical model is applied to the Piedmont area of Virginia. The model includes the productivity impacts of both soil erosion and technological progress. Both the theoretical model and its empirical application are improvements over previous efforts. Results suggest that farmers in the study area can achieve substantial reductions in soil erosion by adopting alternative farming practices. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1987 |
URL: http://purl.umn.edu/30204 |
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| Segarra, Eduardo; Ethridge, Don E.; Deussen, Curtis R.; Onken, Arthur B.. |
| A dynamic optimization model which introduces an intertemporal nitrate-nitrogen residual function is used to derive and evaluate nitrogen fertilizer optimal decision rules for irrigated cotton production in the Southern High Plains of Texas. Results indicate that optimal nitrogen applications critically depend on initial nitrate-nitrogen levels and nitrogen-to-cotton price ratios. Also, the results indicate that single-year optimization leads to suboptimal nitrogen applications, which helps explain long-term cotton yield declines in the Southern High Plains of Texas; but single-year optimization does not significantly impact the net present value of returns of irrigated cotton operations. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1989 |
URL: http://purl.umn.edu/32359 |
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| Hudson, Darren; Ethridge, Don E.; Segarra, Eduardo. |
| Theory and analysis of price information and its importance have typically assumed that the information is correct. Additionally, most analyses have centered on general price information assuming homogeneous products. This paper examines the implications of incorrect price information on the basis of quality, with evidence from prior research on cotton prices used as an illustration. Results of a conceptual analysis indicate that quality has direct implications on the production and marketing process. Incorrect information on prices of different quality leads to distortions in the market and market inefficiency. |
| Tipo: Report |
Palavras-chave: Agricultural and Food Policy; Demand and Price Analysis. |
| Ano: 1997 |
URL: http://purl.umn.edu/53174 |
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| Seo, Sangtaek; Segarra, Eduardo; Mitchell, Paul D.; Leatham, David J.. |
| Water scarcity has been a significant issue for several decades in the Texas High Plains, with agriculture identified as the main activity contributing to this scarcity. To address this issue, much effort has been devoted to developing and encouraging adoption of sophisticated irrigation systems with high levels of water application efficiency, such as the low energy precision application (LEPA) system, subsurface drip irrigation (SDI), and variable rate irrigation (VRI). In this study, the economic feasibility of these irrigation systems is evaluated in cotton farming in the Texas High Plains using a real options approach. Results find that only the LEPA system is profitable under current conditions. The VRI system is profitable with high cotton... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/21427 |
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| Watson, Susan; Hudson, Darren; Segarra, Eduardo. |
| Precision farming and whole-field farming are compared with respect to yields, net present value of returns above nitrogen and water costs (NPVR), and nitrogen application rates to determine the differences in management practices. Precision farming yields, NPVR, and nitrogen application levels are then compared under yield maximizing verses profit maximizing strategies. The results quantify the gains from technology and management goals of peanut producers and suggest the technology effect is greater than the management effect. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/34606 |
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| 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 |
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| Huang, Wen-Yuan; Hyberg, Bengt; Segarra, Eduardo. |
| This paper analyzes a variable price support program (VPS) as an alternative to the current farm income support program. The VPS program can control U.S. agricultural production while protecting income of small farmers. The VPS is designed to alter farm level production decisions by reducing commodity support prices for each additional unit of production produced. This will serve to discourage excess aggregate production. The VPS program can be a mechanism to stabilize income of efficient small farms during the transition from the current farm programs to a free market environment. An illustrative study is used to target government program benefits to various farm-size groups. |
| Tipo: Journal Article |
Palavras-chave: Agricultural Finance. |
| Ano: 1990 |
URL: http://purl.umn.edu/29902 |
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| Registros recuperados: 28 | |
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