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| Curtis, Kynda R.; Bishop, Carol; Harris, Thomas R.. |
| As water resources in arid regions decline, agricultural producers are encouraged to adopt water conserving strategies. The implementation of alternative low-water use crops is one option, but is it economically feasible? Data on current and alternative crops for this study include enterprise budgets, producer interviews, and field trials in Northwestern Nevada, USA. We use WinEPIC, a Windows-based version of the EPIC model, which synthesizes both agronomics and economics, to model yields and returns of alternative crop production under differing irrigation levels. Risk analysis or the distribution of net returns to alternative crop production is also examined. This study determined that there are alternative crops that could be feasibly substituted for... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Alternative crops; Arid regions; Economic feasibility; Irrigation; WinEPIC. |
| Ano: 2009 |
URL: http://purl.umn.edu/48053 |
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| Santos,Julio Cesar Neves dos; Palácio,Helba Araújo de Queiroz; Andrade,Eunice Maia de; Meireles,Ana Célia Maia; Araújo Neto,José Ribeiro de. |
| Although water erosion is the principle agent responsible for soil degradation, field data on the impacts of erosion, due to high operational costs and measurement difficulties, are scarce, especially in semiarid regions. In this context, the aim of this study was to evaluate runoff and soil and nutrient losses in uncultivated areas in the semiarid region of the state of Ceará in Brazil. The experiment was conducted in a 20 m² erosion plot that was uncultivated and populated with herbaceous plants. Data were collected during the rainy season from January to May 2009. Monthly water losses from overland flow ranged from 3.4 to 168.9 mm, representing 1.8 to 42.3% of the total monthly rainfall for January and April, respectively. Soil loss from erosion totaled... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil-erosion; Sediments (Geology); Arid regions. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000300030 |
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