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Lagerkvist, Carl Johan; Johansson, Helena; Birol, Ekin; Roy, Devesh; Narrod, Clare A.. |
Irrigation with raw or diluted wastewater is a widespread phenomenon, occurring on 20 million hectares across the developing world, especially in Asian countries, but also in peri-urban areas around almost every city of sub-Saharan Africa and in many Latin American cities. Growing urban populations and consequent increases in demand for food and water has spurred the use of sewage to water crops as this is, in many cases, the only form of irrigation for farmers who either lack clean water or for whom clean water is too expensive. Wastewater has high nutrient value and constitutes a reliable source (Scott et al., 2004). It is mostly used to produce cash crops (e.g. vegetables and cereals). For example, it has been estimated that in most parts of Sub-... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty. |
Ano: 2009 |
URL: http://purl.umn.edu/59115 |
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