Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Effect of mineral and organic fertilization on grey water footprint in a fertirrigated crop under semiarid conditions
Year:2016
Research Areas
  • Physics chemical and mathematical
Information
Abstract
The concept of "water footprint" (WF) was introduced as an indicator for the total volume of direct and indirect freshwater used, consumed and/or polluted [1]. The WF distinguishes between blue water (volume of surface and groundwater consumed), green water (rain-water consumed), and grey water (volume of freshwater that is required to assimilate the load of pollutants based on existing ambient water quality standards). In semiarid scenarios with low water quality, where the irrigation is necessary to maintain production, green WF is zero because the effective rainfall is negligible. As well as blue WF includes: i) extra consumption or irrigation water that the farmer has to apply to compensate the fail of uniformity on discharge of drips, ii) percolation out of control or salts leaching, which depends on the salt tolerance of the crop, soil and quality of irrigation water, to ensure the fruit yield. The major concern is grey WF, because the irrigation and nitrogen dose have to be adjusted to the crop needs in order to minimize nitrate pollution. This study is focused in assessment mineral and organic fertilization on grey WF in a fertirrigated melon crop under semiarid conditions, which is principally cultivated in the centre of Spain declared vulnerable zone to nitrate pollution by applying the Directive 91/676/CEE. During successive years, a melon crop (Cucumis melo L.) was grown under field conditions. Different doses of ammonium nitrate were used as well as compost derived from the wine-distillery industry which is relevant in this area.
International
Si
Congress
European Geosciences Union General Assembly 2016 (EGU2016) [http://www.egu2016.eu/]
970
Place
Vienna (Austria)
Reviewers
Si
ISBN/ISSN
1607-7962
Start Date
17/04/2016
End Date
22/04/2016
From page
9195
To page
9195
Geophysical Research Abstracts, Vol. 18, EGU General Assembly 2016 [http://meetingorganizer.copernicus.org/EGU2016/EGU2016-9195-1.pdf]
Participants
  • Autor: Maria Teresa Castellanos Serrano (UPM)
  • Autor: Maria Isabel Requejo Mariscal (UPM)
  • Autor: Maria Carmen Cartagena Causape (UPM)
  • Autor: Augusto Arce Martinez (UPM)
  • Autor: Francisco Ribas Elcorobarrutia (Servicio de Investigación y Tecnología Agraria)
  • Autor: María Jesús Cabello Cabello (Servicio de Investigación y Tecnología Agraria)
  • Autor: Ana Maria Tarquis Alfonso (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Sistemas Complejos
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM). Centro Mixto UPM-AGROMUTUA-ENESA
  • Grupo de Investigación: Contaminación de agroecosistemas por las prácticas agrícolas
  • Departamento: Matemática Aplicada
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