Nitrogen Fertirrigation: an Integrated Agronomic and Environmental Study

Tarquis Alfonso, Ana Maria; Castellanos Serrano, Maria Teresa; Ribas Elcorobarrutia, Francisco; Cabello Cabello, María Jesús; Arce Martinez, Augusto y Cartagena Causape, Maria Carmen (2012). Nitrogen Fertirrigation: an Integrated Agronomic and Environmental Study. "Agricultural Water Management", v. 120 ; pp. 46-55. ISSN 0378-3774. https://doi.org/10.1016/j.agwat.2012.06.016.

Descripción

Título: Nitrogen Fertirrigation: an Integrated Agronomic and Environmental Study
Autor/es:
  • Tarquis Alfonso, Ana Maria
  • Castellanos Serrano, Maria Teresa
  • Ribas Elcorobarrutia, Francisco
  • Cabello Cabello, María Jesús
  • Arce Martinez, Augusto
  • Cartagena Causape, Maria Carmen
Tipo de Documento: Artículo
Título de Revista/Publicación: Agricultural Water Management
Fecha: 31 Marzo 2012
Volumen: 120
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Matemática Aplicada a la Ingeniería Agronómica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Proper management of the N applied to crops is necessary in order to increase yield, improve water use efficiency (WUE) and reduce the pollutions risks with the least economic, environmental and health costs. A field study with melon crops was conducted during 2005, 2006 and 2007 in central Spain, using 11 different amounts of N. Some environmental indexes have been proposed, to provide an essential tool for determining the groundwater pollution risks associated with common agricultural practices. These indexes are related to variation in the nitrate concentration of drinking water (Impact Index (II)) and groundwater (Environmental Impact Index (EII)). Also, the Management Efficiency (ME) was calculated, which is related to the amount of fruit produced per gram of N leached (Nl). To determine the optimum dose of N, it was also necessary to know the N mineralisation (NM). Our results show that 160 kg ha?1 of available N (Nav) produced the maximum fruit yield (FY), enhanced WUE and gave an NM of 85 kg ha?1, while the impact indexes did not exceed the fixed maximum allowable limits and ME was adequate. The proposed indexes proved to be an effective tool for determining the risk of nitrate contamination and confirmed that the optimum dose of N corresponded to the maximum FY with minimal loss of Nl.

Más información

ID de Registro: 15452
Identificador DC: http://oa.upm.es/15452/
Identificador OAI: oai:oa.upm.es:15452
Identificador DOI: 10.1016/j.agwat.2012.06.016
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0378377412001643
Depositado por: Memoria Investigacion
Depositado el: 04 Jun 2013 12:35
Ultima Modificación: 21 Abr 2016 15:30
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