caa a22 4500 445837624 CHVBK 20180317145334.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00271-010-0215-7 doi (NATIONALLICENCE)springer-10.1007/s00271-010-0215-7 Analysis, assessment, and improvement of fertilizer distribution in pressure irrigation systems [Elektronische Daten] [Miguel Jimenez-Bello, Fernando Martínez, Vicente Bou, Hugo Bartolín] The transformation of traditional irrigation systems into pressure irrigation networks allows water users associations to use central fertigation systems. For efficient fertigation management, however, it is essential to obtain uniform distribution of the injected fertilizer through the system and to understand the hydraulic processes that take place in the central fertigation system. This will allow users to implement strategies that improve fertilizer distribution. In this work we develop a new methodology to improve fertilizer distribution uniformity and apply it to a case study. The results show how fertilizer distribution can be improved by means of proper scheduling of irrigation deliveries. The best results are obtained when fertigating sectors operate without non-fertigating sectors and there are not intermediate irrigations without fertilizer, achieving an improvement of the fertilizer distribution of 10.5%. In addition, this work highlights the difficulties of obtaining uniform distribution of fertilizer in a centralized irrigation system when there are users that do not want to make use of it. Springer-Verlag, 2010 Fertigation nationallicence Irrigation networks nationallicence Sectoring nationallicence Genetic algorithms nationallicence EPANET nationallicence Jimenez-Bello Miguel Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut Martínez Fernando Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut Bou Vicente Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut Bartolín Hugo Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut Irrigation Science Springer-Verlag 29/1(2011-01-01), 45-53 0342-7188 29:1<45 2011 29 271 https://doi.org/10.1007/s00271-010-0215-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00271-010-0215-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jimenez-Bello Miguel Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 700 1- Martínez Fernando Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 700 1- Bou Vicente Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 700 1- Bartolín Hugo Instituto de Ingeniería del Agua y del Medio Ambiente, Universidad Politécnica de Valencia, Valencia, Spain aut NATIONALLICENCE 773 0- Irrigation Science Springer-Verlag 29/1(2011-01-01), 45-53 0342-7188 29:1<45 2011 29 271 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer