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dc.contributor.authorAl Al-Baaj, Aymen A
dc.contributor.authorLewis, Andrew
dc.date.accessioned2019-09-10T00:39:00Z
dc.date.available2019-09-10T00:39:00Z
dc.date.issued2019
dc.identifier.issn2311-7524
dc.identifier.doi10.3390/horticulturae5010010
dc.identifier.urihttp://hdl.handle.net/10072/387140
dc.description.abstractDue to restrictions and limitations on agricultural water worldwide, one of the most effective ways to conserve water in this sector is to reduce the water losses and improve irrigation uniformity. Nowadays, the low-pressure sprinkler has been widely used to replace the high-pressure impact sprinklers in lateral move sprinkler irrigation systems due to its low operating cost and high efficiency. However, the hazard of surface runoff represents the biggest obstacle for low-pressure sprinkler systems. Most researchers have used the pulsing technique to apply variable-rate irrigation to match the crop water needs within a normal application rate that does not produce runoff. This research introduces a variable pulsed irrigation algorithm (VPIA) based on an ON–OFF pulsing technique to conserve irrigation water through (1) decreasing the runoff losses by considering the soil infiltration rate, surface storage capacity, and sprinkler wetting diameter; and (2) ensuring a high level of water distribution uniformity in the direction of machine movement. From a wide range of pulse numbers and widths tested applying a certain water depth to a sandy loam soil, the best solution that gives the lowest runoff and highest uniformity while delivering an acceptable water depth was selected. A MATLAB code was written to simulate the soil infiltration rate, the sprinkler application rate, and to apply the proposed algorithm. The simulation results showed a runoff reduction of at least 90.7% with a high level of distribution uniformity in the direction of movement while delivering the highest possible irrigation depth using the lowest number of pulses.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.relation.ispartofissue1
dc.relation.ispartofjournalHorticulturae
dc.relation.ispartofvolume5
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsHorticulture
dc.subject.keywordsAgriculture
dc.subject.keywordsvariable pulse
dc.titleVariable Pulsed Irrigation Algorithm (VPIA) to Reduce Runoff Losses under a Low-Pressure Lateral Move Irrigation Machine
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationAl Al-Baaj, AA; Lewis, A, Variable Pulsed Irrigation Algorithm (VPIA) to Reduce Runoff Losses under a Low-Pressure Lateral Move Irrigation Machine, Horticulturae, 2019, 5 (1)
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.date.updated2019-09-10T00:35:50Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2019 by the Authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
gro.hasfulltextFull Text
gro.griffith.authorLewis, Andrew J.
gro.griffith.authorAl Al-Baaj, Aymen Ahmed Salih


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