A device for scheduling irrigation in fruit tree orchards from sap flow readings

A device for scheduling irrigation in fruit tree orchards from sap flow readings

8 páginas, 3 figuras, 1 tabla, 18 referencias.-- Proceedings of V International Symposium on Irrigation of Horticulturae Crops.-- Tuvo lugar en Mildura, Australia en Septiembre de 2006.-- cmartin@irnase.csic.es

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Main Authors: Fernández Luque, José Enrique, Díaz-Espejo, Antonio, Cuevas Sánchez, Mª Victoria, Montaño Asquerino, Juan Carlos, Romero Vicente, Rafael, Muriel Fernández, José L.
Format: artículo biblioteca
Language:English
Published: International Society for Horticultural Science 2008-06
Subjects:Olea europaea, Control, Transpiration, Soil evaporation, Irrigation dose,
Online Access:http://hdl.handle.net/10261/44417
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spelling dig-irnas-es-10261-444172018-09-11T08:40:28Z A device for scheduling irrigation in fruit tree orchards from sap flow readings Fernández Luque, José Enrique Díaz-Espejo, Antonio Cuevas Sánchez, Mª Victoria Montaño Asquerino, Juan Carlos Romero Vicente, Rafael Muriel Fernández, José L. Olea europaea Control Transpiration Soil evaporation Irrigation dose 8 páginas, 3 figuras, 1 tabla, 18 referencias.-- Proceedings of V International Symposium on Irrigation of Horticulturae Crops.-- Tuvo lugar en Mildura, Australia en Septiembre de 2006.-- cmartin@irnase.csic.es The aim of this work was to design and test a controller (CRP) able to calculate the irrigation dose automatically, suitable for high frequency irrigation in fruit tree orchards. The device consisted of three (replicates) measuring units (MU), a control unit (CU) and a pump and electrovalve controller (PEC). The MUs collected information on the transpiration (Ep) dynamics within the orchard, with the compensation heat-pulse method. Each MU made sap flow readings in one normally-irrigated (NI) tree and in one over-irrigated (OI) tree used for reference. The time course of the EpNI/EpOI ratio was used by the CU for calculating the irrigation dose (ID) daily. The system was programmed to apply a deficit irrigation in which the trees were bound to use part of the readily available water in the soil. Laboratory tests showed a high performance of the CRP for amplifying and filtering output signals from the sap flow probes. The field test showed the CRP was able to collect and handle sap flow data, to calculate ID according to the design algorithm, and to control the pump and electrovalve for supplying the desired ID to the experimental plot. Whether the use of the CRP means an improvement on irrigation scheduling, as compared to standard methods, was not evaluated in this work. This work has been funded by the IFAPA, Consejería de Innovación, Ciencia y Empresa de la Junta de Andalucía, research project ref. C03-056. Peer reviewed 2012-01-18T10:57:26Z 2012-01-18T10:57:26Z 2008-06 artículo http://purl.org/coar/resource_type/c_6501 Acta Horticulturae 792: 283-290 (2008) 978-90-66054-87-5 0567-7572 http://hdl.handle.net/10261/44417 en open International Society for Horticultural Science
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Olea europaea
Control
Transpiration
Soil evaporation
Irrigation dose
Olea europaea
Control
Transpiration
Soil evaporation
Irrigation dose
spellingShingle Olea europaea
Control
Transpiration
Soil evaporation
Irrigation dose
Olea europaea
Control
Transpiration
Soil evaporation
Irrigation dose
Fernández Luque, José Enrique
Díaz-Espejo, Antonio
Cuevas Sánchez, Mª Victoria
Montaño Asquerino, Juan Carlos
Romero Vicente, Rafael
Muriel Fernández, José L.
A device for scheduling irrigation in fruit tree orchards from sap flow readings
description 8 páginas, 3 figuras, 1 tabla, 18 referencias.-- Proceedings of V International Symposium on Irrigation of Horticulturae Crops.-- Tuvo lugar en Mildura, Australia en Septiembre de 2006.-- cmartin@irnase.csic.es
format artículo
topic_facet Olea europaea
Control
Transpiration
Soil evaporation
Irrigation dose
author Fernández Luque, José Enrique
Díaz-Espejo, Antonio
Cuevas Sánchez, Mª Victoria
Montaño Asquerino, Juan Carlos
Romero Vicente, Rafael
Muriel Fernández, José L.
author_facet Fernández Luque, José Enrique
Díaz-Espejo, Antonio
Cuevas Sánchez, Mª Victoria
Montaño Asquerino, Juan Carlos
Romero Vicente, Rafael
Muriel Fernández, José L.
author_sort Fernández Luque, José Enrique
title A device for scheduling irrigation in fruit tree orchards from sap flow readings
title_short A device for scheduling irrigation in fruit tree orchards from sap flow readings
title_full A device for scheduling irrigation in fruit tree orchards from sap flow readings
title_fullStr A device for scheduling irrigation in fruit tree orchards from sap flow readings
title_full_unstemmed A device for scheduling irrigation in fruit tree orchards from sap flow readings
title_sort device for scheduling irrigation in fruit tree orchards from sap flow readings
publisher International Society for Horticultural Science
publishDate 2008-06
url http://hdl.handle.net/10261/44417
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