Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements
10 pages, 4 figures,
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| Format: | artículo biblioteca |
| Language: | English |
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CSIRO Publishing
2008
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| Subjects: | Irrigation control, Remote handling, Microprocessor applications, Sap flow, Olive, |
| Online Access: | http://hdl.handle.net/10261/44444 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100011011 |
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dig-irnas-es-10261-444442018-09-11T08:40:28Z Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements Fernández Luque, José Enrique Romero Vicente, Rafael Montaño Asquerino, Juan Carlos Díaz-Espejo, Antonio Muriel Fernández, José L. Cuevas Sánchez, Mª Victoria Moreno Lucas, Félix Girón Moreno, Ignacio F. Martín Palomo, Mª José Junta de Andalucía European Commission Comisión Interministerial de Ciencia y Tecnología, CICYT (España) Irrigation control Remote handling Microprocessor applications Sap flow Olive 10 pages, 4 figures, We designed and tested an automatic irrigation control system for fruit tree orchards, designated CRP. At the end of each day, the device calculates the irrigation dose (ID) from sap flow readings in the trunk of trees irrigated to replenish the crop water needs, relative to similar measurements made in over-irrigated trees. It then acts on the pump and electrovalve to supply an ID sufficient to keep the soil close to its field capacity during the irrigation period. Remote control of the system is possible from any computer or Smartphone connected to the Internet. We tested the CRP in an olive orchard in southern Spain. The device was robust and able to filter and amplify the output voltages of the heat-pulse velocity probes and to calculate reliable sap flow data. It calculated and supplied daily irrigation amounts to the orchard according to the specified irrigation protocol. The remote control facility proved to be useful for getting real-time information both on the CRP behaviour and the applied IDs, and for changing parameters of the irrigation protocol. For our conditions, olive trees with big root systems growing in a soil with a remarkable water-holding capacity, the approach mentioned above for calculating ID had not enough resolution to replace the daily crop water consumption. The device, however, was able to react when the soil water content fell below the threshold for soil water deficit. The threshold value was identified with simultaneous measurements of stem water potential in the instrumented trees. Our results suggest a change in the irrigation protocol that will allow the CRP to apply a recovery irrigation whenever that threshold is reached, making the device suitable for applying a deficit irrigation strategy in the orchard. This work was funded by the IFAPA, Consejería de Innovación, Ciencia y Empresa de la Junta de Andalucía, research project ref. C03-056, and by the research project CICYT/FEDER AGL2004-0794-CO3-02/AGR. Peer reviewed 2012-01-18T14:26:19Z 2012-01-18T14:26:19Z 2008 artículo http://purl.org/coar/resource_type/c_6501 Australian Journal of Agricultural Research 59 (4045): 589-598 (2008) 0004-9409 http://hdl.handle.net/10261/44444 10.1071/AR07312 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100011011 en http://dx.doi.org/10.1071/AR07312 none CSIRO Publishing |
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dig-irnas-es |
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biblioteca |
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Europa del Sur |
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Biblioteca del IRNAS España |
| language |
English |
| topic |
Irrigation control Remote handling Microprocessor applications Sap flow Olive Irrigation control Remote handling Microprocessor applications Sap flow Olive |
| spellingShingle |
Irrigation control Remote handling Microprocessor applications Sap flow Olive Irrigation control Remote handling Microprocessor applications Sap flow Olive Fernández Luque, José Enrique Romero Vicente, Rafael Montaño Asquerino, Juan Carlos Díaz-Espejo, Antonio Muriel Fernández, José L. Cuevas Sánchez, Mª Victoria Moreno Lucas, Félix Girón Moreno, Ignacio F. Martín Palomo, Mª José Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| description |
10 pages, 4 figures, |
| author2 |
Junta de Andalucía |
| author_facet |
Junta de Andalucía Fernández Luque, José Enrique Romero Vicente, Rafael Montaño Asquerino, Juan Carlos Díaz-Espejo, Antonio Muriel Fernández, José L. Cuevas Sánchez, Mª Victoria Moreno Lucas, Félix Girón Moreno, Ignacio F. Martín Palomo, Mª José |
| format |
artículo |
| topic_facet |
Irrigation control Remote handling Microprocessor applications Sap flow Olive |
| author |
Fernández Luque, José Enrique Romero Vicente, Rafael Montaño Asquerino, Juan Carlos Díaz-Espejo, Antonio Muriel Fernández, José L. Cuevas Sánchez, Mª Victoria Moreno Lucas, Félix Girón Moreno, Ignacio F. Martín Palomo, Mª José |
| author_sort |
Fernández Luque, José Enrique |
| title |
Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| title_short |
Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| title_full |
Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| title_fullStr |
Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| title_full_unstemmed |
Design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| title_sort |
design and testing of an automatic irrigation controller for fruit tree orchards, based on sap flow measurements |
| publisher |
CSIRO Publishing |
| publishDate |
2008 |
| url |
http://hdl.handle.net/10261/44444 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100011011 |
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