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Using soil water sensors to improve irrigation management

dc.contributor.authorChávez, José L., author
dc.contributor.authorEvett, Steven R., author
dc.date.accessioned2020-07-24T13:41:52Z
dc.date.available2020-07-24T13:41:52Z
dc.date.issued2012-02
dc.descriptionPresented at Proceedings of the 24th annual Central Plains irrigation conference held on February 21-22 in Colby, Kansas.
dc.description.abstractIrrigation water management has to do with the appropriate application of water to soils, in terms of amounts, rates, and timing to satisfy crop water demands while protecting the soil and water resources from degradation. In this regard, sensors can be used to monitor the soil water status; and some can be used to calculate irrigation amounts and to decide when to optimally irrigate. This article consists of two parts: 1) presentation of different soil water sensor technologies, and 2) accuracy assessment of selected sensors. The selected sensors included the Acclima (ACC) time domain transmissometer (Acclima, Inc., Meridian, ID), the CS616 and CS655 water content reflectometers (Campbell Scientific, Inc., Logan, UT), the Hydra Probe (Stevens Water Monitoring Systems, Inc., Portland, OR), and the 5TE (Decagon Devices, Inc., Pullman, WA). Sensed soil water content values, in a sandy clay loam soil and a silty clay loam soil, were compared with corresponding values derived from gravimetric samples and TDR readings. Factory based calibrations performed well for the ACC and CS655, but not for the other sensors. The ACC and CS655 sensors were promising for irrigation management, although proper installation is important. Evaluations indicated that a linear calibration for the ACC and the CS616 sensors could improve the water content readings.
dc.format.mediumborn digital
dc.format.mediumCD-ROMs
dc.format.mediumproceedings (reports)
dc.identifier.urihttps://hdl.handle.net/10217/210882
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofIrrigation Management
dc.relation.ispartofProceedings of the 2012 Central Plains irrigation conference, Colby, Kansas, February 21-22
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.sourceContained in: Proceedings of the 2012 Central Plains irrigation conference, Colby, Kansas, February 21-22, http://hdl.handle.net/10217/69349
dc.titleUsing soil water sensors to improve irrigation management
dc.title.alternativeProceedings of the 24th annual Central Plains irrigation conference
dc.typeText

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