Embedded stem water potential sensor

M. Meron, S. Y. Goldberg, A. Solomon-Halgoa, G. Ramon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Stem water potential (SWP) is accepted as an accurate indicator of water status in trees for irrigation scheduling. However, considering the pressure chamber's low capacity and labor-intensive nature, more effective methods are currently being sought. Measurement of SWP at the vapor phase by psychrometry has been reported since the 1980s, with limited acceptance in practice. A newer approach to SWP measurement at the fluid phase with a membrane osmometer has lately been developed and tested. Laboratory calibrated osmometric sensors were embedded in peach and tangerine trees and their pressure chamber showed comparable SWP values and diurnal patterns, albeit with a few hours delay. The results have opened the way to a new type of sensor development and have strengthened the validity of the fluid-to-fluid contact SWP measurement principle.

Original languageEnglish
Title of host publicationPrecision Agriculture 2015 - Papers Presented at the 10th European Conference on Precision Agriculture, ECPA 2015
EditorsJohn V. Stafford
PublisherWageningen Academic Publishers
Pages527-532
Number of pages6
ISBN (Electronic)9789086862672
DOIs
StatePublished - 2015
Event10th European Conference on Precision Agriculture, ECPA 2015 - Tel-Aviv, Israel
Duration: 12 Jul 201516 Jul 2015

Publication series

NamePrecision Agriculture 2015 - Papers Presented at the 10th European Conference on Precision Agriculture, ECPA 2015

Conference

Conference10th European Conference on Precision Agriculture, ECPA 2015
Country/TerritoryIsrael
CityTel-Aviv
Period12/07/1516/07/15

Keywords

  • Irrigation control
  • Osmometer
  • Psychrometry

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Computer Science Applications

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