Next Article in Journal
Synergistic Use of Gold Nanoparticles (AuNPs) and “Capillary Enzyme-Linked Immunosorbent Assay (ELISA)” for High Sensitivity and Fast Assays
Next Article in Special Issue
A Compound Sensor for Simultaneous Measurement of Packing Density and Moisture Content of Silage
Previous Article in Journal
Amplified Detection of the Aptamer–Vanillin Complex with the Use of Bsm DNA Polymerase
Previous Article in Special Issue
A Low-Cost Approach to Automatically Obtain Accurate 3D Models of Woody Crops
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(1), 53; doi:10.3390/s18010053

Multisensor Capacitance Probes for Simultaneously Monitoring Rice Field Soil-Water-Crop-Ambient Conditions

1
Centre for Regional and Rural Futures Deakin University, Hanwood 3217, New South Wales, Australia
2
Goanna Telemetry Systems, Goondiwindi 4390, Queensland, Australia
*
Author to whom correspondence should be addressed.
Received: 23 October 2017 / Revised: 22 December 2017 / Accepted: 22 December 2017 / Published: 26 December 2017
(This article belongs to the Special Issue Sensors in Agriculture)
View Full-Text   |   Download PDF [3247 KB, uploaded 27 December 2017]   |  

Abstract

Multisensor capacitance probes (MCPs) have traditionally been used for soil moisture monitoring and irrigation scheduling. This paper presents a new application of these probes, namely the simultaneous monitoring of ponded water level, soil moisture, and temperature profile, conditions which are particularly important for rice crops in temperate growing regions and for rice grown with prolonged periods of drying. WiFi-based loggers are used to concurrently collect the data from the MCPs and ultrasonic distance sensors (giving an independent reading of water depth). Models are fit to MCP water depth vs volumetric water content (VWC) characteristics from laboratory measurements, variability from probe-to-probe is assessed, and the methodology is verified using measurements from a rice field throughout a growing season. The root-mean-squared error of the water depth calculated from MCP VWC over the rice growing season was 6.6 mm. MCPs are used to simultaneously monitor ponded water depth, soil moisture content when ponded water is drained, and temperatures in root, water, crop and ambient zones. The insulation effect of ponded water against cold-temperature effects is demonstrated with low and high water levels. The developed approach offers advantages in gaining the full soil-plant-atmosphere continuum in a single robust sensor. View Full-Text
Keywords: water depth sensors; soil moisture sensors; temperature sensors; rice field monitoring; irrigation water depth sensors; soil moisture sensors; temperature sensors; rice field monitoring; irrigation
Figures

Figure 1

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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Brinkhoff, J.; Hornbuckle, J.; Dowling, T. Multisensor Capacitance Probes for Simultaneously Monitoring Rice Field Soil-Water-Crop-Ambient Conditions. Sensors 2018, 18, 53.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top