Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Field Calibration of PR2 Capacitance Probe in Pullman Clay‐Loam Soil of Southern High Plains

Field Calibration of PR2 Capacitance Probe in Pullman Clay‐Loam Soil of Southern High Plains AbbreviationsEMelectromagneticRMSEroot mean square errorVWCvolumetric water contentAccurate measurement of soil water content is essential to characterize soil water dynamics and use for irrigation scheduling. The simplest and most precise method of soil water measurement is the gravimetric technique (Gardner, 1986), which is widely used for the calibration of other methods. This method is labor‐intensive, slow, invasive, destructive for use in controlled environments (Mwale et al., 2005), and impossible at a fine time scale (e.g., minutes). Introduction of the neutron scattering method revolutionized indirect measurement of in situ volumetric water content (VWC, water volume/soil volume ratio) in the early 1950s (Gardner and Kirkham, 1952). Several modifications in sensors and calibration of this method led to its high reliability and widespread use (Evett and Steiner, 1995). However, the use of the neutron scattering technique requires licensing and periodic safety training for compliance with existing radioactive hazard regulations, which is expensive and a burden to researchers (Fares et al., 2004). Neutron probes are also difficult to maintain, constitute a potential radiation hazard to users, and prevent use with unattended monitoring (Mwale et al., 2005). As an alternative, the electromagnetic (EM) probes or dielectric methods were introduced in the late 1980s and 1990s (Evett http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Agrosystems, Geosciences & Environment" Wiley

Field Calibration of PR2 Capacitance Probe in Pullman Clay‐Loam Soil of Southern High Plains

Download PDF
View on Publisher Site
7 pages

Loading next page...
 
/lp/wiley/field-calibration-of-pr2-capacitance-probe-in-pullman-clay-loam-soil-unHb1pyKsg
Publisher
Wiley
Copyright
© American Society of Agronomy
eISSN
2639-6696
DOI
10.2134/age2018.10.0043
Publisher site
See Article on Publisher Site

Abstract

AbbreviationsEMelectromagneticRMSEroot mean square errorVWCvolumetric water contentAccurate measurement of soil water content is essential to characterize soil water dynamics and use for irrigation scheduling. The simplest and most precise method of soil water measurement is the gravimetric technique (Gardner, 1986), which is widely used for the calibration of other methods. This method is labor‐intensive, slow, invasive, destructive for use in controlled environments (Mwale et al., 2005), and impossible at a fine time scale (e.g., minutes). Introduction of the neutron scattering method revolutionized indirect measurement of in situ volumetric water content (VWC, water volume/soil volume ratio) in the early 1950s (Gardner and Kirkham, 1952). Several modifications in sensors and calibration of this method led to its high reliability and widespread use (Evett and Steiner, 1995). However, the use of the neutron scattering technique requires licensing and periodic safety training for compliance with existing radioactive hazard regulations, which is expensive and a burden to researchers (Fares et al., 2004). Neutron probes are also difficult to maintain, constitute a potential radiation hazard to users, and prevent use with unattended monitoring (Mwale et al., 2005). As an alternative, the electromagnetic (EM) probes or dielectric methods were introduced in the late 1980s and 1990s (Evett

Journal

"Agrosystems, Geosciences & Environment" – Wiley

Published: Jan 1, 2019

References

  • Stocker beef production on low‐water‐input systems in response to legume inclusion: I. Forage and animal responses
    Baxter, L.L.; West, C.P.; Brown, C.P.; Green, P.E.
  • Soil moisture measurement by an improved capacitance technique: I. Sensor design, and performance
    Dean, T.J.; Bell, J.P.; Baty, A.J.B.
  • Soil water depletion in irrigated mature pecans under contrasting soil textures for arid Southern New Mexico
    Deb, S.K.; Shukla, M.K.; Sharma, P.; Mexal, J.G.
  • PR2 profile probe systems
  • User manual for the profile probe: Type PR2
  • Soil water sensing for water balance, ET, and WUE
    Evett, S.R.; Schwartz, R.C.; Casanova, J.J.; Heng, L.K.
  • Precision of neutron scattering and capacitance type soil water content gauges from field calibration
    Evett, S.R.; Steiner, J.L.
  • Soil profile water content determination
    Evett, S.R.; Tolk, J.A.; Howell, T.A.
  • Improved calibration functions of three capacitance probes for the measurement of soil moisture in tropical soils
    Fares, A.; Abbas, F.; Maria, D.; Mair, A.
  • Dual field calibration of capacitance and neutron soil water sensors in a shrinking–swelling clay soil
    Fares, A.; Buss, P.; Dalton, M.; El‐Kadi, A.I.; Parsons, L.R.
  • Soil water content measurement with a high‐frequency capacitance sensor
    Gardner, C.M.K.; Dean, T.J.; Cooper, J.D.
  • Determination of soil moisture by neutron scattering
    Gardner, W.; Kirkham, D.
  • Methods of soil analysis: Part 1
    Gardner, W.H.
  • Soil type affects accuracy of dielectric moisture sensors
    Hanson, B.R.; Peters, D.
  • Laboratory and field evaluation of five soil water sensors
    Huang, Q.; Akinremi, O.O.; Rajan, R.S.; Bullock, P.
  • Calibration of capacitance probe sensors in a saline silty clay soil
    Kelleners, T.J.; Soppe, R.W.O.; Ayars, J.E.; Skaggs, T.H.
  • Field calibration of a capacitance water content probe in fine sand soils
    Morgan, K.T.; Parsons, L.R.; Wheaton, T.A.; Pitts, D.J.; Obreza, T.A.
  • Soil–water–solute process characterization
    Muñoz‐Carpena, R.; Ritter, A.; Bosch, D.D.
  • Can the PR1 capacitance probe replace the neutron probe for routine soil‐water measurement?
    Mwale, S.S.; Azam‐Ali, S.N.; Sparkes, D.L.
  • Official soil series description (ODSs)
  • Calibration of a capacitance system for measuring water content of tropical soil
    Polyakov, V.; Fares, A.; Ryder, M.H.
  • The conversion of permittivity as measured by a PR2 capacitance probe into soil moisture values for Des Moines lobe soils in Iowa
    Qi, Z.; Helmers, M.J.
  • Measurement of soil water content with a 50‐MHz soil dielectric sensor
    Seyfried, M.S.; Murdock, M.D.
  • In‐field calibration of a dielectric soil moisture meter designed for use in an access tube
    Whalley, W.R.; Cope, R.E.; Nicholl, C.J.; Whitmore, A.P.
  • Measurement of soil moisture change in spatially heterogeneous weathered soils using a capacitance probe
    Wu, K