Field Science
Figure 11. Left: Association between soil moisture (volumetric water content – VWC) and canopy reflectance in wetting agent trial. Figure 12. Right: Association between localized dry spot (rated visually) and canopy reflectance in wetting agent trial.
Figure 10. Localized dry spot in bentgrass turf; some
plots are treated with wetting agents.
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SportsTurf | January 2014
young technique outside of research applications.
Calibration. The sensitivity of the tool to so many factors means
that in order to isolate effects of interest, we need to learn to calibrate
to remove extraneous noise (we use untreated control plots in research, and similar techniques can be used in management).
History. The more the tools are used on a particular turf area, the
better the information. The advantage of these tools is that they automatically record and time-stamp the information, and if so-
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