Om Data Quality; Monitoring The Window; Varying Field Conditions - Veris U3 Operating Instructions Manual

Pub# OM20-U3-pH

OM Data Quality

Monitoring the window – This can be done by watching OM readings at row ends when unit is raised, if they
are not within 10% of the initial raised readings check windows for mud, smearing, and/or window breakage.
Varying Field Conditions – In order to have high data quality the field conditions need to be the same for an
entire data set. Any of the following can affect data quality: variances in soil moisture do to different
management conditions (ex. tillage), change in down pressure or depth gauge wheel setting. If conditions
change within a field, start a new file.
The map example in figure 2 shows mapping on two separate days; the left portion of the map was mapped
under on a different day under different soil conditions. This part of the field should have been mapped on a
separate file. This same effect can occur also by adjusting down pressure or sensor depth.
Figure 2
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