Research Article

Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field

Figure 7

Q-Q plots between laboratory measured versus laboratory visible and near infrared (vis-NIR) predicted (a) and laboratory measured versus online vis-NIR predicted (b) soil organic carbon (SOC). The two plots were based on 25 samples of the validation set.
569057.fig.007a
(a)
569057.fig.007b
(b)