Research Article

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

Figure 4

Scatter plot of predicted versus laboratory measured soil organic carbon (SOC) of the validation set (25 samples) for laboratory scanned (a) and online scanned soil spectra (b).
569057.fig.004a
(a)
569057.fig.004b
(b)