Spectral bands’ digital values and vegetation indices’ average evolution in the wheat (A & B) and corn (C & D) parcels.

<p>The vertical bars are standard deviations (s. d.). In the abscissa is the remote image timing (T1- early April to T7- early October, approximately one-month intervals); the data are presented as the means, and the vertical bars represent the standard deviation (s.d.) of six parcels of approximately 3 ha each. For each land use, the average data of the images followed by a different letter are significantly different at P≥0.05.