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Fig. 1 | Plant Methods

Fig. 1

From: Improved estimation of aboveground biomass in wheat from RGB imagery and point cloud data acquired with a low-cost unmanned aerial vehicle system

Fig. 1

Location of the experimental site and layout of the field plots randomly distributed with treatments in nitrogen level, wheat variety and sowing density. The orthophoto on the right was captured with the UAV system at the anthesis stage of wheat on April 22, 2017. Note: GCP ground control point, SP sampling region; D1 = 0.25 m, D2 = 0.4 m, N0 = 0 kg N ha−1, N1 = 150 kg N ha−1, N2 = 300 kg N ha−1, V1 = ‘Yangmai 15’, V2 = ‘Yangmai 16’

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