Abstract

UAV-based Mapping of NDVI in Multicropped Maize-based Systems
Track: Agriculture
Authors: Julius Adewopo, Peter Craufurd, Alpha Kamara, Bernard Vanlauwe, Helen Peter

We launched the e-Bee-1 UAV to acquire fine-resolution imagery in multi-cropped smallholder farmlands, within maize zone of Nigeria. UAV-derived NDVI estimates at resampled 4m resolution correlated well with ground measurements (R=0.88; r2=0.78). Paired t-test of means indicated that UAV-NDVI was comparable to NDVI-measured (P < 0.001), and descriptive statistics (including min, max, and variance) suggests that the ground measurements are reliable for re-calibrating UAV-based NDVI estimates.