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. 2016 Jun 24;11(6):e0158268. doi: 10.1371/journal.pone.0158268

Fig 3. Relationships between the clippings nitrogen content of Cynodon dactylon x transvaalensis and NDVI data obtained with a ground-based spectral reflectance instrument (Trimble’s GreenSeeker sensor) and an unmanned aerial vehicle (UAV).

Fig 3

Values represented the 4 replications.