Keywords
SAVI
SEBTUBEL 2-MS
spectral signature
spectroradiometry
Espectrorradiometría
firma espectral
NDVI
SAVI
SENTINEL 2-MS
How to Cite
Abstract
Spectral information has been widely applied to study the growth and nutritional conditions of different crops used in the agricultural field; however, there is a research gap regarding forage crops in tropical conditions. This study compared the multi and hyperspectral information of the African star pasture crop (Cynodon nlemfuensis) for dairy cattle feeding using field spectroscopy and satellite information of Sentinel-2. This study determined spectral signature heterogeneity of this crop due to the randomness of the feeding pattern of the cattle and the continuous change of the environmental conditions. Different crop heights in the sampling areas affected the reflectance values, leaf area index and vegetation indices directly. For the NDVI and SAVI, R2 values of 0,725 and 0,446 were achieved for spectral indices between field and satellite data. This research is relevant because it lays the baseline for the use of spectral information regarding the analysis of tropical pastures employed in dairy cattle feeding using remote sensing and a field spectroradiometer.
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