Abbreviation for "Normalized Differenced Vegetation Index" or "Normalized Density Vegetation Index" (in German "normalized differentiated vegetation index"). The applied vegetation index in agriculture is calculated on the basis of satellite image data. Vegetation indices are one of the primary sources for observation and analysis of the Earth's surface. The NDVI is calculated on the basis of the intensity of the reflected light in the red and near infrared spectral range, which is recorded by satellites. The index is based on the fact that healthy vegetation reflects relatively little in the visible spectral range and relatively high in the next near infrared range. In contrast, other surface materials such as soil, rocks, bodies of water or even dead vegetation show no such significant difference.
in the viniculture can thus determine the vigor, the condition of the deciduous roof and also the quality of the fruit and derive correspondingly necessary Deciduous care measures be performed. The optimal time for a measurement is the veraison (Maturity onset). There are usually dependent on the soil type and the topography a very large fluctuation in the earnings, The different conditions of a large vineyard area are reflected in the division into blocks, sub-blocks and zones according to NDVI measurement results. These are then not uniform, but in the context of precision viticulture managed individually.