How can a winegrower harness vineyard spatial variability to make better wines?   Numerous studies carried out since 2000, on irrigated and non-irrigated vineyards have shown that vineyards exhibit great spatial variability for many factors such as yield or berry quality components (Santesteban et al, 2013). This spatial variability can […]

The use of NDVI in agriculture is no longer a new idea. As a result of numerous publications demonstrating the capacity of this measure to assist vintners in their technical decision-making, the number of NDVI maps  providers has increased considerably in recent years. Given the many choices available, winegrowers may […]

NDVI is an English acronym meaning Normalized Difference Vegetation Index, which could be translated as a Normalized Vegetation Index. This index reflects the quantity of so-called “photosynthetically active” biomass. It is calculated according to the formula: Where R and PIR are respectively reflectances measured in the red and near infrared […]