How it work
RGB PHOTOMAP
Image that we would see witht he naked eye from above the field
NDVI PHOTOMAP
NDVI index, commonly know as vigour index wich, based on a colour scale indicates the state of plant healt. Vegetation usually falls with in the value 0.3 and up, the higher the value, the healthier the plant. For low values associated in this case with the colour yellow and green, we expect stress in the plant, which can be caused by too much or too little water, fertiliser or a parasite attack.
PRESCRIPTION MAP
Zoning map of the field that indicates to the farmer the health of his field in as implified way, usually these maps are inserted in the tractors to perform differentiated fertilization