The implementation of the applications made extensive use of Microsoft’s Azure cloud environment. A great example is annotations, which use Azure Speech and LUIS to translate voice input into relevant information. Users can now simply stand by a plant and verbally tell it its status (“Today I count 5 new flowers and the fruit setting is good”). This information is automatically updated in the linked Letsgrow database.
Plant stress is also an important indicator of crop health. Abnormalities, from nutritional imbalance, to fungi and herbivory, to climate imbalance, affect plant stress. The Normalized Difference Vegetation Index, NDVI for short, can be used to detect this. NDVI combines the red channel of a color image with an infrared image to detect stress in plants before it is visible to the naked eye.