We give your farm a brain.
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Arvessa sends a citrus farm one page a week: how much water each irrigation block needs, in millimetres. The numbers come from public satellite images and the FAO-56 method, adjusted to what we measure on the farm itself. Nothing to install, nothing new to learn.
Values from the FAO-56 calculation, checked against satellite imagery.
The card farms receive each week (example values).
Fields east of Biougra, Souss-Massa — where the weekly numbers are calibrated. Photo: Helge Høifødt, CC BY-SA 3.0
Water is the cost that decides everything.
In the Souss-Massa basin, most blocks are still irrigated by routine. The pump runs when it has always run. Water and diesel cost more every year, and much of the valley draws on groundwater that is not being replaced, so that routine gets more expensive every season.
What is usually missing is a weekly answer to a plain question: how much water, in which block, this week.
How the weekly number is made
Satellite passes
Sentinel-2 and Landsat pass over the valley every few days. The images show how each block is coping between irrigations.
The FAO-56 calculation
The FAO-56 method turns weather and crop stress into millimetres of water per block. We calibrate the calculation with soil measurements taken on the farm.
A weekly card
The amounts arrive once a week, block by block, on WhatsApp or on paper. You read the card and run the pumps accordingly.
You pay from the savings.
The fee is a share of what you save: 20 percent of the water cost the farm measurably cuts. There is no fixed fee and no equipment to buy. If the water bill does not go down, you pay nothing.
Where we are
In development — the FAO-56 baseline is being built now.
First farms are calibrated during the coming pilot season, block by block, against field measurements.
We start with a small group of partner farms in the region.