Spotting water stress two weeks before it showed to the eye

Thandiwe Mwansa · Farmer

I flew my phone over the north block in Chibombo and ran it through Rigo Studio's vegetation stress overlay. The RGSI map flagged a dry patch along the old furrow line well before the leaves started curling. This is exactly the kind of precision farming decision support smallholders in Zambia have been missing, catching drought stress from ordinary RGB imagery, no expensive multispectral camera needed. Adjusted irrigation on that block and the difference by harvest was obvious.