Torres: Chroma 3: Live soil, use of ancestral and traditional techniques for fertilization, pasture cultivation

I am not certain at all how this image is ethnographic, but I want to know how I can view it that way, which, perhaps will take some more "grounding," so to speak, of the image itself. I gather that this is a "healthy" soil particle that glows from the use of ancestral and traditional techniques for cultivation of crops. To the image statement, I would add precisely what these techniques are that rejuvenate both the soil and the people whose lives are entwined with fertilizing, planting, and harvesting. It seems that multiple human and nonhuman lives are part of this potentially multispecies ethnographic image.