Soil is more than a medium that holds a plant in place. It is a living system where water, air, nutrients, roots, microorganisms, and organic matter interact.
Why begin with function?
The USDA Natural Resources Conservation Service defines soil health as the continued capacity of soil to function as a vital living ecosystem that sustains plants, animals, and humans. Its functions include regulating water, sustaining life, cycling nutrients, and providing physical stability for roots.
What can be read on site?
Structure, porosity, rooting depth, and water movement provide practical signals. No single observation or product describes the whole system; better decisions connect soil, crop, irrigation, and management context.
This is general editorial information, not a technical recommendation for a specific site or crop.