soil ecosystem plant roots earthworms microscopic organisms underground network garden life fertile earth

navigate by keyword : earthworms development microorganisms diversity rich humus photosynthesis crosssection diagramming organic matter aeration soil plant layers plants slice gardening loam earth creatures water retention phosphorus ground displaying fertile environment insects organisms tilling dirt earthworm tunnels agriculture productive illustrating compost structure fertility sustainability absorption farming habitat depicting nutrients cutaway biodiversity potassium ecosystems hydration ecosystem nitrogen growth bacteria root system substrate fungi decomposition charting portraying layer natural balance mulch nutrientrich representing minerals showing section fertilization level visualizing stems cultivation decomposers health generated

Soil ecosystem: plant roots, earthworms, microscopic organisms, underground network, garden life, fertile earth

Soil ecosystem: plant roots, earthworms microscopic organisms, underground network, garden life, fertile earth, environmental balance, ecological graphic, educational diagram, healthy gardening AI generated