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

navigate by keyword : earthworms organic farming underground mulch microorganisms diversity level sustainability clay section productive soil fauna nutrients diagramming fungi plants agriculture phosphorus symbiosis natural potassium roots nutrientrich view earth layer hydration crosssection plant absorption cutaway loam decomposers ecological humus ground dirt healthy illustrating insects sand water decomposition stems root development microbes system life fertile matter gardening visualizing minerals photosynthesis retention organisms charting health ecosystem nutrient cycling creatures fertility slice growth nitrogen ecosystems habitat nature earthworm tunnels depicting biodiversity substrate structure 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