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

navigate by keyword : earthworms substrate dirt nutrientrich soil health root development structure crosssection rich cutaway nutrients illustrating gardening ecosystem bacteria farming humus system organic nutrient cycling underground mulch slice clay showing growth decomposition organisms decomposers visualizing ecosystems potassium microorganisms diversity ecological balance loam life aeration water retention natural diagramming matter plants healthy hydration fertility compost layers layer sand plant fungi level symbiosis environment microbes productive view depicting representing tilling fauna photosynthesis agriculture crop rotation section cultivation nitrogen absorption insects ground phosphorus 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