THE SOIL

ORGANIC MATTER

microorganisms

Keelback slug, Myriapod, Bacteria, Beetle, Lice(Louse), Mite, Lizard, Shrew, Larvae, Mole, Protozoa, Earth Worm, Nematode, Fungi, Ant.

HUMUS

Well decomposed organic matter in the soil

Organic matter: substance composed of animal and vegetable material.

MINERAL SUBSTANCES

CLAY

SAND

LOAM / SILT

STRUCTURE

WATER

AIR