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