Soil forms the uppermost layer of the earths crust, consisting of a mixture of sand, silt and clay particles, water and air, living organisms, DOM and nutrients
What are the 5 layers of soil called?
Organic matter, Humus, Subsoil, Parent rock, Bedrock
What is fertility?
The ability to permit abundant plant growth enabling the plants to absorb water and nutrients
What is a PED?
The soil structure where particles of sand, silt, clay and humus form aggregates
