The weathered layer of earth crust

1. EDAPHOLOGY
Edaphology
Pedology

2. Soil
• “The weathered layer of earth
crust is called soil”.

3. Equation
Parent material + Soil pores + SOM
=
Soil

4. Advantages
1. Plants are anchored in the soil
2. It is a source of nutrients.
3. It acts as a great reservoir of water.
4. It is a source of oxygen.

5. Branches of Soil Science
1.Pedology
2.Edaphology

6. Pedology
• “The study of soil in their natural
environment is called pedology.”

7. Pedology
• It deals with
1. Pedogenesis
2. Soil morphology
3. Soil classification

8. EDAPHOLOGY
• “The study of influences of soils on
living things, particularly plants is
called edaphology.”

9. Sub-Fields
1. Agrology
2. Environmental Soil Science