This Presentation explains the Concept of Soil as Science.

12. Pedology Edaphology
1. Pedology is the word which
come from the Greek word
‘Pedon’ which means soil or
earth
1. Edaphology is the word which
come from the Greek word
‘Edaphos’ which means soil or
ground
2. Pedology deals with soil
formation, soil genesis, soil
classification and description of
soil properties.
2. Edaphology deals with soil in
relation to growth, nutrition and
yield of crops or plants.
3. Pedology considers the soil as
a natural body and places minor
emphasis on its immediate
practical utilization.
3. Edaphology considers the
various properties of soils as
they relate to plant production.

14. Fig. Volume composition of mineral soil.
25%
water
25%
air
5% Organic matter
45%
Mineral
matter