1. Pedological Approach: The origin of the soil, its classification and its
description are examined in Pedology. (From Greek word pedon, means soil or
earth).
Pedology is the study of soil as a natural body and does not focus on the soil’s
immediate practical use.
A pedological study examines and classifies soil as they occur in their natural
environment. Pedology deals with pedogenesis, soil morphology, and soil
classification,
2. Edaphological Approach: Edophology (from Greek word edaphos, means
soil or ground) is the study of soil from the standpoint of higher plants.
Edaphology studies the way soils influence plants, fungi, and other living things.
Edaphologists consider the various properties of soil in relation to plant
production. They are practical and have the production of food and fiber as their
ultimate goal.