Soil becomes enriched during soil formation by decaying organisms.
As the organisms decay in the soil due to the action of several decomposers, their nutrients are released into the soil.
These nutrients that are released into the soil are responsible for making the soil enriched with nutrients.
The decomposers such as the bacteria and fungi play a very important role in the soil enrichment as without them the decaying organisms would not be further broken down and no nutrients could be extracted from them.
