.Physical properties:

Improves the Structure and Texture of the soil.
Helps in loosening the soil, thereby better aeration and better growth of the plants.
Increases the water holding capacity of soil and thus helps in drought situation.
Because of the presence of Humic, Fulvic and amino acids, high amount of humus gets deposited in the soil which helps in absorption of the sun light energy.
Prevents water and nutrient losses in light and sandy soils.