Question

why is humus important

Answer 1

Humus is important because it retains moisture in the soil, loosens the soil permitting better aeration and drainage, and encourages the increase of soil organisms which help make nutrients available to plants. It adds body to light soil and loosens heavy, sticky soils.

Answer 2

Humus is important because humus contains many useful nutrients and minerals for healthy soil, with nitrogen being the most important of all. Nitrogen is particularly important for plant growth because it is primarily responsible for vegetative growth and a building block for protein in the plant.