State the role of humus in soil formation.
Answers
Answer:
Agriculture depends on nitrogen and other nutrients found in humus. Some experts think humus makes soil more fertile. Others say humus helps prevent disease in plants and food crops. When humus is in soil, the soil will crumble.Humus is partially decayed organic matter. It makes the soil porous, thereby, increasing its air and water holding capacity. It is rich in nutrients that promote plant growth. Being black, it absorbs heat to warm up the soil.
Answer:
The process that converts soil organic matter to humus feeds the population of microorganisms and other creatures in the soil and thus humus maintains high and healthy levels of soil life . Humus is colloidal substance and increases the cation exchange capacity of soil hence it's ability to store nutrients by chelation