What is organic matter in soil called?
of brown, carbon-rich and green, nitrogen-rich compostable materials in compost bins or piles. Either way, humus encourages soil aeration, drainage, fertility and structure. It promotes plant and soil health by the more effective, more efficient access of nutrients and water through sufficient air and water pore spaces. And it discourages soil compaction, erosion and runoff by the more efficacious bank and water holding capabilities that it promotes in soil.
