The stable form of soil organic matter is known as what?

The stable form of soil organic matter is known as humus. Humus is a complex mixture of partially decomposed organic material that results from the breakdown of plant and animal residues in the soil. It plays a crucial role in maintaining soil health as it improves soil structure, enhances nutrient retention, and increases the soil's water-holding capacity.

Humus is characterized by its stability compared to other forms of organic matter, such as fresh plant residues or compost, which can decompose rapidly. This stability allows humus to persist in the soil for extended periods, continuously contributing to soil fertility and overall ecosystem function.

Understanding humus's role in the soil ecosystem is vital for sustainable agriculture, as it emphasizes the importance of maintaining a healthy organic matter supply in the soil to support plant growth and crop production.