What Is Humus And Its Function? Humus serves as a source of nitrogen, pho- sporus, and sulfur for higher plants; improves structure, drainage, and aera- tion; increases water-holding, buffering, and exchange capacity; enhances the dissolution of silicate minerals; and serves as a source of energy for the growth and development of micro- organisms. What is
What Is Humus Example? The definition of humus is partially decomposed organic matter. Partially decomposed plant matter in the soil is an example of humus. A dark-brown or black organic substance made up of decayed plant or animal matter. Humus provides nutrients for plants and increases the ability of soil to retain water. What is
What Is Humus Mostly Made Of? In addition to the plant material in leaf litter, humus is composed of decaying animals, such as insects, and other organisms, such as mushrooms. Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the