Many organisms consume humus, playing a vital role in nutrient cycling within the soil ecosystem. Humus, the dark organic matter in soil, is a food source for a variety of decomposers.
Decomposers that Consume Humus
- Bacteria: These microscopic organisms are key players in breaking down organic matter in humus, releasing nutrients back into the soil.
- Fungi: Similar to bacteria, fungi secrete enzymes that decompose complex organic compounds in humus. They form intricate networks within the soil, further enhancing decomposition.
- Earthworms: These invertebrates are well-known for their role in soil aeration and nutrient cycling. They ingest humus, digesting organic matter and excreting nutrient-rich castings, enriching the soil. For example, earthworm excretions include nitrogen, a crucial plant nutrient.
Some farmers and growers create compost to enhance humus formation, providing a fertile environment for plant growth. This process relies on the activity of these decomposers.
The references also highlight that humans consume hummus, a food dip made primarily from chickpeas, tahini, lemon juice, and garlic – not to be confused with soil humus. The Reddit thread discusses a children's book about a man who eats soil humus, which is not advisable due to potential health risks. Numerous recipes for hummus (the food) are readily available online.
