Soil organisms are important for keeping our ecosystems healthy. They help with things like soil fertility, nutrient recycling, and the structure of the soil. Here’s how they contribute:

1. Decomposition:
   Soil organisms, like bacteria and fungi, break down dead plants and animals. This process recycles nutrients back into the soil. In fact, about 90% of the breakdown of organic material is done by tiny microorganisms.

2. Nutrient Cycling:

• Nitrogen-fixing bacteria turn nitrogen from the air into forms that plants can use. This is super important because plants need nitrogen to grow. It’s said that around 50% of the nitrogen used in farming comes from these helpful bacteria.
• Mycorrhizal fungi help plants take in phosphorus. They extend the plant’s roots, making it easier for plants to get this nutrient. Studies show that plants helped by these fungi can absorb up to 80% more phosphorus.

3. Soil Structure Formation:
   Soil organisms help clump together soil particles, which improves the soil's structure and airflow. Healthy soils with a variety of organisms can be 20-40% more porous. This means water can flow better, and roots can grow more easily.

4. Pest and Disease Regulation:
   Some soil organisms help control pests naturally. About 80% of the tiny roundworms in the soil eat pest species, which helps keep the ecosystem balanced.

In summary, the health of soil ecosystems relies on the variety and activity of soil organisms. They are essential for farming and keeping our environment healthy.