Why are biosolids used in agriculture?

Biosolids are treated sewage sludge that can be safely applied to land as a fertilizer. They are rich in nutrients, such as nitrogen, phosphorus, and organic matter, which are vital for plant growth. By recycling these nutrients back into the soil, biosolids enhance soil fertility, promote plant health, and improve overall agricultural productivity. This practice also helps close the nutrient cycle, reducing the need for chemical fertilizers and supporting sustainable agriculture.

Using biosolids promotes soil structure and can help retain moisture, which further supports crop growth. Additionally, the application of biosolids can contribute to improving soil biology and health, leading to long-term benefits for agricultural ecosystems.