Nutrient recycling is the process by which essential nutrients are returned to the soil and made available for plants to use again. This occurs naturally through the decomposition of organic matter, such as dead plants and animals, by microorganisms like bacteria and fungi. These organisms break down complex materials, releasing nutrients like nitrogen, phosphorus, and potassium back into the soil. In agricultural practices, nutrient recycling can be enhanced through methods like composting and crop rotation. Composting involves collecting organic waste and allowing it to decompose, creating nutrient-rich soil amendments. Crop rotation helps maintain soil health by alternating different crops, which can prevent nutrient depletion and promote a balanced ecosystem.