Biofertilizer is a natural substance that contains living microorganisms, which help improve soil fertility and plant growth. These microorganisms, such as bacteria and fungi, enhance nutrient availability by breaking down organic matter and fixing atmospheric nitrogen. This process supports healthier plants and can lead to higher crop yields. Using biofertilizers is an eco-friendly alternative to chemical fertilizers. They promote sustainable agriculture by reducing reliance on synthetic inputs, improving soil health, and minimizing environmental pollution. Common types of biofertilizers include rhizobium, mycorrhiza, and azospirillum, each serving specific functions in enhancing soil and plant health.