Microbial inoculants are products that contain beneficial microorganisms, such as bacteria, fungi, or algae, which are added to soil or plants. These microorganisms help improve soil health, enhance nutrient availability, and promote plant growth by forming symbiotic relationships with roots or decomposing organic matter. Farmers and gardeners use microbial inoculants to boost crop yields and improve soil fertility. Common types include rhizobia for legumes, which fix nitrogen, and mycorrhizal fungi, which enhance nutrient uptake. By introducing these beneficial microbes, growers can reduce the need for chemical fertilizers and promote sustainable agricultural practices.