Bio fertilizers are natural inputs containing beneficial microorganisms that boost soil fertility and plant growth. Unlike chemical fertilizers, bio fertilizers enrich the soil by fixing atmospheric nitrogen, solubilizing phosphorus, and stimulating root development. They improve plant nutrient uptake and enhance resistance to diseases and stress. Common microbial strains include Rhizobium, Azospirillum, and Bacillus species, which work symbiotically with plants. Bio fertilizers are an eco-friendly and sustainable option for farmers seeking to reduce dependency on synthetic inputs. Regular us