Salisu, A. B., Yusuf, H., Peter, S. G., Garba, N. H., Haruna, S., Danladi, N. Z., Sani, N. H., & Salisu, B. (2026). Azotobacter Species as Sustainable Biofertilizers for Crop Productivity, Soil and Plant Health: A Comprehensive Review. UMYU Scientifica, 5(1), 1-9. https://doi.org/10.56919/usci.2651.001