Abedul Kareem Erabi Sabaa Alkurtany, Shaimaa Abd Mohhamed Ali and Ayad Ahmed Hamada 2023. Preparation of Biofertilizer from Azospirillum brasilense Bacteria and test its Impact on Growth and Yield of Wheat Triticum aestivum L. in Gypsiferous Soil. Tikrit Journal of Pure Science. 21, 7 (Feb. 2023), 50–56. DOI:https://doi.org/10.25130/tjps.v21i7.1109.