Warqaa Faiz Tawfeeq and Ihsan Abdl Azez Abdul Raheem 2023. Effect of Chelate Iron addition And Cyanobacteria on growth and active substances of Celery Plant (Apium graveolens L.). Tikrit Journal of Pure Science. 20, 1 (Feb. 2023), 33–41. DOI:https://doi.org/10.25130/tjps.v20i1.1132.