“Allelopathic Potential of Some Crops and Vegetables Root Exudates on Mixed Farming in Dohuk Governorate Iraq”. Rafidain Journal of Science 17, no. 5 (April 1, 2006): 39–52. Accessed September 4, 2026. https://rsci.uomosul.edu.iq/index.php/rsci/article/view/46382.