Ahmed, Omer Ali, Muhsin Ali Ahmed, and Abdulkhaliq Saleh Mahdi. 2013. “EFFECT OF POTASSIUM FERTILIZER, ORGANIC MATTER AND DEFICIT IRRIGATION ON COTTON”. Diyala Agricultural Sciences Journal 5 (2):360-72. https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/2758.