Abstract
Grain crop is considered as a main crop in Sulaimani governorate which has great role to satisfy the local demand and ensure the food security. Managerial, political and economic factors affected on fluctuation of it’s annual product. The research objective is to determine the effectiveness of the mentioned factors on production and to find proper solution to raise the production level, hence the importance of the research can be noticed through the creation of food security, production developing, obtaining additional source for national income generation and foreign currency during the exportation of surplus produced. The research results show that estimated ratio effect of the both factors rainwater and cultivated area on the production is about 59.4% and the estimated residuals ratio effects is about 40.6% which represents the factors of (economic, policy, managerial procedures and military actions). There are continuously changes and fluctuations in cultivated areas from year to year due to economic, managerial, legal and political procedures also there is continuously gap between produced (supplied) quantity and demand quantity.