Abstract : This research is concerned with studying the best type and method of irrigation as well as the best cultivated area to reduce the cost of producing dunums of wheat crop in Iraq , and was based on data taken from the Ministry of Planning / Central Statistical Organization About cost of wheat crop production for (12) Iraqi governorates except Kurdistan, Nineveh, Salah al-Din, Anbar) and the sample size (554) according to the cost survey carried out by the Ministry of Planning / Central Statistical Organization for 2017, The results of the research showed that there are significant statistical differences between production costs when using two types of irrigation (irrigated by rain , irrigated by methods) By comparing the values of the two methods we conclude that the method of irrigated by rain is better than other methods because it gives lower production costs when used. There are statistical differences between the methods of irrigation (surface , pumps , sprinklers) and through the post hoc comparision we concluded that the best way to feed is sprinklers and there is no difference between pumps and Sih on the cost of production.
The results also showed that there are statistically significant differences between the cultivated areas on the production cost and through the result of the post-hoc comparison and then compare between the arithmetic means we concluded the area (1-10 donums) are the most areas that increase the cost of production and there is no difference between the other areas, Also there is no difference between the type of irrigation when using different areas
