Abstract
The need to guide investors in the cultivation of wheat under sprinkler irrigation central role in the desert land in the province of Anber ,and determine the optimal size of the farm and the cost per unit produced under sprinkler irrigation in the adoption of ideal size , so it was the goal of the study estimate the cost long-run function economical analysis of the function. It was found that the volume of production optimization were (170950) k.g is achieved when the area bit the farm (239.8) donm and an average cost of production per kg about ( 115 ) dinars, and show that the production volume majesty for-profit (232010.850 ) k.g is achieved when the area of the farm (324.8) donms and miximution cost per kilogram to (164) dinars, and the average optimal productivity per donm (713) k.g / sq.m and also found that the farms that operate within the area of economic efficiency was ( 34) farm and constitution (85%) of the number of farms in the sample.
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