ECONOMIES OF SCALE FOR THE WHEAT CROP BY USING THE STYLE OF SPRINKLER IRRIGATION IN THE PROVINCE OF SALAHALDIN FOR PRODUCTIVE SEASON OF 2012-2013(AL DOUR APPLIED MODEL)

Abstract

The aims of this research is to estimate the total cost function for long- run for wheat crop by using cross-sectional data for a sample of producers in Al-dour district in Salahaldin province during( 2012-2013) productive season, long-run average total cost function (LRATC) was derived from estimated total cost function. The( LRATC) function showed that the least-cost farm output is (1039.38 kg/don) and (97.4 don) for wheat respectively. The optimal area is higher than actual area planted by crop . Thus the producers are recommended to expand their planted area in order to minimize their production costs, the economies efficiency mounted to(58 % )in wheat farms from number of farms work with in economies efficiency area ,and most of the farmers were centering in the economics of Scale which was ( 84.8%) from number farms that test them the study , for the diseconomy of Scale that centering in (15.2%)from number the farm in it ,therefore We recommendate that the best watering can achieve a higher throughput capacity of the sprayer is (120 don) and neglect sprays other.