Abstract
This research was presented to estimate the acreage of crops and wheat and rice under hypothesis of reciprocal influence of the process of amending the acreage of various economic factors and to reflect the overlap in the production of crop decisions. The results indicated that the response Madlti Show rice Almekdrtan and wheat under the premise of the amendment process and mutual use in the method Altan SUR equation are selected to represent Alaqppin the cultivated area of crops and related variables. When information was estimated using SUR is more efficient than those estimated in accordance with the usual method of least square. It reflects the improvement in the efficiency of the information estimated the values expressed in standard diviation . It has also estimated that compatibility information for areas planted in previous year for both crops in the supply response Madlti with economic logic and statistical morale supports the hypothesis of reciprocal influence of the process of amending the spaces
