The cost of production using the Model 6.200 lt/ha, typical of a large sector of small drums argentine, comes manifesting a evolution we trudge the price of milk will covering minimally in the operational phase (Costs of Short-and Medium-Term), being in all cases insufficient for those fields that rent the earth, making them unfeasible (Cost Long Term). The dairy producer who needs to rent their land should produce +25% over the average of the Model to close their accounts. 