The demographic growth of the population and the raising number of animals imposed the increase of the cultivated surface with corn, and most of all, the increase of the yield of every cultivated unit, goals that could only be achieved through the using of chemical fertilizers and irrigations. The experiments took place on 2006, in Sarbatoarea village, Dolj County, by collecting samples from the soil, establishing the precursor crop, of 2005, as wheat, followed by physiological and biochemical tests, also considering the quantity and the quality of the production.