The purpose is to determine how to use seeds by comparing indicators adequate for the main cereal crops. The analyses were based on knowing the growth rates of production given a reference year, which were calculated for wheat, barley and maize. The indicators expressed in absolute and relative values particularly referred to annual trends and variations.
In order to know the influence of each factor on crop production, presumptive estimates were made with the help of production functions. The influence factors were represented by the quantity of seeds (x) and the area (x), which were analyzed individually and simultaneously, watching the influence on total production (y), and the formula was presented synthetically by exponential functions. In order to find the intensity of correlation the multiple correlation coefficient was also determined (r). The basis for calculation for 2000-2010 enabled a calculation of these correlation indicators for wheat, barley and maize. In doing so, the intention was to emphasize the features of each cereal crop in order to identify future trends.