In the light for many years' - statical trial on fertilization cattle and pi g slurry, results of influence on yield accumulation NPK in soil are presented herein. Trial with cat tle slurry was performed on Luvisols classified to IV A class, good wheat complex and trial with pig slurry on brown soil classified to class IV, of rye- complex good (according to Polish Soil Sciences Society). The following plants in given order were grown: winter wheat + winter after crop - rye, maize, spring barley. In the result of slurry application increase of yield expressed in cereal units and crude protein was noted. Effectiveness of l kg of nitrogen application was relatively low. Utilization of nitrogen from slurry was also low. Content of mineral nitrogen as well of available phosphorus and of potassium in soil increased under effects of slurry application.