This research was conducted to test the effect of tillage techniques (CT and RT) on the yield of three crops; corn, sunflower and winter wheat; in a long-term tillage experiment. The data were tested for significance using independent samples t-test and the results for all three crops showed no significant effect of tillage technique on the yield. The results suggest that all crops have a weak relationship with tillage, however, sunflower appeared to be the most sensitive to the tillage of the three tested crops.