There are presented results of comparison between grain production technologies that are different in respect of approach to the tillage stage. The scope of investigations covers the factors that shape economic effectiveness of grain production, with the use of conventional technology (including ploughing) and reduced technology (with application of direct drilling). Basing on the determined direct surplus and other economic indices there are presented differences in the application effects of compared tillage systems. There are presented results of evaluation of various tractor combinations with the selected tillage outfits.