A field experiment was conducted during 2004-2006 taking greengram-mustard-cowpea crop sequence with greengram cv. 'SML 668' in kharif, mustard cv. 'Pusa Jaikisan' in rabi and cowpea cv. 'Pusa Komal' in summer. The objective was to study the effect of conservation tillage and crop establishment practices on performance, energy saving and soil organic carbon content in the system.