A field experiment was conducted at Agricultural Research Farm, J.V. College Baraut, Baghpat (UP), during two consecutive seasons of Rabi, 2001-02 and 2002-03 to find out the yield potential as influenced by different row ratios (4:1 and 6:1) in lentil+mustard intercropping, Levels of irrigations (control, 0.2 and 0.4 IW/CPE) and doses of fertilizers (30 Kg N+40 Kg P 2O 5/ha and 60 Kg N+60 Kg P 2O 5/ha) were applied in the present study. Association of lentil with mustard under 4:1 row ratio was found more suitable as it accounted for higher value in terms of land equitant ratio (LER) and yield potential. Irrigation @ 0.4 IW/CPE resulted maximum seed yield in lentil (9.90 q/ha.) and mustard (13.30 q/ha), to achieve higher yield advantage and efficient source utilization, Seed yield of both the crops was significantly increased with increasing levels of fertilizers up to 60 KgN+60 Kg P 2O 5/ha.
