Salinity is the major environmental factors that lead to a deterioration of agricultural land and a reduction in crop productivity worldwide. The given investigations were undertaken to find out the effect of salinity and allelopathy on growth, biochemical contents and accumulation of Osmo-protectants in studied Crop and also to assess whether exogenous application of some essential micronutrients (Mn+B+Zn) through foliar spray could ameliorate the adverse effects of salt+ allelochemical stress on growth and biochemical activities of methi plant. Foliar spraying with micronutrient induced stimulatory effects on growth parameters and nutrients uptake either before or after the salinization treatments. The results of this study suggest that foliar spray with micronutrient may have a potential role for increasing plant tolerance to salinity and allelopathy stress. The application spray appeared to ameliorate the toxic effects of excessive sodium and allelochemical present in growing medium which is reflected by producing economically feasible yield even beyond the threshold value of salinity for studied crop.