Lentil (Lens culinaris Medic) is the main pulse crop and usually has low production due to numerous factors and cultivation practices. A field study was designed to investigate the best trace elements (Co, Nin, and Se) for sole application or in combination as fertigation after sowing for the lentil variety (NIA Masoor-2005). Comparatively better crop growth and yield with better quality were obtained through the application of Co, Ni, and Se, at 600, 600, and 300 g ha^-1, respectively. The maximum grain yield (1638 kg ha^-1) was harvested from the treatment where Co, Ni, and Se were applied at 600 g ha^-1, which was 15% higher than that of the control receiving no trace elements. According to economic analyses, the best performing treatment is the use of Ni and Co in full doses, as Se has high and does not have economically effective results. All three trace elements had a positive impact on lentil nodulation (up to 33%), seed protein (4.6%), and yield increase (15%) over the control receiving no trace elements. However, with the application of Co and Ni at 600 g ha^-1, each was found to be the most economical and showed comparable results regarding growth, nodulation, and yield contributing parameters compared to Co, Ni, and Se, each at 600 g ha^-1. It was concluded that the use of trace elements (Co, Ni, and Se), individually or in combination, is economical and has the capacity to increase the yield and nodulation of lentils.