OBJECTIVES: The objective of this study was to evaluate the performance of a seed drill for seeding barley and vetch mixtures having different ratios and to determine their impact on plant emergence, yield and feed quality of component crops. METHODS: The laboratory and field experiments were conducted to determine the performance of the seeder using pure barley, common vetch, and their mixtures in ratios, namely 100:0, 0:100, 75:25, 50:50, 25:75. The seed flow and distribution uniformity across the rows were determined within laboratory conditions, while other response variables were assessed in the field conditions. RESULTS: The coefficient of variation values of flow evenness for barley and vetch were found to be 1.0-5.5% and 0.3-2.1%, respectively. Seed distribution uniformity of each row unit were also determined ranging from 4.2% to 10.7% and from 0.4% to 1.4% for barley and vetch, respectively. The goodness criteria values ranged between 66.4%-86.0% for the laboratory tests while the corresponding values had a range of 78%-86% for field samples. Based on the findings in this work, the overall ranges of variation factor values were 0.43-1.28 and 0.36-0.77 for laboratory and field evaluations, respectively. Furthermore, the maximum yield was 42,620 kg ha CONCLUSIONS: It appears that the results in this work demonstrated that the seed drill could have a great potential to be used effectively for the seeding of barley as well as vetch mixtures as a function of various ratios to enhance the overall yield of the crop.