As the results of this study indicated, the leaf percentage of lucerne at the growth stage of small buds was significantly higher than in the growth stage of bloom. The harvested mass was of higher quality. It can be recommended to ensile lucerne at thematurity stage of large buds. At this stage, the crude protein content was only about 7.5 % lower than at the small buds stage and at this stage the WSC content was highest and the crude protein content was still optimal. The yields of dry matter were highest at the maturity stage after bloom. At the stage of maturity after bloom, the dry matter yield was increased but the nutritive value was reduced. All the additives improved the quality of lucerne silage. All treated silages contained higher amountsof lactic acid. The addition of the inoculant with Lactobacillus buchneri improved acetic acid in the silage. The additives decreased the intensity of proteolysis process.