The microbial composition of reclaimed disturbed soil covers may indicate the degree of their recovery and the processes occurring in them, as well as their suitability for further use in agriculture. Kingisepp phosphorte quarry was developed in the 1960s, and at the end of the 1970s reclamation was performed. This object is unique because its soil physical parameters were monitored for 29 years and the reclamation was performed with the planting of three plant cultures - spruce, larch and pine. In the area with spruce it was leveled with an addition of peaty-mineral mixture, and in areas with larch and pine only mineral substrate without peat was added. However, the analysis of the microbiome composition of the soil cover at the reclamation sites has not yet been carried out. Our study showed that the structure of the studied soil microbiome did not depend on the physicochemical parameters of the soil, the diversity of the soil microbiome did not correlate with the main mineral nutrients, and the dominant pl