Abstract
The article presents the results of a five-year study of plant-microbe interactions in a small medium sodium solonetz. The research was carried out in the Barabinsk lowland of Siberia, where Bromus inermis was cultivated for 33 years in the fodder crop rotation. Its phytomelioration effect was reflected in soil desalinization which was proved by decrease of EC in 0-20 cm layer by 11.3 times, decrease of its oligotrophy by 6.3 times, replenishment of solonetz nitrogen fund and intensification of microbiological processes of humus accumulation. The taxonomic structure of microbiome under the crop rotation impact with B. inermis altered towards increasing the representation of genera from alpha-, beta- and delta-proteobacteria classes, functionally associated with the improvement of soil fertility, Gemmatimonadetes as a dryness indicator and reducing the Acidobacteria groups Gp4 and Gp6, associated with the pH control.
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