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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Effect of petrol (P) and cocksfoot (G) on changes in (a) the colony development (CD) index, and (b) soil microorganisms and the value of their ecophysiological diversity (EP) index. Homogeneous groups denoted with letters (a,b) were calculated separately for each of the microorganisms.