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. 2021 May 1;26(9):2664. doi: 10.3390/molecules26092664

Figure 2.

Figure 2

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.