Although the O 2 group also exhibited some promotion effects on lettuce plants, these effects did not reach statistical significance ( Figures 1B–D , p > 0.05).
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Effects of micro/nano-ozone bubble nutrient solutions on growth promotion and rhizosphere microbial community diversity in soilless cultivated lettuces.
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The sentences
In the O 3 group, there was a decreasing trend in the relative abundances of Proteobacteria and Bacteroidetes, while the proportions of Actinobacteria and Patescibacteria increased.
The majority physical and chemical indexes of the substrate also exhibited an increasing trend, while SC and UE activities decreased.