In the nitrogen cycling genes, the relative abundance of nifH did not differ significantly among treatments, although numerically higher values were observed in the F group, while the relative abundance of genes related to nitrification ( amoA/B/C, hao ) showed a trend of decreasing under the two types of plant cultivation.
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Metagenomics reveals the functional profiles of soil microorganisms and nutrient cycling under long-term grass vegetation cropping.
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