“…In this study, bacterial community and soil physicochemical properties were studied in 2018 after applying N fertilizers (0, 52.5, 105, 157.5, and 210 kg N ha(−1)) for a long (2003–2018) and a short (2003–2004) duration in a wheat field on the Loess Plateau of China. Soil bacteria were determined using 16S rRNA Illumina-MiSeq(®), and the prediction function was analyzed through PICRUSt. …”
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“…Based on a 17-year wheat field experiment, we explored the effect of five N fertilizer rates (0, 52.5, 105, 157.5, and 210 kg ha(−1) yr(−1)) on the AOA and AOB community composition. …”
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“…Isotopic techniques in farmed areas may provide insight into the mechanism underlying the N cycle. (15)N-labeled urea was applied to microplots within five different fertilized treatments 0 kg ha(–1) (N1), 52.5 kg ha(–1) (N2), 105 kg ha(–1) (N3), 157.5 kg ha(–1) (N4), and 210 kg ha(–1) (N5) of a long-term field trial (2003–2021) in a rainfed wheat field in the semi-arid loess Plateau, China, to determine post-anthesis N uptake and remobilization into the grain, as well as the variability of (15)N enrichment in aboveground parts. …”
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