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. 2025 Nov 17;16:1640980. doi: 10.3389/fmicb.2025.1640980

Figure 2.

Bar graphs compare soil properties across six treatments: SSa, SZa, SLa, SSAFa, SZAFa, SLAFa. Properties assessed are pH, EC (µS/cm), OM (g/kg), OC (g/kg), TN (g/kg), NH4+-N (mg/kg), TP (g/kg), AP (mg/kg), TK (g/kg), and AK (mg/kg). Each graph shows variation and significance levels marked by letters above the bars, with color codes representing treatments.

Soil phosphatase activity (A), urease activity (B), dehydrogenase activity (C), and invertase activity (D) under different crop rotation patterns.