FIGURE 1.

Fungal alpha diversity index values observed in different fertilization management systems in continuous tobacco cropping soils (A–D); Pearson’s correlation analysis between alpha diversity index and soil parameters (E). Different lowercase letters indicate significant differences at P < 0.05 (Tukey’s test). SOC, soil organic carbon; TN, total nitrogen; TP, total phosphorus; TK, total potassium; EC, electrical conductivity. The significant levels are indicated by asterisk: *p < 0.05; ^**p < 0.001.