Response of soil biological properties and bacterial diversity to different levels of nitrogen application in sugarcane fields

AMB Express

Table 3 Indexes of soil bacterial diversity and richness in sugarcane fields under four N application treatments

Treatments	Shannon index	Simpson index	Ace index	Chao1 index	Coverage
H	6.19 ± 0.06b	0.0053 ± 0.0001a	2726.32 ± 276.81b	2697.06 ± 257.66b	0.98
M	6.19 ± 0.15b	0.0052 ± 0.0011a	2902.96 ± 279.16b	2856.06 ± 258.19b	0.98
L	6.64 ± 0.12a	0.0035 ± 0.0007b	3600.80 ± 36.77a	3621.92 ± 28.72a	0.98
CK	6.04 ± 0.09b	0.0059 ± 0.0007a	2133.27 ± 155.38c	2138.07 ± 159.11c	0.99

All data are presented as the mean ± SD (standard deviation)
H high N application in the sugarcane soil (964 kg ha⁻¹), M medium N application in the sugarcane soil (482 kg ha⁻¹), L low N application in the sugarcane soil (96 kg ha⁻¹), CK no N application in the sugarcane soil (0 kg ha⁻¹)
Different letters in the same column indicate significant differences between treatments at P < 0.05 among the means of the four treatments