Response of Bacterial Community Structure in the Bulk Soil and Rice Straw Residues under Different Crop Rotation Systems

Table 3

The diversity (H value) of the bacterial community colonizing rice straw residues in microcosm setups at days 14, 30, and 50 of incubation.

Treatments	Shannon diversity index
	Day 14	Day 30	Day 50	Average
SR-AN	1.18 ± 0.06^a	1.14 ± 0.03^bc	1.21 ± 0.06^b	1.18 ± 0.02^b
SR-AE	1.06 ± 0.05^a	1.01 ± 0.09^ab	0.92 ± 0.06^a	1.00 ± 0.01^a
SB-AN	1.33 ± 0.10^b	1.23 ± 0.06^c	1.34 ± 0.06^c	1.30 ± 0.04^c
SB-AE	1.13 ± 0.01^a	0.96 ± 0.15^a	1.01 ± 0.04^a	1.03 ± 0.06^a

The value after ± showed the standard deviation (n = 3). Means in a column followed by the same letter are not significantly different. Means marked with different letters (a, b, c) are significantly different according to Duncan’s Multiple Range Test ().