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

Table 2

The bacterial community’s Shannon diversity index (H) in the bulk soil of the different microcosm setups at days 0, 30, and 50 after incubation.

Treatments	Shannon diversity index
	Day 0	Day 30	Day 50
SR	1.05 ± 0.01^a	—	—
SB	0.97 ± 0.06^a	—	—
SR-AN	—	1.14 ± 0.03^bc	1.21 ± 0.06^d
SR-AE	—	1.01 ± 0.09^ab	0.92 ± 0.06^ab
SB-AN	—	1.23 ± 0.06^c	1.34 ± 0.06^e
SB-AE	—	0.96 ± 0.15^a	1.01 ± 0.04^bc
CTSR-AN	—	—	1.04 ± 0.06^c
CTSR-AE	—	—	0.99 ± 0.07^bc
CTSB-AN	—	—	1.00 ± 0.07^bc
CTSB-AE	—	—	0.87 ± 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, d, e) are significantly different according to the T-test for day 0 and the Duncan’s Multiple Range Test for day 30 and day 50 ().