TABLE 2.

Bacterial diversity indices of six scenarios for clusters at ≥97% sequence similarity against the reference database.

Scenarioa	Shannon	Simpson	Chao1	OTU
ScI	9.20 ± 0.09ab	0.993 ± 0.00a	4643 ± 97b	3278 ± 43b
ScII	9.37 ± 0.35a	0.993 ± 0.00a	5306 ± 108a	3765 ± 127a
ScIII	8.24 ± 0.33b	0.978 ± 0.01ab	4551 ± 36b	3055 ± 48b
ScIV	8.58 ± 0.19ab	0.984 ± 0.00a	4688 ± 50b	3185 ± 62b
ScV	8.00 ± 0.40b	0.964 ± 0.01b	4446 ± 22b	3034 ± 60b
ScVI	8.76 ± 0.06ab	0.987 ± 0.00a	4670 ± 93b	3288 ± 69b

Where; ScI, conventional rice-wheat system; ScII, partial CA based rice-wheat-mungbean system; ScIII, partial CSA based rice-wheat-mungbean system; ScIV, partial CSA based maize-wheat-mungbean system; ScV, full CSA based rice-wheat-mungbean system with sub surface drip irrigation; ScVI, full CSA based maize-wheat-mungbean system with sub surface drip irrigation. ^aRefer Table 1 for scenario description. ^bMeans followed by the same letters within each column are not statistically different (p ≤ 0.05, Duncan’s multiple range test). Values are the average of three replicates (n = 3); means ± standard error SE.