Table 2 Shannon indices and Between-Class Analysis (BCA) ordinations of the bacterial communities present in the Red Latosol soil under treatments with urea with or without nitrification inhibitors (DCD and DMPP); polymer sulphur coated urea (PSCU) or calcium nitrate applied to sugarcane.
Treatments | 16S rRNA gene diversity (Shannon index) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
7 DAF* | 16 | 18 | 27 | 35 | 42 | 82 | 158 | |||||||||
Control | 6.2 | ns | 6.1 | ns | 6.0 | ns | 6.2 | a | 6.1 | ns | 6.2 | ns | 6.0 | ab | 6.1 | ns |
UR | 5.8 | 6.0 | 6.0 | 5.3 | b | 5.7 | 5.8 | 5.6 | ab | 6.0 | ||||||
UR+DCD-R† | 5.9 | 6.2 | 5.8 | 6.0 | ab | 6.0 | 6.1 | 5.8 | ab | 6.2 | ||||||
UR+DMPP-R | 5.6 | 6.1 | 5.9 | 5.8 | ab | 6.1 | 6.2 | 6.1 | ab | 6.2 | ||||||
PSCU | 5.9 | 5.9 | 5.8 | 5.8 | ab | 5.1 | 5.2 | 5.4 | a | 5.8 | ||||||
UR+DCD | 5.7 | 6.1 | 5.7 | 5.8 | ab | 5.9 | 6.0 | 6.0 | ab | 6.2 | ||||||
UR+DMPP | 5.7 | 6.0 | 5.9 | 5.8 | ab | 5.5 | 6.1 | 6.1 | b | 6.1 | ||||||
Calcium nitrate | 6.3 | 6.0 | 5.7 | 5.9 | ab | 5.9 | 6.2 | 6.0 | ab | 6.2 | ||||||
