Table 3.
Effect of different establishment and residue regimes on total organic carbon (TOC)
| Treatments | TOC (g kg−1) | |||
|---|---|---|---|---|
| After Rice | After Wheat | |||
| 0–15 cm | 15–30 cm | 0–15 cm | 15–30 cm | |
| TPR -CTW | 4.46 ± 0.03d | 3.76 ± 0.03b | 4.46 ± 0.01d | 3.76 ± 0.02e |
| TPR- CTW (RI) | 4.54 ± 0.07bc | 3.82 ± 0.05ab | 4.54 ± 0.07bc | 3.82 ± 0.01b |
| TPR-ZTW (RR) | 4.53 ± 0.06bc | 3.79 ± 0.03ab | 4.49 ± 0.02cd | 3.79 ± 0.0 cd |
| TPRAWD - CTW | 4.54 ± 0.02abc | 3.81 ± 0.01ab | 4.53 ± 0.01c | 3.81 ± 0.01bc |
| TPRAWD- ZTW (RR) | 4.58 ± 0.02ab | 3.83 ± 0.02a | 4.58 ± 0.01ab | 3.83 ± 0.02b |
| ZTDSR-CTW (RI) | 4.54 ± 0.03bc | 3.79 ± 0.03ab | 4.53 ± 0.02c | 3.79 ± 0.01de |
| ZTDSR-ZTW (RR) | 4.61 ± 0.02a | 3.85 ± 0.07a | 4.61 ± 0.01a | 3.86 ± 0.02a |
| ZTDSR - CTW | 4.48 ± 0.01cd | 3.78 ± 0.08ab | 4.48 ± 0.01d | 3.78 ± 0.02cd |
Note: TPR: Puddled Transplanted Rice, CTW: Conventionally Tilled Wheat, ZTW: Zero-tilled Wheat, TPRAWD: TPR with Alternate Wetting and Drying, ZTDSR: Zero-tilled Direct Seeded Rice, RI: Residue incorporation and RR: Residue retention; The mean values sharing any common small cap letters under demark no significant differences in between (p > 0.05) and vice-versa