Table 6.
Effect of different establishment and residue regimes on soil carbon pools at 0–15 cm depth after wheat harvest
| Treatments | MBC (mg kg−1) | WBC (g kg−1) | POXC (mg kg−1) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Tillering | Flowering | Harvest | Tillering | Flowering | Harvest | Tillering | Flowering | Harvest | |
| TPR -CTW | 99.26 ± 0.71d | 123.58 ± 3.23d | 102.70 ± 1.75d | 3.38 ± 0.02c | 3.37 ± 0.01d | 3.37 ± 0.02c | 112.61 ± 1.98f | 114.54 ± 1.92e | 114.65 ± 1.89e |
| TPR- CTW (RI) | 109.89 ± 1.07c | 134.21 ± 1.71c | 113.33 ± 1.02c | 3.39 ± 0.01c | 3.39 ± 0.02cd | 3.39 ± 0.02bc | 118.88 ± 2.08e | 120.92 ± 2.04d | 121.06 ± 2.03de |
| TPR-ZTW (RR) | 110.95 ± 2.36c | 135.27 ± 2.35c | 114.39 ± 2.28c | 3.39 ± 0.01bc | 3.40 ± 0.02bc | 3.40 ± 0.04abc | 126.06 ± 1.58d | 130.84 ± 2.04c | 130.88 ± 1.97c |
| TPRAWD - CTW | 101.64 ± 3.89d | 125.96 ± 8.24d | 105.08 ± 3.06d | 3.39 ± 0.01c | 3.39 ± 0.01cd | 3.40 ± 0.02abc | 113.50 ± 1.03f | 118.28 ± 1.04d | 118.33 ± 0.98d |
| TPRAWD- ZTW (RR) | 129.84 ± 2.68b | 154.16 ± 3.49b | 133.29 ± 2.83b | 3.40 ± 0.02bc | 3.41 ± 0.02abc | 3.41 ± 0.02abc | 136.60 ± 1.45b | 140.17 ± 1.35b | 140.24 ± 1.66b |
| ZTDSR-CTW (RI) | 112.31 ± 5.76c | 136.63 ± 3.96c | 115.76 ± 9.54c | 3.43 ± 0.01a | 3.42 ± 0.01ab | 3.43 ± 0.02ab | 130.58 ± 2.30c | 142.77 ± 3.67b | 143.01 ± 3.37b |
| ZTDSR-ZTW (RR) | 137.98 ± 0.67a | 162.30 ± 1.36a | 141.42 ± 2.33a | 3.43 ± 0.02a | 3.43 ± 0.02a | 3.43 ± 0.02a | 140.87 ± 0.87a | 151.97 ± 1.38a | 152.25 ± 1.64a |
| ZTDSR - CTW | 108.98 ± 0.82c | 133.30 ± 2.19c | 112.42 ± 0.76c | 3.42 ± 0.01ab | 3.42 ± 0.01ab | 3.43 ± 0.01ab | 117.74 ± 0.41e | 121.31 ± 1.08d | 121.59 ± 1.37d |
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