Table 1 Soil organic carbon and available nutrients status in soil during crop growth at various stages.
Treatment | SOC (Mg ha−1) | SMBC(CO2-C mg kg−1 soil day−1 | SMBN(NH3-N mg kg−1 soil day−1) | Soil respiration(CO2-C mg kg−1 soilday−1) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tillering | Grand growth | Harvest | Tillering | Grand growth | Harvest | Tillering | Grand growth | Harvest | Tillering | Grand growth | Harvest | |
T1: N0P0Ko | 19.96 | 21.25 | 18.03 | 574.5 | 1533.3 | 831.1 | 11.4 | 14.7 | 12.4 | 198.0 | 242.0 | 165.0 |
T2:N75P13K25 | 20.44 | 23.18 | 19.64 | 634.5 | 1757.8 | 855.6 | 13.7 | 15.2 | 14.8 | 209.0 | 297.0 | 176.0 |
T3:N150P26K50 | 21.73 | 22.85 | 19.31 | 684.5 | 1906.7 | 880.0 | 15.6 | 17.4 | 16.0 | 242.0 | 319.0 | 198.0 |
T4:N75P13K25 + MC | 21.62 | 22.64 | 20.13 | 712.4 | 1967.4 | 912.3 | 15.9 | 17.9 | 16.3 | 263.4 | 325.3 | 214.5 |
T5:N150P26K50 + MC | 21.57 | 23.50 | 21.25 | 855.6 | 2102.2 | 953.3 | 17.1 | 19.6 | 17.3 | 275.0 | 341.0 | 264.0 |
CD for years | 0.529 | 0.516 | 0.577 | 116.8 | 224.3 | 105.9 | 1.70 | 2.06 | 1.761 | 23.8 | 33.6 | 23.3 |
CD for treatments | 1.20 | 1.32 | 1.25 | 67.35 | 134.45 | 67.34 | 0.87 | 0.92 | 0.78 | 14.39 | 16.45 | 13.45 |
CD for years × treatments | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS |
Initial | 19.75 | 624.6 | 12.4 | 204 | ||||||||
