Table 5.
Effect of fertilization methods and tillage systems on soil organic carbon and soil enzyme activity.
| Fertilization | Soil organic carbon (g kg−1) | Acid phosphatase (μg PNP g−1 h−1) | Alkaline phosphatase (μg PNP g−1 h−1) | Dehydrogenase (μg PNP g−1 h−1) |
|---|---|---|---|---|
| FYM (F1) | 16.261 a | 136.611 d | 2347.912 b | 68.498 b |
| Compost (F2) | 16.312 a | 168.392 c | 2317.288 b | 76.388 ab |
| Chemical fertilizer (F3) | 16.198 a | 135.901 d | 2076.918 c | 37.701 c |
| FYM + Compost (F4) | 16.401 a | 199.162 a | 3183.612 a | 85.712 a |
| FYM + Chemical (F5) | 16.308 a | 171.694 bc | 2094.191 c | 67.692 b |
| Compost + Chemical (F6) | 16.289 a | 173.215 bc | 2086.506 c | 67.925 b |
| FYM + Compost + Chemical (F7) | 16.279 a | 179.424 b | 3122.299 a | 81.801 a |
| Control (F8) | 16.198 a | 104.926 e | 2049.105 c | 34.612 c |
| TILLAGE | ||||
| No Tillage (NT) | 16.322 a | 189.172 a | 2879.663 a | 68.159 a |
| Minimum Tillage (MT) | 16.286 a | 159.857 b | 2358.958 b | 62.886 b |
| Conventional Tillage (CT) | 16.217 a | 125.976 c | 1989.693 c | 63.796 b |
Mean values in each column with the same letter(s) are not significantly different using LSD tests at 5% of probability. (FYM: farmyard manure).