Table 2. Soil inorganic N content (kg N ha− 1) in the different soil layers and the entire profile at different sampling dates for the fallow (Fa), first kill (FK) and second kill (SK) treatments.
Oct 2011 | Apr 2012 | Oct 2012 | Apr 2013 | Oct 2013 | |
0–40 cm | |||||
Fa | 94 (13.7) | 126.8 (7.9) a | 135.3 (15.4) | 29.7 (3.8) b | 71.54 (5.38) c |
FK | 94 (13.7) | 46.9 (7.1) b | 121.5 (16.6) | 56.9 (3) a | 119.37 (28.48) b |
SK | 94 (13.7) | 37 (8.2) b | 154 (8) | 24.8 (4.5) b | 171.72 (2.36) a |
40–80 cm | |||||
Fa | 24.7 (9.5) | 71.6 (10.6) a | 86.1 (4.6) a | 40.1 (1.8) a | 72.22 (7.43) |
FK | 24.7 (9.5) | 30.4 (5.3) b | 48.3 (4.4) b | 42.6 (3.5) a | 65.38 (19.89) |
SK | 24.7 (9.5) | 25.4 (5.1) b | 48.1 (7.1) b | 27.1 (4.1) b | 39.39 (2.68) |
80–120 cm | |||||
Fa | 26.1 (11.1) | 60.6 (3.5) | 66.7 (11) | 68.8 (3.3) a | 100.37 (11.74) a |
FK | 26.1 (11.1) | 56.1 (24.5) | 61.5 (29.3) | 47 (7.4) b | 61.59 (17.91) ab |
SK | 26.1 (11.1) | 34.5 (3.7) | 33.5 (6.3) | 32.3 (8.3) b | 39.24 (5.83) b |
Soil profile (0–120 cm) | |||||
Fa | 144.8 (22.8) | 259 (8.0) a | 288.1 (25.4) | 138.6 (5.1) a | 244.13 (19.05) |
FK | 144.8 (22.8) | 133.32 (27.5) b | 231.3 (31.2) | 146.6 (10.7) a | 246.34 (52.87) |
SK | 144.8 (22.8) | 96.9 (15.4) b | 235.6 (14.2) | 84.2 (13.3) b | 247.34 (7.9) |
Means with standard error in parentheses.
Within a date and depth, means with the same letter are not significantly different between kill dates at P<0.05.