Table 3.
Soil chemical analyses.
| Treatment | pH H2O | OM |
Total N |
K |
P |
Cu |
Zn |
Fe |
Mn |
|---|---|---|---|---|---|---|---|---|---|
| g kg−1 | mg kg−1 | ||||||||
| At the beginning of the experiment | |||||||||
| Soil:sand | 7.41 | 4.10 | 0.01 | 21 | 10 | 0.77 | 3.02 | 6.59 | 3.73 |
| At the end of the experiment | |||||||||
| T0 | 8.3 | 7.5 b | 0.34 | 79 b | 11 d | 0.66 | 0.47 bc | 3.30 a | 0.91 bc |
| T25 | 8.3 | 7.4 b | 0.44 | 97 ab | 11 d | 0.72 | 0.53 abc | 3.29 a | 0.98 abc |
| T50 | 8.3 | 8.2 ab | 0.31 | 102 ab | 12 cd | 0.67 | 0.46 bc | 3.12 bc | 0.83 c |
| T75 | 8.3 | 9.0 ab | 0.40 | 97 ab | 14 bcd | 0.67 | 0.43 c | 3.08 c | 0.80 c |
| T100 | 8.3 | 10.0 a | 0.53 | 112 a | 15 bc | 0.66 | 0.63 a | 3.23 ab | 1.05 ab |
| T125 | 8.3 | 9.8 a | 0.31 | 104 ab | 16 a | 0.71 | 0.57 ab | 3.20 abc | 1.05 ab |
| T150 | 8.2 | 10.1 a | 0.62 | 118 a | 21 a | 0.63 | 0.46 c | 3.31 a | 1.11 a |
Means in the same column with the same small letter do not differ significantly (p ≤ 0.05, as judged by the Tukey test).