Table 2.
The means of Fe, Mn, Cu and Zn analyses in forage from farms in the seven areas with the means of the calculated Fe/Mn ratios included.
| Area | log (Fe) | log (Mn) | log (Fe/Mn) | Cu | Zn |
|---|---|---|---|---|---|
| I | 4.91 b | 4.79 a | 0.10 | 6.66 bc | 24.1 bc |
| II | 5.23 a | 4.43 b | 0.78 b | 7.42 ab | 24.8 c |
| III | 5.15 ab | 4.28 bc | 0.86 ab | 6.90 bc | 24.8 c |
| IV | 5.14 - | 4.76 - | 0.38 - | 8.27 - | 28.7 - |
| V | 5.38 a | 4.19 c | 1.20 a | 6.58 c | 28.0 ab |
| VI | 5.28 a | 4.19 c | 1.10 ab | 7.52 ab | 28.9 a |
| VII | 5.24 ab | 4.63 a | 0.65 b | 8.14 a | 26.0 abc |
| SED means | 0.118 | 0.106 | 0.159 | 0.376 | 1.13 |
| (excl. Area IV) |
Log (Fe): the logarithm of the mean iron concentrations; Log (Mn): the logarithm of the mean manganese concentrations;
Log (Fe/Mn): the logarithm of the mean iron/manganese ratios; Cu: mean concentrations of copper (mg kg-1); Zn: mean concentrations of zinc (mg kg-1). SED: Standard error of difference. Means marked with the same letter, a, b or c, constitute groups of non-significant differences at the α = 0.05 (5%) level of significance. Area IV is not included in the construction of non-significant ranges and the SED is the mean of values excluding comparisons with Area IV.