Research Article
Explaining Soil Fertility Heterogeneity in Smallholder Farms of Southern Ethiopia
Table 4
Pearson correlation matrix of soil properties in the studied districts in Ethiopia.
| | Sand | Silt | Clay | pH | TN | OC | P | S | B | Cu | Fe | Mn | Zn | Ca | K | Mg | CEC | % | — | % | % | mg/kg | cmol (+)/kg |
| Sand | 1.0 | 0.66 | −0.80 | 0.28 | −0.35 | −0.24 | 0.19 | −0.14 | −0.05 | −0.08 | 0.19 | −0.13 | 0.11 | 0.20 | 0.04 | −0.10 | −0.05 | Silt | | 1.00 | −0.98 | 0.31 | −0.20 | −0.07 | 0.29 | −0.15 | 0.04 | 0.01 | 0.37 | −0.21 | 0.26 | 0.28 | 0.06 | −0.07 | 0.02 | Clay | | | 1.00 | −0.32 | 0.25 | 0.12 | −0.28 | 0.16 | −0.02 | 0.01 | −0.35 | 0.20 | −0.24 | −0.28 | −0.06 | 0.08 | 0.00 | pH | | | | 1.00 | −0.16 | −0.14 | 0.44 | −0.35 | 0.33 | 0.27 | −0.20 | 0.37 | 0.38 | 0.66 | 0.65 | 0.52 | 0.53 | TN | | | | | 1.00 | 0.95 | 0.13 | 0.28 | 0.24 | 0.30 | −0.04 | −0.03 | 0.20 | −0.03 | 0.18 | 0.06 | 0.19 | OC | | | | | | 1.00 | 0.14 | 0.25 | 0.24 | 0.34 | 0.01 | −0.11 | 0.27 | 0.00 | 0.18 | 0.01 | 0.18 | P | | | | | | | 1.00 | 0.04 | 0.42 | 0.43 | −0.03 | 0.23 | 0.48 | 0.55 | 0.58 | 0.36 | 0.52 | S | | | | | | | | 1.00 | 0.05 | −0.07 | −0.05 | −0.09 | −0.08 | −0.27 | −0.05 | −0.22 | −0.08 | B | | | | | | | | | 1.00 | 0.35 | −0.14 | 0.34 | 0.32 | 0.39 | 0.52 | 0.35 | 0.43 | Cu | | | | | | | | | | 1.00 | −0.04 | 0.19 | 0.40 | 0.47 | 0.39 | 0.43 | 0.50 | Fe | | | | | | | | | | | 1.00 | −0.42 | −0.02 | −0.09 | −0.30 | −0.22 | −0.27 | Mn | | | | | | | | | | | | 1.00 | 0.25 | 0.28 | 0.47 | 0.28 | 0.32 | Zn | | | | | | | | | | | | | 1.00 | 0.39 | 0.48 | 0.21 | 0.35 | Ca | | | | | | | | | | | | | | 1.00 | 0.63 | 0.77 | 0.89 | K | | | | | | | | | | | | | | | 1.00 | 0.62 | 0.69 | Mg | | | | | | | | | | | | | | | | 1.00 | 0.86 | CEC | | | | | | | | | | | | | | | | | 1.00 |
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, , significant at , respectively. |