Research Article
Determination of Land Suitability Criteria for Maize Hybrid in Boalemo Regency Based on Optimum Yield and Selected Land Quality
Table 3
Outer loading (loading factor) and the average variance extracted from study variables.
| Indicators (land characteristics) | Latent variables (land quality) | Loading factors | t stat | Status | AVE |
| X1.1 (temperature) | ⟶ | X1 (temperature) | 1.000 | 11.192 | Valid | 1.000 | X2.1 (rainfall) | ⟶ | X2 (water availability) | 0.838 | 0.085 | Valid | 0.906 | X2.2 (wet month) | ⟶ | 0.989 | 0.999 | Valid | X2.3 (dry month) | ⟶ | 0.850 | 0.428 | Valid | X2.4 (LGP) | ⟶ | 0.993 | 1.431 | Valid | X3.1 (drainage) | ⟶ | X3 (oxygen availability) | 1.000 | 0.000 | Valid | 1.000 | X4.1 (texture) | ⟶ | X4 (rooting condition) | 0.013 | 0.066 | Invalid | 0.573 | X4.2 (coarse material) | ⟶ | 0.921 | 1.086 | Valid | X4.3 (effective depth) | ⟶ | −0.899 | 1.047 | Valid | X5.1 (pH, H2O) | ⟶ | X5 (nutrient retention) | 0.647 | 0.857 | Valid | 0.360 (invalid) | X5.2 (pH, KCl) | ⟶ | 0.570 | 1.973 | Valid | X5.3 (organic C) | ⟶ | 0.831 | 3.135 | Valid | X5.4 (CEC) | ⟶ | 0.436 | 1.381 | Invalid | X5.5 (base saturation) | ⟶ | 0.365 | 0.845 | Invalid | X6.1 (total N) | ⟶ | X6 (nutrient availability) | 0.760 | 3.226 | Valid | 0.585 | X6.2 (P availability) | ⟶ | 0.587 | 1.385 | Valid | X6.3 (K exchangeable) | ⟶ | 0.897 | 6.907 | Valid | X7.1 (ESP) | ⟶ | X7 (sodicity) | 1.000 | 0.000 | Valid | 1.000 | X8.1 (slopes) | ⟶ | X8 (erosion hazard) | 0.954 | 21.438 | Valid | 0.932 | X8.2 (soil erosion) | ⟶ | 0.941 | 18.308 | Valid | X9.1 (inundation height) | ⟶ | X9 (flooding hazard) | 0.984 | 4.213 | Valid | 0.984 | X9.2 (inundation period) | ⟶ | 0.985 | 3.918 | Valid | X10.1 (rock outcrops) | ⟶ | X10 (land preparation) | 0.998 | 189.133 | Valid | 0.995 | X10.2 (surface rock) | ⟶ | 0.998 | 320.273 | Valid |
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AVE, average variance extracted; LGP, long growth period; CEC, cation exchange capacity; ESP, exchangeable sodium percentage.
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