Amount of NPK (15:15:15) and SoA fertilizers applied (kg∙ha−1) | N | Mean maize yield (kg∙ha−1) | Std. Error | 95% Confidence Interval for Mean | Minimum maize yield | Maximum maize yield | |
Lower Bound | Upper Bound | ||||||
<375 | 49 | 2608 | 178.11 | 2249.42 | 2965.67 | 1024 | 6144 |
375 (Blanket) | 23 | 2952 | 248.14 | 2437.18 | 3466.41 | 1024 | 5376 |
>375 | 17 | 3379 | 288.43 | 2767.74 | 3990.66 | 1152 | 6144 |
Total | 89 | 2844 | 131.91 | 2581.76 | 3106.05 | 1024 | 6144 |
Levene’s test of variance (p < 0.05)
| 0.90 0.06 |