N | Mean vitality score | Std | |
---|---|---|---|
Conventional | 1461 | 4.3 a | 0.03 |
Sand mix | 94 | 4.2 a | 0.13 |
Structural soil | 536 | 4.1 a | 0.05 |
Super planting pit | 73 | 4.9 b | 0.03 |
↵zMean values in the same column differ significantly when followed by different letters (Tukey test, P < 0.05).