The effects of mulch, lawn, and tilling treatments on the growth of bare-root landscape trees.
Root density at soil depth (mm2 surface/150 cm2 soil) | Diameter | Crown | ||||
---|---|---|---|---|---|---|
Treatment | 0-5 cm | 5-10 cm | 10-15 cm | Total | increase (cm) | devel.* |
1 Lawn | 41.8a** | 161.6a | 203.7a | 407.1a | 0.96a | 0.920a |
2 Mulch | 634.6b | 535.8b | 418.0b | 1588.4b | 2.54b | 1.504b |
3 Lawn & till | 46.2a | 177.7a | 206.3a | 430.2 | 0.60a | 0.767a |
4 Mulch & till | 25l.7ab | 410.3b | 415.8b | 1077.8b | 2.31b | 1.362b |