Table 9.

The effect of organic matter type and profile design on root density of C. maculata at sample depth 350–500 mm (14–20 in) (back-transformed means).

Root density Lv (cm cm−3)z
CoirComposted biosolidsComposted green wasteOverall meany
Layered profile1.62.52.52.2b
Uniform profile2.25.55.04.2a
Overall mean1.9b4.0a3.7a

  • ↵z Trees planted in August 2000; the experiment concluded in January 2001. Means are from six replications.

  • ↵y Overall means followed by the same letter down the column and across the row are not significantly different (P < 0.05).

  • Mean root density in unamended sand = 2.3 cm cm−3.