Table 3.

The effect of the interaction between organic matter type and concentration on foliar P concentration of C. maculata.

Organic matter %Foliar P concentration (mg g−1)z
CoirComposted BiosolidsComposted green waste
5y2.5 (0.1)e4.3 (0.7)b3.7 (0.2)c
102.5 (0.2)e5.0 (0.9)a4.2 0.8)b
203.0 (0.2)d3.8 (0.4)c2.8 (0.2)d
  • z Trees planted in August 2000; the experiment concluded in January 2001. Means are from three replications, standard error in parentheses.

  • y Means in the table followed by the same letter are not significantly different (P < 0.05), LSD = 0.3.

  • Mean foliage P in unamended sand = 2.8 mg g−1.