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 | ||
---|---|---|---|
Coir | Composted Biosolids | Composted green waste | |
5y | 2.5 (0.1)e | 4.3 (0.7)b | 3.7 (0.2)c |
10 | 2.5 (0.2)e | 5.0 (0.9)a | 4.2 0.8)b |
20 | 3.0 (0.2)d | 3.8 (0.4)c | 2.8 (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.