Table 5.

The effect of organic matter type on foliar K of C. maculata.

Organic matter type	Foliar K concentration (mg g⁻¹)^{^z}
Organic matter type	Coir	Composted biosolids	Composted green waste
Mean^{^y}	2.8 (0.2)b	3.6 (0.3)a	3.5 (0.1)a

↵^z Trees planted in August 2000; the experiment concluded in January 2001. Means are from nine replications, standard error in parentheses.
↵^y Means followed by the same letter are not significantly different (P < 0.05), LSD = 0.4.
Mean foliage K in unamended sand = 3.1 (0.4) mg g⁻¹.