Table 4: Sorption coefficients for P on Immokalee and Candler fine sand using three electrolytes.

Soil Depth (cm) Supporting electrolyte KD (L kg-1)
Immokalee 0-15 0.01 M KCl 0.53 ± 0.11
Immokalee 15-30 0.01 M KCl 0.50 ± 0.19
Candler 0-15 0.01 M KCl 2.87 ± 0.43
Candler 15-30 0.01 M KCl 3.79 ± 0.87
Immokalee 0-15 0.005 M CaCl2 0.75 ± 0.13
Immokalee 15-30 0.005 M CaCl2 0.74 ± 0.32
Candler 0-15 0.005 M CaCl2 3.46 ± 0.65
Candler 15-30 0.005 M CaCl2 4.43 ± 0.50
Immokalee 0-15 Fertilizer mixture 0.45 ± 0.10
Immokalee 15-30 Fertilizer mixture 0.43 ± 0.20
Candler 0-15 Fertilizer mixture 1.73 ± 0.15
Candler 15-30 Fertilizer mixture 2.05 ± 0.89
Statistics
Soil type (S) ***
Electrolyte (E) ***
Depth (D) ***
S × D ***
S × E ***
E × D ***
E × S × D ***

KD: Linearized KD using Equation 12 presented as mean ± one standard deviation of 3 replications and a Cmax of 15 mg L-1; ***: 'Significant at 0.001 probability level'.