92 



Table 13. Correlation coefficients of some soil properties 

 with extractable and total sulfur in Florida 

 Spodosols. 







Extractable S 3 





Total 



s- 5 



Soil property 



n 



r a 



n 



r 



rt 







Surface Horizons 









Total N 



18 



0.70 0.0012 



18 



0.97 



0.0001 



Organic C 



26 



0.69 0.0001 



26 



0.91 



0.0001 



Clay fraction 



28 



0.67 0.0001 



28 



0.78 



0.0001 



Soil pH 



26 



-0.48 0.0131 





no significant 

 correlation 







Subsurface Horizons 









Gibbsite - 



10 



0.78 0.0081 



10 



0.73 



0.0165 



Organic C 





no significant 

 correlation 



25 



0.91 



0.0001 



Total N 



9 



0.47 0.2026 



9 



0.88 



0.0015 



Soluble Al* 





no significant 

 correlation 



16 



0.86 



0.0001 



Horizon depth 





no significant 

 correlation 



27 



-0.51 



0.0068 



Soil pH 





no significant 

 correlation 



25 



-0.45 



0.0243 



Percent in clay fraction. 



Na-pyrophosphate soluble. 



n = number of samples; r 

 significance level. 



§ 



correlation coefficient: a = 



