116 



Table 24. Sulfur and nitrogen nutrition and yields of 28-day old 

 sorghum-sudangrass in a Lakeland fine sand in the 

 greenhouse. 







Fertilizer 



Plant 



Dry 

 matter 





Herba 



ge~ 





Horizon 







N:S 



S 



sequence 



S 



height 



vield - 



S 



N 



ratio 



uptake 









-g/pot- 



Harvest 1 



V 







-mg/pot- 





ppm 



— cm" - "- - " 









A/ sand 







94 



7.78 



0.135 



2.98 



22 



10.5 



A/ sand 



20 



91 



7.98 



0.147 



3.07 



21 



11.6 



A/C 







92 



7.52 



0.145 



3.01 



21 



10.9 



A/C 



20 



88 



7.04 

 Harvest 2 



0.140 



3.21 



23 



9.9 



A/ sand 







60 



3.46 



0.102 



2.76 



27 



3.5 



A/sand 



20 



79** 



6.31** 



0.307** 



3.34** 



11** 



19.4** 



A/C 







67 



4.87 



0.095 



2.48 



26 



4.6 



A/C 



20 



76** 



6.95** 

 Harvest 3 



0.287** 



3.19** 



11** 



19.9** 



A/sand 







49 



2.78 



0.080 



2.97 



37 



2.2 



A/ sand 



20 



81** 



13.77** 



0.137** 



1.92** 



14** 



18.9** 



A/C 







46 



4.09 



0.080 



3.24 



41 



3.2 



A/C 



20 



80** 



11.68** 

 Harvest 4 



0.150** 



2.14** 



14** 



17.4** 



A/sand 







49 



1.85 



— 



— 



— 



— 



A/sand 



20 



82** 



9.04** 



— 



— 



— 



— 



A/C 







40 



1.86 



— 



— 



— 



— 



A/C 



20 



75** 



8.98** 



— 



— 



— 



— 



t 

 All values are the means of four replications. 



' Significantly different between S treatments at the 0105 and 0.01 

 levels, respectively. 



