38 



Fable 5. The use of selected sulfur-containing fertilizers in 

 Florida (from Fertilizer Statistic Division, 1945- 

 1979 and Beaton et al. , 1974). 





Fertilizer 







Year 







material 



1945 



1950 



1960 



1970 



1979 



-metric tons- 



Ammonium sulfate & 1,263 1,149 9,137 4,265 6,506 

 ammonium nitrate 

 sulfate 



Ordinary superphos- 12,600 15,676 9,137 4,265 6,506 

 Dhate 



Sulfate of potash 



217 



260 



596 



289 



381 



Sulfate of potash 



227 



141 



1,026 



12,090 



9,745 



magnesia 













Elemental sulfur 











437 



366 



6,404 



Calcium sulfate 



904 



675 



3,345 



1,692 



23,573 



(gypsum) 



Mixed fertilizers 643,682 712,843 1,255,669 1,292,691 1,730,406 



Total fertilizers 1,914,400 



used on farms 



Total S as a 32.5% 19.0% 9.2% 7.2% 



percent of (1973) 



N+P 9 +K_CH-St 



N:S ratio in 0.5 1.3 3.8 4.9 



fertilizert (1973) 



P o r :S ratio in 0.9 1.4 2.5 3.5 



2 5 



fertilizert 



(1973) 



x Data for south Atlantic states (Florida, Georgia, North Carolina, 

 South Carolina, and Virginia). 



