Doesn't take quite as much. Maybe roughly 40-45% less, but if you buy it by the bag....well, its darn expensive. If you bought it by the ton, its still expensive, but might be worth it just for the ease of spreading it. Basically pelletized lime spreads just like fert. Ag line takes a drop spreader or a special broadcaster to spread it.
I haven't priced it much lately, so I can't give you exact figures.
[Edited on 12-5-2009 by HabitatMD]