Lime only works properly IN the soil where it's sitting there preventing the acidity in the peat from becoming the dominant factor in soil pH, and feeding calcium to the plants, UNTIL IT IS USED UP. This happens in 4-8 weeks from first wetting, depending on a lot of factors. It is also a weak base, not a strong base, and you need a LOT more to neutralize acid.
pH up is a strong base, that dissociates into the metal ion (sodium, potassium, whatever you are using) plus a free -OH that can combine with the hydronium ions that are your functional acid in the solution, and neutralize them, because H+ + OH- => H2O.
So you use lime to stabilize soil pH preventatively, and pH up to change it when you observe a problem.

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"Careful what you carry- 'cause the Man is wise- you are still an outlaw in their eyes" -Steely Dan
"Multiple pieces of anecdotal evidence do not equal scientific fact." -Rhizome
"If the Queen Bee ain't happy... the hive isn't happy!"-Dutch Pimp
http://boards.cannabis.com/basic-gro...e-harvest.html<-It's a grow guide! Enjoy!
http://boards.cannabis.com/plant-pro...hy-how-do.html <- all the boring stuff about soil chemistry you never wanted to know
http://boards.cannabis.com/grow-log/...ml#post1837597 <-how to make canna caramels
http://boards.cannabis.com/grow-log/...ml#post1820481 <-illustrated cloning guide permalink
Contacting Her Dankness: stinkyattic at hushm4il-please use the same discretion you do on the boards, thanks.
I don't claim to know the first thing about growing anything; hell, I can't make a Chia pet sprout.