Liquid lime works almost instantaneously but is short term unless sprayed every 30-60 days or is used on the plant after it is grown.
Pelletized lime works fast but is a shorter term, usually less than one year in lite soils.
Powdered/ag lime works longer, usually 2-4 years depending on soil type and moisture... However, it take sometimes up to a year to do it' s thing. Ideally you would want to use the powdered lime and then spray with liquid lime for a quicker working project.