It gets fairly scientific pretty quickly, but pulverized has the greatest longevity and is many, many times cheaper. Pelletized is certainly easier with less mess, but fades almost yearly; noted from the times we've tested Ph. Soil contact by harrowing would be the preferred method for integration into the soil, which is absolutely necessary. Spreading it on top of the ground would be a waste of cash. From what I have studied, it normally takes 18 months to 2 years to maximize the intended affect on the soil. I'm only curious about the attraction, since we've never limed "perfectly" as we have this year. I will report back after this season and the next, Lord willing. For the time of the year, it's always about getting the lime in whenever you can and as soon as you can. I am highly curious about this and it should be fun to watch.