[rjmoses]

One or two tons on that low a PH will not make any significant difference. Without knowing your soil type, I would think about 4 tons would be a good start, if you incorporate it. And, its going to take a while for any lime to have an effect--probably two years.

Liming is a long term process. If you're top-dressing, you might lime two tons each for two years, wait a year, then do a soil test (the fourth year) to see where you're at.

Hope this helps.

Ralph