Comments pH testing of soil with application of rock powder. I have been planning to respond to this query for some time, but it took a while as I had to dig up some old references.
Most studies deal with base ion releases due to mineral solubilization.
Most pH monitoring studies are carried out under laboratory conditions, which are not very helpful when trying to extrapolate to the field. The influence of rock powders on microbial activity of three forest soils. The dry weight of the soils ranged from 90 to 56 tons per ha per cm in the less than 2 mm fraction, in case you wish to calculate the application rate. Laboratory incubation studies. Application rates not specified.