The equivalent in the ag industry is that the grind is so fine and the calcium pure that the immediate results is the pH raising capacity of that much ag lime. What they do not say is what acid neutralizing capability it has in a month, six months or a year.
It has been 20 years so memory fades but there were some similar claims for soil amendments for lime. But there was no longevity to them. The extension service did some testing on them and basically said they were very good products that cost way too much for what they did. Better to buy ag lime. That was for soil application.
Ag lime, in soil at least, breaks down over time. The finest particles do their job the quickest then the slightly larger particles keep helping the pH in acid soils over time.
We used to get a lime product that was actually a byproduct of cutting rock. It was fine like talcum powder. If you stepped off into a truck load of it you would sink up to your waist. It had a very high ECCE (effective calcium carbonate equivalent) and was a very good lime but it did not have the longevity of regular ag lime. The finer the grind and the less impurities in the limestone rock, the more effective the lime will be in changing the pH short term.
Last edited by snrub; 05/03/17 01:45 PM.
