I came across a great read while searching for information on amending my garden soil. Thought some of you might find the article Remineralizing The Earth by Dr,. Tso-Cheng Chang The Amazing Tales of a Farmer, From Farm to Table.
Success to all and Happy Gardening!
I'm amazed that in New England, where rocks proliferate like native wildflowers, adding rock dust to the soil would make any noticeable change. I don't live all that far from Amherst, however, so I'm going to try it.
the weight of the rock in the soil is unimportant in comparison to its surface area, to be covered with water, and rooted, then the root dissolves the desired minerals with acid exuded from the root then reabsorbed. dust thereby has the best chances of being absorbed by the plant in comparison a single large rock would be blocking soil and root space, blocking water infiltration, and less than .1% of its minerals available, and when the sun hits it the majority of radiation is conducted into the soil, baking roots that desire rotting biological material for mulch that is water retentive and cool.