I'm working on a question for remineralization advocates regarding
the mineral composition of soils and how they might have changed
over time; i.e., an historical summary of elemental concentrations in
soils earlier in the century compared to more recent data. They had
this notion USDA or NRCS would have data on mineral reserves
in agricultural soils for each decade.
They pointed to data on diminishing quantities of minerals in foods
-- citing books like "Healing Power of Minerals, Special Nutrients
and Trace Elements" by Paul Bergner -- and they wonder if such data
exists for soils too.
Of course the remineralization theory says that soils are depleted
and that's one of the reasons rock dusts are beneficial because they
supply a balance of minerals, especially micronutrients.
Can ya'll think of any publications or articles that address mineral
composition of soils from a historical perspective?
Thanks, I'll pass it along.
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