Good questions, especially the second "why aren't we publishing mineral content of the produce, etc... to confirm that the minerals ( including trace minerals) are actually getting to the plants and not just lying in the soil in an unavailable form?"
The last worthwhile study of soil mineral content vs mineral content of crops grown, that I know of, was "Variation in Mineral Composition of Vegetables" by Bear, Toth, and Prince. The year was 1948. [this study can be found online, and is reproduced, along with comments, starting on p140 of The Ideal Soil 2014] I do not know of a single other published study comparing a broad range of soil minerals with mineral content of crops grown. is that a little strange, or what? With all of the awareness, interest, and concern about nutrition over the past 77 years since 1948, with all of the articles and studies bemoaning the loss of mineral nutrients in food and mineral depletion in the soil, not one single agronomist or nutritionist or researcher has bothered to test the soil, then test the crops grown in that soil for minerals and mineral-associated nutrients? What's with that?
A few years back I made an attempt; I put together a volunteer group who agreed to have their soils tested and send the reports to me. I would write a soil Rx, they would amend the soil to my recommendations, grow a crop, and then have the crop analyzed for minerals. Out of fifty or sixty free soil Rx's I wrote, perhaps eight people followed through. Rather disappointing, but the little data gathered was quite interesting. For example, Detroit Dark Red beets grown in mineral-amended soil measured, in comparison to USDA averages, an increase of
Those interested can read more at nutrientdenseproject.com
^ thumbs up m astera
for being the "one and only" to reply on this question.
here's the reason why we are not testing for soil fertility:
are poisoning our water, our air and our food.
"they' are bankrupting every sovereign nation with usury (interest) on debt based money called fiat currency.
'they' are destabilizing every place in the world; south America, middle east, Europe big time atm.
there is a group of individuals that comprise less than 1/10th of 1% of the global population that own and control most of the earth's resources, most of the national military, legal, academic, political, and news medias.
big pharma wants us sick so they can make more money treating us for our symptoms. healthy food, air and water are essential to good nutrition. good nutrition is essential to plant and animal health. every organic farmer reading this thread knows the #1 defense for plants against disease is proper nutrition yet no one is focusing on the fact that unless the plant nutrients are available
the plant can't access them for nutritional reasons.
there is absolutely no value to discussing plant nutrients if we do not focus on availability of these nutrients.
the only way to confirm availability of the organic soil mineral supplements is to run mineral content analysis of the produce ( bud in this thread).