Bryant RedHawk wrote:https://permies.com/wiki/77424/List-Bryant-RedHawk-Epic-Soil#637639
Many times I get asked (here and other places) about adding minerals to our soil for gardening.
Minerals are a fairly hot topic in my world of soil microbiology and many believe that all the minerals needed are abundant in all soils.
Recent studies shows that while this is mostly true, there are a few minerals that can only be found in the oceans.
These minerals are not found in our soil base, anywhere, this might not be such a horrible thing except for the needs of the human body, which require these minerals from plants so the body can make use of them.
These minerals have been recently discovered to be necessary for vital body functions, and the lack of them is looking to be one of the reasons for many health issues we are seeing today.
The biggest issue with minerals lacking in our food is actually caused by the use of NPK fertilizer, not geology.
Tj Jefferson wrote:
. Don't get me wrong, I use similar plants, but for deep recovery of the minerals I have applied because I don't want to do it again. Minerals are not created in situ unless you are an alchemist (nitrogen and carbon excluded).
The main hypothesis that seems logical to me is that plants are well designed to function in a large range of minerals. But to play you have to get in that range. Organic and regenerative practices cycle but don't create minerals.
Tj Jefferson wrote:Myrth : https://www.azomiteinternational.com/resources/coa.pdf
Fredy Perlman wrote:
1. Is any kind of seaweed acceptable for micronutrient accumulation?
2. Do any accumulate more, or a better balance of, minerals for garden/food forest use?
3. Do contaminants in seaweed outweigh potential benefits? The Puget Sound isn't exactly clean, but it isn't the Baltic Sea either. I'm not in a hurry to spread some persistent toxins around my land. We're careful with manure but seaweed seems a black box. Maybe a sweep with a Geiger counter is enough!
Fredy Perlman wrote: Very common sense and it has the ring of truth, from what I know. But the microplastics question remains, probably because that science is pretty nascent. And per your comment about toxins accumulating in plastics: since microplastic science is so new, I'd be surprised if anyone could say whether I am putting persistent toxins sponged up by microplastics into my beds in perpetuity...I doubt even Elaine Ingham could say how that shakes out. So I will stick to asparagus beds and tree mulching for now. Seaweed slug repellant can be tested around trees they find tasty.
Nathan Watson wrote:
It's mostly just the highly water soluble halogens such iodine that leach out of the soil. Most other elements are less water soluble and are present in soils, unless missing from the local soil for geological reasons (they were never in the rocks in the first place).
The biggest issue with minerals lacking in our food is actually caused by the use of NPK fertilizer, not geology. Only 3 elements are typically added to our crops, nitrogen, phosphorus, and potassium. The plants just take the other minerals out of the soil, year after year and these minerals are never replaced. Then the crops are harvested and the other minerals leave the soil for good. It's no surprise studies have shown organic foods higher in these other minerals.
I'm a bit intrigued by the idea of adding rare trace minerals into the soil, and a lot of good information and ideas have been brought up in this thread. However, just by choosing organic farming methods as opposed to NPK fertilizer, you're actually 95% of the way there in terms of minerals in the food you grow.
I'm also not completely convinced that adding sea minerals to soil is absolutely necessary for human health. As mammals we've been living on dry land for hundreds of millions of years and evolution has found ways for us to survive and even thrive on dry land and the foods that are found there. However these trace elements in the sea certainly may hold the potential to improve human health, especially considering the toxic, nutritionaly deprived world we live in. Great post Redhawk, thanks for sharing.
Gurkan Yeniceri wrote:
So, couple of methods to get these minerals and traces into our soil are:
Preparing liquid sea weed fertilizer using washed off seaweeds.
Preparing fish fertilizer with ocean caught fish.
Using rock dust as a fertilizer.
Using pure sea salt on soil and under trees in moderation.
Adjusting the acidity between 6.8 to 7.5 in the soil.
And may be collecting expired vitamin & mineral pills, dissolving them in water and applying them on soil in moderation.