Just a thought that occurred to me. Fish emulsions, oyster shells, and various forms of seaweed are all popular organicgardening additives. As much as many people avoid bringing in outside sources of nutrients to their properties, I think these being carried onshore by animals (which we count as) is just the natural cycle that recovers soil nutrients that have been washed to sea. This doesn't address the issue of contamination, I know. But I think by looking at it as part of a larger system, there are times when it is a permaculturally sound action to import materials.
posted 11 months ago
Humanity is systematically accelerating the flux of mineral nutrients from land to ocean.
So crab meal and and other marine byproducts onto agricultural land are a tiny step against the main flows.
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