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Green-manure water fern - azolla filaculoides ??

Joel Bercardin

pollinator

Posts: 675

Location: Western Canadian mtn valley, zone 6b, 750mm (30") precip

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posted 4 years ago

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Anybody here either looking into or already have experience with "azolla filaculoides" — the green-manure water fern that has been used in rice paddies for a 1000 years? I’m uploading a link to an article that’s intriguing but not informative enough for a dedicated gardener or homesteader.

The plant with its symbiotic blue-green cyanobacteria sequesters carbon dioxide & fixes nitrogen. I live in a coldish-winter region. And, I don’t have enough info to plan to do anything yet, but I wonder if this could be cultivated in a northern-temperate-zone pond, harvested & worked into soil during warm & hot months, and re-seeded into the pond in spring once the days become warmer again.

Water-Fern green manure

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Anne Miller

steward

Posts: 17420

Location: USDA Zone 8a

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posted 4 years ago

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While I don't have any experience with azolla it sounds like a good aquatic plant with many uses.

These threads might be of interest:

https://permies.com/t/126327/Pond-bio-matter

https://permies.com/t/137182/obtain-large-amounts-organic-matter#1075977

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