Hello Friends, I am new to Permaculture and this kind of discussion format, so bear with me! I am about to claim a few truckloads of composted Eurasian Milfoil which has been extracted from some surrounding lakes. Does anyone know if this is a Dynamic Accumulator?
I believe that most aquatic plants take a large portion of their nutrition from the water they're growing in.
the term "dynamic accumulator" as I use it refers to a plant that concentrates one or more chemical elements from topsoil and subsoil in its tissue and then enriches topsoil with that mineral upon decay.
while water milfoil might not meet that definition, I'll bet it would be good for your dirt, supposing that the lakes it was removed from were relatively free of contamination.
Location: Foothills north of L.A., zone 9ish mediterranean
posted 9 years ago
Seaweeds are unparalleled accumulators, but they live in the mother of all primordial soups. Algae such as klamath lake blue-green have great mineral profiles as well. Dunno about the milfoil, but regardless should be worthwhile as a compost.
posted 9 years ago
I looked up this term because I'm new to this & did not know what it meant or why it mattered. So for anyone else who is wondering here is what is on Wikipedia, I did not see mention of Eurasian Milfoil on that page :
Dynamic accumulators are plants that mine nutrients from the soil through their roots. These plants can then be used as a fertiliser, or as part of a fertiliser mix, for other plants that may be deficient in those particular nutrients. They play an important role in many permaculture guilds.
Here is a list of plants that work as dynamic accumulators:
Microbiologist Kristine Nicholas showed that native grasses like switchgrass, blue gama, bluestem, Indian grass not only send down deep roots but increase glomalin levels and arbuscular mycorrhizal fungi that help "glue" the soil together, make it coherent, and most importantly, shuttle biologically available nutrients from soil to plant. Some land reclamation companies are now using arbuscular mycorrhizal fungi and triticale to accomplish a similar end, and most likely Orchard grass (especially in combination with chicory and clover), and yacon, Jerusalem artichoke, chicory and many other plants will also eventually be shown to increase glomalin. Whatever that mysterious quality of "fertile" and "fertility" turns out to be in the soil, it must have something to do with these processes.
It seems that you can hardly do better than plant lots of chicory and stinging nettle. These are very tolerant of other plants, stable, persistent but not invasive, and seem to bring out the best of whatever they are planted next to.
Great and usefull list, I have carrot leaves or the wild version of carrot, lemon balm, chicory, clovers and stawberry leaves, mint so I don't need to buy anything only to take what i have and plant it round my appletrees.
Ferns also also on your list can accumulate bad things as well as good so accumulators maybe as prejudical as they are can be beneficial if you have bad thigsg in your soil unless you harvest them and take them away to a chemical clean up site. Fern accumulates something bad, i shall have to look up the thread on daffodils to find out what and then i shall say exactly what, I think if was arsenic, so if there is anything in the soil that is bad for us, if we use them as mulch they may accumulate something we dont want in our food in our topsoil, their roots carrying it up to their leaves which, when the plant dies leave it on the surface of the ground in the dead and ecomposig leaf to be incorporated inot the soil. The plants that accumulate poisonous things, lead, mercury, arsenic, radiation, are usefull to get rid of these poisons if we harvest the accumulators the fern say and take them to a place that deals with chemical waste but if we use them as mulch, as i said, they just leave poisons on top of the soil.
They have information on lead poisoning in a documentary on CNN recently and what they said is that you might have lead precipitating out of the sky and leaving your soil full of lead if you live near a smelting works. Mining can also fill the soil full of bad things, does not cleaning gold include the use of mercury?
I read that tamarisk trees tolerate salt, they have glands that sweat salt out of the plant. Tamarisk branches can get white with salt. My conclusion was that it was a usefull tree for lands that had salted up but I have just read that it salts up land because it has very long roots and brings up the salt from far underground and deposits it on the surface when rains wash the salt off its branches. So it creates salty topsoil. agri rose macaskie.
posted 9 years ago
I'm glad you found it useful.
Yes I would like to hear more about plants that carry poisons that they accumulate from the soil. D
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