Square Foot Gardening Forum

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.


Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics
» Garlic and Onions planting soon
by greatgranny Today at 11:35 am

» CANADIAN REGION:What are you doing in October 2016
by trolleydriver Today at 11:03 am

» CANADIAN REGION: What are you doing in September 2016
by Kelejan Today at 10:50 am

» New Table Tops
by greatgranny Today at 10:39 am

» Second Year SFG in Canada
by trolleydriver Today at 8:54 am

» SFG Adventure of a first time gardener in ND
by Robbomb116 Today at 7:55 am

» October: What to plant in Northern California and Central Valley areas
by sanderson Today at 1:46 am

» Mid-South: October 2016
by sanderson Today at 1:36 am

» Rotten Rats in my garden!
by sanderson Today at 1:26 am

» What are you eating from your garden today?
by donnainzone5 Yesterday at 8:45 pm

» Now What do I do?
by donnainzone5 Yesterday at 8:38 pm

» Northern California & Coastal Valleys - What are you doing this month?
by sanderson Yesterday at 8:12 pm

» Senseless Banter...
by llama momma Yesterday at 7:58 pm

» homemade ketchup
by llama momma Yesterday at 7:43 pm

» parsnips in square foot garden?
by Scorpio Rising Yesterday at 7:08 pm

» N&C Midwest: September 2016
by Scorpio Rising Yesterday at 6:21 pm

» Newbie composting questions
by sanderson Yesterday at 4:03 pm

» compost thermometer
by trolleydriver Yesterday at 9:23 am

» The Research Journey:free-The Gardener’s Guide TO PERFECT GARDEN SOIL
by jimmy cee Yesterday at 8:48 am

» Plantoid' s going into hospital ....
by plantoid Yesterday at 6:22 am

» Hello from San Antonio, Tx.
by sanderson Yesterday at 12:53 am

» 17 Everyday Things You've Been Doing Wrong
by has55 9/29/2016, 11:28 pm

» What's a good type of lettuce to try for some one who doesn't like lettuce?
by CapeCoddess 9/29/2016, 11:59 am

» In between
by Scorpio Rising 9/28/2016, 8:33 pm

» Tomato Mystery Mix
by sanderson 9/28/2016, 11:26 am

» Easy and Fabulous Crockpot Marinara
by trolleydriver 9/28/2016, 11:03 am

» newbeone
by Cajun Cappy 9/28/2016, 8:59 am

» The SFG Journey-Cover crops
by jimmy cee 9/27/2016, 9:45 pm

» Oh no! My hibiscus moscheutos plant has some roots exposed!
by RJARPCGP 9/27/2016, 9:37 pm

» Tryst with my first DIY SFG
by Mimi2 9/27/2016, 8:12 pm

Google

Search SFG Forum

Worms and heavy metals

View previous topic View next topic Go down

Worms and heavy metals

Post  llama momma on 11/18/2012, 2:00 pm

I was trying to find an article on worms ability to filter out nasty BPA from plastic, but so far found this instead. Very Interesting but deeply scientific stuff. My head hurt a little trying to understand.. According to this info on worms and heavy metals-- Looks like our worm friends can process a variety of bad stuff in their gut and produce uncontaminated castings. No wonder the chinese symbol for earthworm is literally translated into English as Angels Of The Earth.

http://www98.griffith.edu.au/dspace/bitstream/handle/10072/23487/55347_1.pdf?sequence=1

llama momma

Certified SFG Instructor

Female Posts : 4589
Join date : 2010-08-20
Age : 59
Location : Central Ohio zone 6a

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  Kelejan on 11/18/2012, 4:21 pm

Thanks for finding this article LLM. Aren't our little friends the best thing going? It makes me all the more want to try to produce a larger population in my garden and make my garden a wonderland.

I will be printing this for my worm library.

ETA: I am now visualising all my worms with sets of wings.


Kelejan

Female Posts : 4228
Join date : 2011-04-24
Age : 81
Location : Castlegar, British Columbia

View user profile http://www.castlegarinkspot.ca

Back to top Go down

Re: Worms and heavy metals

Post  mollyhespra on 11/18/2012, 7:24 pm

Great article, LM!

So, the way I understood it is that the worms eat the bad stuff and somehow transform the bad stuff into OK stuff that they poop out--SO, when the worm dies, there is no bad stuff left in their bodies (only whatever hasn't been digested yet) so that they aren't just returning the bad stuff to the soil again and re-depositing it after accumulating it over the course of their lifetime.

Is that how you-all understood it?

mollyhespra

Female Posts : 800
Join date : 2012-09-21
Age : 50
Location : Waaaay upstate, NH (zone 4)

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  llama momma on 11/18/2012, 8:12 pm

Kelejan - glad you enjoyed the article. I wish I understood more of the technical stuff but I got enough out of it. Yes our little angels of the earth - maybe if I describe it that way to friends maybe then they'll take a look in the bins? Shocked

MollyH - yuppers that's how I understood it. I think there was a mention of their gut converting the ions (I think) in the metals. Amazing little critters. Also read somewhere else when they die their little bodies are high in protein and water, adding back good things right to the very end.

llama momma

Certified SFG Instructor

Female Posts : 4589
Join date : 2010-08-20
Age : 59
Location : Central Ohio zone 6a

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  camprn on 11/18/2012, 8:56 pm

From what I read, regarding the heavy metal uptake by certain earth worm species, in their gut they chemically alter some of the metals into forms that plants can utilize from the casts.

I found the comments about certain bacteria and fungi propagated in the worm gut being capable of degrading chemical compounds interesting. Add more worms into the mix and the biodegrading accelerates. Fascinating.

The article speaks to the worms absorbing through the gut or skin and retaining within their bodies high amounts of metals and dioxin (toxic) without it effecting the worm physiology. However, it is silent on when the worm dies do these compounds go back to the soil, though at much lower levels than originally measured?

A great article with obvious positives for impact in cleaning up brownfields and other contaminated sites (Earth). Thanks for sharing What a Face

____________________________

40 years a gardener and going strong with SFG.
http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

http://squarefoot.creatingforum.com/t1306-other-gardening-books

Outlander is outstanding!


camprn

Forum Moderator Certified SFG Teacher

Female Posts : 13981
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: Worms and heavy metals

Post  llama momma on 11/20/2012, 4:43 pm

@llama momma wrote:.....Looks like our worm friends can process a variety of bad stuff in their gut and produce uncontaminated castings.
http://www98.griffith.edu.au/dspace/bitstream/handle/10072/23487/55347_1.pdf?sequence=1

I want to amend that statement. Yes, the castings are returned BUT with less toxicity. That is what the studies are showing. Seems logical the next worm will reduce it more. Thanks Camp for getting it right the first time.

llama momma

Certified SFG Instructor

Female Posts : 4589
Join date : 2010-08-20
Age : 59
Location : Central Ohio zone 6a

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  NHGardener on 11/20/2012, 11:07 pm

Great article, llama momma! Nature is amazing.

NHGardener

Female Posts : 2298
Join date : 2011-02-25
Age : 55
Location : Southern New Hampshire

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  llama momma on 11/21/2012, 8:45 am

Thanks!
Also want to share that I wrote to Bentley Cristie from redwormcomposting.com about BPA absorption from plastic bins. He said there is no clear answer at this time. It is not known how much BPA is released to begin with. I say maybe there are no worries.. We've already seen from the article that the worms further process the same vermicastings repeatedly and continue to reduce toxicity. I don't know about anyone else but that sounds pretty good to me.

llama momma

Certified SFG Instructor

Female Posts : 4589
Join date : 2010-08-20
Age : 59
Location : Central Ohio zone 6a

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  NHGardener on 11/21/2012, 8:47 am

Wow. Never thought about the plastic bins. More and more I'm trying to stay away from plastics, esp. after watching Bag It.

Happy almost Thanksgiving, all.

NHGardener

Female Posts : 2298
Join date : 2011-02-25
Age : 55
Location : Southern New Hampshire

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  walshevak on 11/21/2012, 11:38 am

@llama momma wrote:Thanks!
Also want to share that I wrote to Bentley Cristie from redwormcomposting.com about BPA absorption from plastic bins. He said there is no clear answer at this time. It is not known how much BPA is released to begin with. I say maybe there are no worries.. We've already seen from the article that the worms further process the same vermicastings repeatedly and continue to reduce toxicity. I don't know about anyone else but that sounds pretty good to me.

Better than most chances we can get on our compost.

Kay

____________________________

A WEED IS A FLOWER GROWING IN THE WRONG PLACE
Elizabeth City, NC
Find more about Weather in Elizabeth City, NC
Click for weather forecast

walshevak

Certified SFG Instructor

Female Posts : 4302
Join date : 2010-10-17
Age : 73
Location : wilmington, nc zone 8

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  llama momma on 11/21/2012, 6:48 pm

Agree!!
I find it interesting that Darwin long ago reading wrote about and understood the wondrous contributions of our worm friends. Worms deserve to be a common knowledge type of respect.

llama momma

Certified SFG Instructor

Female Posts : 4589
Join date : 2010-08-20
Age : 59
Location : Central Ohio zone 6a

View user profile

Back to top Go down

Re: Worms and heavy metals

Post  Sponsored content Today at 11:43 am


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum