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Caligula | 12-21-2008 09:37 PM
Rock Dust Rock Dust Grows Extra-Big Vegetables (and Might Save Us from Global Warming) by Paul Kelbie, Scotland Correspondent http://www.commondreams.org/headlines05/0321-02.htm For years scientists have been warning of an apocalyptic future facing the world. With the prospect of an earth made infertile from over-production and mass reliance on chemicals, coupled with an atmosphere polluted by greenhouse gases there seems little to celebrate. But belief is growing that an answer to some of the earth's problems are not only at hand, but under our feet. Specialists have just met in Perth to discuss the secrets of rock dust, a quarrying by-product that is at the heart of government-sponsored scientific trials and which, it is claimed, could revitalise barren soil and reverse climate change. The recognition of the healing powers of rock dust comes after a 20-year campaign by two former schoolteachers, Cameron and Moira Thomson. They have been battling to prove that rock dust can replace the minerals that have been lost to the earth over the past 10,000 years and, as a result, rejuvenate the land and halt climate change. To prove their point, the couple have converted six acres of open, infertile land in the Grampian foothills near Pitlochry into a modern Eden. Using little more than rock dust mixed with compost, they have created rich, deep soils capable of producing cabbages the size of footballs, onions bigger than coconuts and gooseberries as big as plums. "This is a simple answer which doesn't involve drastic life changes by anyone," Ms Thomson said. "People don't have to stop driving cars to do this, just spread some rock dust on their gardens. We could cover the earth with rock dust and start to absorb carbon in a more natural fashion which, along with reducing emissions and using a combination of other initiatives, will have a better and faster response." Before the Thomsons began their "good life" experiment, erosion and leaching were so severe in the glen where they set up home that nothing had been grown there for almost 50 years. The basis of their theory is simple. By spreading a thin layer of the dust over the land, they are able to mimic the earth's glacial cycles which naturally fertilise the land. Since the last ice age three million years ago, the earth has gone through 25 similar glaciations, each lasting about 90,000 years. "We are 10,000 years into an interglacial - a hiatus between ice ages - meaning modern soils are relatively barren and artificial fertilisers are needed," Mr Thomson said. "By spreading the dust we are doing in minutes what the earth takes thousands of years to do - putting essential minerals in the rocks back into the earth." Over the years the couple, who established the Sustainable Ecological Earth Regeneration (Seer) Centre charitable trust in 1997 to test their ideas, have slowly convinced others of their theory. They recently won a grant of almost �100,000 from the Scottish Executive to conduct Britain's first official rock dust trials. The couple claim the technique may also play a significant role in the fight against climate change as calcium and magnesium in the dust converts carbon in the air into carbonates. Such is the interest in the theory that Nasa in the US is examining it in preparation for growing plants on other planets. The couple say that the rock dust means that crops don't need water to produce harvests of magnificent vegetables. "It would be perfect for Third World countries that are usually unable to grow crops because the land is so dry," Ms Thomson said. "This could hold the solution for them." "There is no doubt that, when rock dust is mixed with compost, it has a dramatic effect on crop yields," said Alistair Lamont, president of the Chartered Institution of Waste Management, who is impressed by the Seer experiment. "Future waste strategy is going to rely heavily on the diversion of biodegradable municipal waste from landfill, and one of the treatments involved is composting so we need to find a home for that compost. "Agricultural land is something we need to work on and the benefits of rock dust in combination with compost can be seen at the Seer Centre at harvest time. We need to get farming to take on board the value of remineralisation and re-fertilisation. Mr Lamont added that evidence showed that, since 1940, the mineral content of vegetables had fallen dramatically in this country. "We might be encouraged to eat a lot of vegetables but many don't contain the quantities of minerals that we need," he said. MORE: http://remineralize.org/joomla/ http://invisiblegardener.com/magazin.../rock_dust.htm http://www.guardian.co.uk/uk/2008/de...transform-soil

scholarcoon | 12-21-2008 10:04 PM
Re: Rock Dust It's all about the soil. Your veggies from the garden won't be very nutritious if your soil's not nutritious. The importance of trace elements is overlooked even in organic farming/gardening circles. I bought some of this: Azomite just last month. I'm excited to put it on the garden next spring.

Merlin | 12-21-2008 10:07 PM
Re: Rock Dust I've been applying one tablespoon of rock dust on every square foot of my backyard garden for three years now. (I square foot garden because my space is small -- I layout a grid with string even.) Azomite is the product I'm using too. Because I haven't maintained any control group, I cannot tell you whether it has done any good or not. I figure it can't hurt. But I'm wondering whether I apply enough. I guess, over time it will probably build up. In the fullness of time, we'll see. I have to tell you though that if you're paying for shipping, rock dust is brutal!

____hoot____ | 12-21-2008 10:34 PM
Re: Rock Dust What the heck kind of Rock? There's a very wide selection.

mick silver | 12-21-2008 10:54 PM
Re: Rock Dust it lime , i get it a home depot

Lackluster | 12-22-2008 07:23 AM
Re: Rock Dust Quote:
Originally Posted by scholarcoon (Post 1477090) It's all about the soil. Your veggies from the garden won't be very nutritious if your soil's not nutritious. The importance of trace elements is overlooked even in organic farming/gardening circles.
I agree with you about the importance of micronutrients. In fact, all the nutrients are important, of course. The problem I have with rock dusts and so on, is it is a shot gun solution to a problem that needs a scalpel. One may suspect their soil is deficient in some nutrient. Which one(s)? By how much? Are there any excesses? How much and what kind of nutrients are in my rock dust? One needs a reliable soil test to figure this stuff out, or you're just shootin' in the dark. I suggest looking up 'William Albrecht' and 'Neal Kinsey', and learn something about 'base saturation theory.' This stuff has been figured out a long time ago, it just has been ignored by mainstream agronomists.

oldmansmith | 12-22-2008 09:29 AM
Re: Rock Dust Quote:
Originally Posted by mick silver (Post 1477155) it lime , i get it a home depot
Not talking about lime, lime is used to "sweeten" the soil (increase its Ph). I also use azomite. I think that organic methods will also return many minerals to the soils; however certain soils are deficient in important trace minerals. Worse, agribusiness adds only the big 3 (N-P-K) and even good soils become depleted of minerals over time using such methods. If the minerals aren't in the soil, they aren't in the vegetables and they aren't in you in sufficient quantities to prevent disease. Of course, thats probably part of the plan, you can then get drugs to "treat" something that a good diet would have prevented.

Darkside | 12-22-2008 10:07 AM
Re: Rock Dust Anyone have good suggestions for obtaining free rock dust from local supplies? The article mentions stone quarries but I don't have any in my area. I heard elsewhere mentioned tombstone engraving places and I do have those nearby but i fear the quality of the dust may be tainted by chemicals they might use in the process, perhaps oil at least to lubricate the cutter bits? I guess I could always stop by and just ask them if they use any chemicals or anything...

Tallships | 12-22-2008 12:05 PM
Re: Rock Dust Lime makes a father rich and a son poor.

Ash_Williams | 12-22-2008 01:46 PM
Re: Rock Dust I wonder if marble dust is any good. I have lots of it, it settles in the bottom of the water tub for my tile saw. It's a very fine dust.

Floyd | 12-22-2008 02:30 PM
Re: Rock Dust From what I understand all naturally formed rock\stone has some nutrient properties. The more variety of stones, brings more nutrient variety as well. I found a lot of info researching and have realized this is not rocket science but common sense. Experiment and learn and then share. Maybe use your tile saw to cut different rocks and apply this dust or slurry to a small potted experimental garden. Just a thought. :wink:

Ag_man | 12-22-2008 05:03 PM
Re: Rock Dust I would think that igneous and metamorphic rock types (basalts, granites and schists) would make the best rock dust, as they contain wide amounts of trace elements, as opposed to sedimentary rocks (limestone, shales and sandstones).

scholarcoon | 12-28-2008 02:28 PM
Re: Rock Dust Quote:
Originally Posted by Lackluster (Post 1477447) I agree with you about the importance of micronutrients. In fact, all the nutrients are important, of course. The problem I have with rock dusts and so on, is it is a shot gun solution to a problem that needs a scalpel. One may suspect their soil is deficient in some nutrient. Which one(s)? By how much? Are there any excesses? How much and what kind of nutrients are in my rock dust? One needs a reliable soil test to figure this stuff out, or you're just shootin' in the dark. I suggest looking up 'William Albrecht' and 'Neal Kinsey', and learn something about 'base saturation theory.' This stuff has been figured out a long time ago, it just has been ignored by mainstream agronomists.
It's funny you mention this. I've been reading the Albrecht Papers lately. Good stuff. I agree with the statement about soil amendments like Azomite being a shotgun approach. My next step is going to be getting my soil tested.

Lackluster | 12-28-2008 08:49 PM
Re: Rock Dust Quote:
Originally Posted by scholarcoon (Post 1485303) It's funny you mention this. I've been reading the Albrecht Papers lately. Good stuff. I agree with the statement about soil amendments like Azomite being a shotgun approach. My next step is going to be getting my soil tested.
Send your samples to Kinsey. They're the best.

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