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Old 02-20-2009, 03:10 PM
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greensand and rock dust: important?

Greensand and rock dust both have many trace elements, lots of K for greensand (as seaweed or kelp, hence the green color from the ocean/sea). Worms and micro-organisms eat and break down the rock dust and greensand (along with the meals and manures), making the elements available for the plant. Use best in an organically amended soil mix. Greensand has good water retaining characteristics. They don't burn plants but there still is a dosage.

Greensand and rock dust links:
http://ezinearticles.com/?The-Natura...and&id=1459231

http://www.ubcbotanicalgarden.org/fo...ad.php?t=46488

General rock dust discussion:
http://forums.gardenweb.com/forums/l...495429938.html

Rockdust: which one?
http://forums.gardenweb.com/forums/l...151931113.html

Greensand dosage and release rates:
http://forums.gardenweb.com/forums/l...052537355.html
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Last edited by Corto Malteze; 02-20-2009 at 04:06 PM.
 
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Old 02-20-2009, 05:18 PM
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Join Date: Feb 2009
Location: PNW
Posts: 241
Re: greensand and rock dust: important?

For people living in the US, a rock dust product that has been branded 'Azomite' is available from a number of companies.

The Azomite is a trademark for rock dust mined in Utah. It's then sold to companies who pack soil amendments and are required to continue to use the Azomite name specifically on their product.

It's inexpensive and you can find sources at Remineralize.org

HTH

LD
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"The answer is never the answer. What's really interesting is the mystery. If you seek the mystery instead of the answer, you'll always be seeking. I've never seen anybody really find the answer -- they think they have, so they stop thinking.

But the job is to seek mystery, evoke mystery, plant a garden in which strange plants grow and mysteries bloom. The need for mystery is greater than the need for an answer."
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Old 02-26-2009, 04:29 AM
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Re: greensand and rock dust: important?

Quote:
Originally Posted by OshGoshKaBosh View Post
Speaking of rock dust and greensand, anyone ever use Langbeneite or SulPoMag? I bought a pack and I haven't used it yet. Next run I will use peat moss, coco, EWC, blood meal, bone meal, perlite, and a little Langbeneite. I really want the Mag part of the equation. The sulphur may be interesting with outdoor grows since it is supposed to help make MJ more resistant to cold. Anyone have any thoughts?
OshGoshKaBosh

The SulPoMag (0-0-22) is available at the feed/farm store. It runs $27.00 per 50 lbs. but it's not an organic amendment as far as I know.

There are organic 'K' amendments but this product is not one of those unless you know of a different source.

HTH

LumperDawgz
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But the job is to seek mystery, evoke mystery, plant a garden in which strange plants grow and mysteries bloom. The need for mystery is greater than the need for an answer."
- Ken Kesey
 
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