Can anyone recommend a silicon soil additive available in the US? - Page 4 - Indoor Grows - Soil - International Cannagraphic Magazine Forums

kylekaz363 · 11-17-2017, 04:57 AM

Montana Grows offers an organic silica product derived from volcanic tuff. I think it makes a nice soil amendment. it is also available in different grades as well.

https://shop.montanagrow.com/

benzo · 11-17-2017, 05:32 AM

would it be okay to use rice hulls in an organic soil bed, than add D.Earth later on?

DocTim420 · 11-17-2017, 03:40 PM

Do both--one is different than the other. I tried rice hulls once, and was not too happy--they got mushy (reducing grow medium aeration) and some of the slower decomposing rice hulls generated a rancid-type aroma.

If I had my choice, I would use "rice hull ash". But since it is not affordable (cheaper alternatives are available)...I continue to source my Silica from foodgrade DE (fossil shell flour), Greensand and of course an occasional shot of Potassium Silica (which is not approved by OMRI/Organic Fanatics for plant nutrition).

MJPassion · 11-17-2017, 05:41 PM

I had a similar experience using Wheat hulls. They also acidified my soil from an 8pH to about 5pH is a couple of weeks. But... This acidification could have been caused by the breakdown of the flour that the hulls came in. I'm still not sure.

11-17-2017, 04:57 AM	#31
kylekaz363 Newbie Join Date: Mar 2009 Posts: 5	Montana Grows offers an organic silica product derived from volcanic tuff. I think it makes a nice soil amendment. it is also available in different grades as well. https://shop.montanagrow.com/
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11-17-2017, 05:32 AM	#32
benzo Senior Member Join Date: Mar 2010 Location: Skateboarding everywhere Posts: 1,050	would it be okay to use rice hulls in an organic soil bed, than add D.Earth later on? __________________ ROUND 3:DJshortsBlueberry in coco w/Blumats COMPLETED!!
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11-17-2017, 03:40 PM	#33
DocTim420 The Doctor is OUT and has moved on... Join Date: Oct 2016 Posts: 1,192	Do both--one is different than the other. I tried rice hulls once, and was not too happy--they got mushy (reducing grow medium aeration) and some of the slower decomposing rice hulls generated a rancid-type aroma. If I had my choice, I would use "rice hull ash". But since it is not affordable (cheaper alternatives are available)...I continue to source my Silica from foodgrade DE (fossil shell flour), Greensand and of course an occasional shot of Potassium Silica (which is not approved by OMRI/Organic Fanatics for plant nutrition).
	Quote 2 members found this post helpful.

11-17-2017, 05:41 PM	#34
MJPassion Observer Join Date: Dec 2012 Location: uni-verse Posts: 5,584	I had a similar experience using Wheat hulls. They also acidified my soil from an 8pH to about 5pH is a couple of weeks. But... This acidification could have been caused by the breakdown of the flour that the hulls came in. I'm still not sure.
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