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fortyonenorth · June 19, 2012

This article suggests 10 tons (tonnes?) per HA in combination with additions of organic matter: http://www.flyash.info/2003/28mit.pdf

It's a good source of many nutrients, especially potassium, but there are potential hazards as well, insofar as containing heavy metals. If you have easy access to cheap FA, it may be worth investigating.

June 19, 2012	#2
fortyonenorth Tomatovillian™ Join Date: Jan 2010 Location: NW Indiana Posts: 1,150	This article suggests 10 tons (tonnes?) per HA in combination with additions of organic matter: http://www.flyash.info/2003/28mit.pdf It's a good source of many nutrients, especially potassium, but there are potential hazards as well, insofar as containing heavy metals. If you have easy access to cheap FA, it may be worth investigating.