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Old February 22, 2012   #9
dice
Tomatovillian™
 
Join Date: Jan 2007
Location: PNW
Posts: 4,743
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Some research on use of rice hulls in greenhouse media (growing marigold
and salvia seedlings; 10-20% aged hulls worked best):
http://hortsci.ashspublications.org/...736.3.abstract
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