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AMMONIA: Vapour as Fertilizer

Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 2 years ago.

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19th. C. methods; pieces of carbonate of ammonia placed near heating pipes; soot and lime mixed dry, or, ammonia in solution, twice a week, OR73-333
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