The Orchid Doctor Articles under the Heading Bark, Fir

Bark, Fir Comments
BARK, FIR: Characteristics It is the most-used potting media in the U.S description, advantages, peculiarities, statistics of usage; refer to A86-492Osmunda retains 110 to 140 times more nutrients than bark; after one flushing there is no ammonium, phosphate, or potash in bark; salts do not accumulate; recommended is a formulation of 50-10-10 weekly instead of 30-10-10. OD79-106 0
BARK, FIR: Sterilization It can be steam sterilized but that will hydrolize complex carbon compounds and increase its decay; no serious diseases or insects are introduced by it. A66-55 0

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