Compost | Comments |
---|---|
COMPOST: Mixing Old with New A bit of the old mix may carry spores of indigenous mycorrhiza beneficial in the new mix, but the results take so long that the benefits are doubtful. OR85-137 | 0 |
COMPOST: Sterilizing to Eliminate Virus Cymbidium compost can be heated to 180 to 190 deg.F. for thirty minutes. A71-21 | 0 |