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| Clay, Calcined | Comments |
|---|---|
| CLAY, CALCINED: As Cymbidium Medium It is not as good as bark mixes, judging from an experimental growth trial of three years; for details refer to OA84-79 | 0 |
| CLAY, CALCINED: As Cymbidium Mix An aggregate used in making masonry blocks, it is good for culture in pots up to six inches; is alkaline in reaction; mix with bark for larger pots. OA82-6 | 0 |
| CLAY, CALCINED: Expanded Nodules Most epiphytic orchids grow well in it; use 1-1-1 balanced fertilizer; it holds water and is aereated for good root growth; do not let it dry out; trade names are Crestlite, Haydite, Herculite, Turface. A83-698; RMH | 0 |
| CLAY, CALCINED: Expanded Shale or Clay Aggregate material fired under great heat is like volcanic rock, porous, well-aerated but they differ in types; for a current valuation refer to A86-495 | 0 |
| CLAY, CALCINED: Haydite As a potting medium for angraecums, the seedlings can be started in it and grown on into a ten-inch pot in about five years and they flower well. Ca84Spring-3 | 0 |