Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Actually a sophisticated tabulation and arrangement of about 25 ingredients of mixes arranged in three categories and from the least-absorbent to the most so; and then keyed to recipes deemed suita...
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POTTING: Faults
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
The usual ones are: repotting at the wrong time; over-potting; faulty placement in the pot; neglected potting; unnecessary potting; for a review see AH50+
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LIME: Oyster Shell, Its Characteristics
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
It is calcium carbonate lime; ground up shells comes in coarse type for chicken scratch or flour type used by many orchid growers. C74-51
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HEATING: Infra-red Heat
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
In greenhouses it promotes vigor in leaves and roots and flowers at an economical cost; the units use propane/butane, or natural gas; for details refer to A85-222
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HEATING: Infra-red Heat Lamps
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Are suitable, providing there are no emissions of light in the 600 to 700 Mu range; the true infra-red range will not affect photoperiodicity of the plants. A74-433
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HEATING: Kerosene Heaters
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
They are safe if vented to the exterior; if there are few flowers to be injured they may be used unvented if adjusted to burn properly. A74-969
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HEATING: Kerosene Stove
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Use it only in an emergency; adjust it to a smokeless flame. A78-226
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HEATING: Lp Gas Heater
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Unvented it causes yellowing of the leaves and bud drop; it produces ethylene gas; not recommended. A70-345
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HEATING: Oil Stove
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Satisfactory if vented to the outside; adjust the flame to burn blue to yellow with no smoke, A71-715
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XEROPHITIC ORCHIDS: Some Examples
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
The genera include Angraecopsis, Cyrtorchis, Jumellea, Microcoelia, Rangaeris, Tridactyle and Ypsilopsis; plus Oncidium onusturn and Epidendrum boothianum. A80-1140
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