Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
The system is not new; it makes use of such media as scoria, volcanic cinders, pumice, rock wool, manufactured resins (such as Oasis) and other media; they need no replacement and can be re-used af...
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HYDROPONICS: Trials
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A Laelia pumila was repotted into round pebbles and placed in a hydroponic set-up where it showed astonishing improvement; a complete unit was set up with two fertilizer solutions, one for spring t...
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HYDROPONICS: Use of Glass Netting
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A description of a new method whereby fibres with capillary spaces raise the water with nutrients from the tray to the plant roots in a continuous, constant and sufficient method; a patented system...
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INSULATION: Greenhouses
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A double layer of film like a flat balloon which can be inflated a few inches and which covers the whole greenhouse provides an excellent insulation layer. A85-1119More than two layers of materials...
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INSULATION: Greenhouses, with Plastics
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
New products include double-skinned plastic sheets called Plexiglass, Qualtex, Pillo-Sol; for data refer to OR81-185.
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IRON: Deficiency
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
In mi Itonlopsis it shows up as either blotchy leaves or as leaf tips faded from loss of green pigment; use a half dose of Sequestrol one day after heavy watering. OIE85My-3
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IRON: In Fertilizer Programs
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Chelated iron should be used instead of normal iron siulphate at a rate of 8 to lOppm. AU84-199
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IRON: Stains
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Red-brown iron stains can be kept off the leaves only by keeping the water carrying the iron from dripping there. A86-42
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IRON: In the Water Supply
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Watering directly into the pot will cause little harm to the plants; on the leaves the iron precipitates out and colors them coppery,- eventually to reduce the light intake of the leaf and weaken t...
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IRON: Odontoglossums Need it
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Chelate of Iron should be supplied to the plants strictly according to the instructions on the label; add 5ml of GU49 (powdered iron) to the slow re lease fertilizers (30ml Osmocote, nine months re...
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