Category: Culture

FLUORESCENT LIGHTS: Ballasts

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Higher priced fixtures have ballasts which are rated at .85 amps, the cheaper ones are rated at .675 amps, or 30% less light, regardless of the type of bulb used, so take a good look before you buy... Read More

FLUORESCENT LIGHTS: Best Height Above Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Two inches; prop up the small plants. A70-427; A75-298 Read More

FLUORESCENT LIGHTS: Types Used

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago One grower uses half Gro-Lux Wide Spectrum and half Vitalite Power Twist. OIE85Jan-13 Read More

FLUORESCENT LIGHTS: Wattage Per Square Foot

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Tubes 12 inches above the leaves provided 20 watts, barely enough to satisfy phalaenopsis; six tubes arranged in a dome shape supplied 30 watts; a VHO-fixture having the intensity of three normal t... Read More

FOLIAR FEEDING: Through Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Foliar applications of nutrients can cause salt build-up on leaf surfaces; this supports algae growth; wash off the salt. F79-117 Read More

AIR SPACE: For Insulation

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Ideally, the air space between two covers should be approximately one and a half inches thick; spaces of three-quarters to eight inches are used; below three-quarters inch the effectiveness is rapi... Read More

HORMONES: To Produce Small Numbers of Mericlones of Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Hormonal preparations involving application of a cytokenin, which acts as a cell-divider; a commercial paste is sold as Keikigrow; refer to A80-1123 Read More

HYDROPONICS: Growing Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Granite chips and polystyrene used as media; nitrates of potash, phosphorous, calcium and magnesium used in solution; plants in pots stand in troughs of nutrient solution; refer to OR70-353Porous r... Read More

MONOPOTASSIUM PHOSPHATE: As Fertilizer on Paphiopedilums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Two feeds of it at 5ml. per gal. water will restore hardness to leaves if a 30-10-10 fertilizer has been used, causing softening, instead of the preferred 20-20-20. OR77-264 Read More

HEATERS: Emergency System

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If the emergency heater fails to operate the last hope is to use water as a continual spray over the plants to avoid freezing and to achieve at least survival of the plants; use a follow-up of fung... Read More