Category: Culture

FLUORESCENT LIGHTS: Optimum Amount for Seedlings in Flasks

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 40 watt per square foot at twelve inches distance is abundantly adequate. A74-969 Read More

FLUORESCENT LIGHTS: Preferred Types to Use for Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Gro-Lux is not strong enough; try wide-spectrum Gro-Lux; or, use regular fluorescent or V.H.0. type fluorescents; supplement with 25% incandescent, i.e. 50, 75 or 100 watts. A71-1021 Read More

FLUORESCENT LIGHTS: Selection

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A guide to much data on spectral distribution; alternate arrangements of lamp combinations; comparison of 40-watt whites; comparison of five horticultural lamps with cool-whites; comparison of 50 l... Read More

FLUORESCENT LIGHTS: To Produce Excellent Color in Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For display, the odd combination of one standard (not wide-spectrum) Gro-Lux tube #F40/GRO, with one Cool White Deluxe tube #F40/CWX (not the standard Cool White tube); under them white is pure whi... Read More

FLUORESCENT LIGHTS: Turning on in Living Room Area Where Plants Also Grow

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Probably no photoperiod effect; fluorescents are not very effective for photoperiod control; the 15 to 30 fc. emitted at a distance would not affect Den. phalaenopsis. A73-888 Read More

FLUORESCENT LIGHTS: Two-tube 48" Fixture

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Gives inadequate (600-800 fc.) lighting two to three inches from plants; a four-tube 48" gives 800-1,000 fc. four to six inches away. A78-226; eight tubes for 16 square ft. recommended, with a 60-w... Read More

FLUORESCENT LIGHTS: Types Available

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A review of kinds of tubes: Cool White; Daylight; Warm White; Gro-Lux; Vita-Lite; Verilux; High Output; Super High Output; High Intensity Discharge; refer to A75-292+ Read More

FLUORESCENT LIGHTS: Why Not Place Vertically?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They will operate that way but the leaves' cells display more chlorophyll on the upper surface, and derive more stimulus. A74-300 Read More

FLUORINE: In Water Supply

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It will not harm orchids. A74-502 Read More

FERTILIZERS: 30-10-10 with Soil Acidifiers and Chelated Iron

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A suitable fertilizer, use 1/2 tpg. at every watering but let 10% of the liquid run out of the pot for leaching action. A74-114 Read More