Category: Culture

POTASH: To Induce Flowering

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In July increase potash; difficulty in flowering can be corrected by applying potash. OR76-344; an old-fashioned idea, it works only for potash-deficient plants. OWD Read More

POTASSIUM: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It enhances the ability to resist disease and cold temperatures as far down as 25 deg.F.; potash causes carbon and oxygen to form C02 from which plant sugars are formed; pH of 6 is the lowest advis... Read More

LIME: Application to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A common mineral deficiency is calcium which is usually lacking in commercial fertilizers; it is sometimes supplied by means of limestone or dolomite, whose usual alkalinity is partially offset in ... Read More

DAY LENGTH: Increased by Artificial Light

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cattleyas may not flower with too much light, under lights and with kitchen lights on full. A86-1031Fall flowering cattleyas most respond to light; increase the day length by turning on lights for ... Read More

TEMPERATURE: Recommended for Winter in the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cool: December -- Night 50 and Day 55; Intermediate: Dec. -- 58 and day, 58 to 65; Warm: Dec. 68 and Day 68 to 73; with a slight difference in January Cool: Night 50 and Day 55; Intermediate 59 to ... Read More

POTASSIUM: Function in Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It builds desease-resistance, improves plant and flower color and production and acts as a stabilizer to growth. A70-139 Read More

POTASSIUM: Properties

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is used by plants in relatively large quantity; can become unavailable in some soils; its common reaction is to cling to soil particles in readily available but not readily leachable form; tends... Read More

CLAY, CALCINED: Haydite

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 Read More

CLAY, EXPANDED: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is excellent for Cattleya labiata but requires constant watering and periodical chemical fertilization. OD87-147 Read More

CARBON DIOXIDE: Ethanol and Methanol Alcohol Burning to Heighten Carbon Dioxide Content of Air

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Satisfactory if burned in greenhouse in small amounts; alcohol flame is invisible by day and dangerous. A69-242 Read More