Category: Culture

MARBLE CHIPS: For Compot Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago One to three mm. size of grit chips are first boiled in water for 10 minutes and then cooled; cymbidiums out of flask then can be planted into it, watered with a weak fertilizer, placed under light... Read More

POTTING MEDIA: A New But Already Long-lasting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Equal parts of charcoal, peat and styrofoam is a satisfactory mix for nearly all orchids. Wll-212 Read More

POTTING MEDIA: Absent From the Pot

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It can be done: vandaceous genera, various dendrobiums and oncidiums, in South Florida will grow in their containers without visible means of support if the owner can find the time to syringe, wate... Read More

POTTING MEDIA: Calcinated Clay Pellets

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Leaching and drying will move salts to the surface of calcinated clay; organic fertilizers do not make any difference; a nutrient solution designed to supply the plants with their nutrient requirem... Read More

ROOTS: Phalaenopsis on a Windowsill

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If roots show brown areas on the exposed ones it is because of too low humidity, A75-876 Read More

FOGGERS: Spray Cans for Insecticides

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Types such as Raid or Foregone are household types and the carrier used may injure orchids, so use only those designed for greenhouse use. A86-274 Read More

NUTRITION: Of Three Orchid Genera

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago N, P, K. and Mg.; scientific studies show cymbidiums and phalaenopsis attain optimal growth at lOOppm. of N., 50 to 100 ppm. of K., and 25ppm. of Mg. and for cattleyas the optimal at 50ppm. each of... Read More

MOISTURE MONITORING METER: Description

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Does not require outside source of electric power; has conventional method of measuring; moisture touching a bimetallic tip of the probe determines the quantity of electricity transmitted to a mete... Read More

CLAY, CALCINED: Expanded Shale or Clay

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Aggregate material fired under great heat is like volcanic rock, porous, well-aerated but they differ in types; for a current valuation refer to A86-495 Read More

WATER TREATMENT: By Reverse-osmosis Unit

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A demineralizing process; a 5-gallon unit produces over 35 gallons per week; a pre-filter in the supply line will show dirt traces in a few weeks in some supplies. A84-1120; OD87-40; OIE87Jan-ll; Read More