Category: Culture

PLASTIC, GREEN: For Greenhouse Shading

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It can be used to reduce the light up to 65%, but it removes good plant-growing red light from the plants, and some heat rays on clear days that might otherwise be useful. A74-502 Read More

BOTTLE GROWING: Sophronitis Coccinea

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Inside a quart bottle place crocks on bottom covered with 9 pts. osmunda and 1 pt. sphagnum moss with plant in the mix; hang near top of greenhouse, shaded from sun's strongest rays, with open top;... Read More

POTASSIUM HYDROXIDE: Used to Achieve Ideal Ph Range in Water

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is a very caustic lye; it is pre-mixed in a stock solution, to be added to barrels of rain-water in Hawaii where volcanic gases have been absorbed by the rains to drive the pH down to 4, which i... Read More

POLYETHYLENE BAGS: Used for Packing Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Dry out the plants first (superficially) pack fairly tighly in polyethylene bags and place a 1/2 teaspoon to 1 tablespoon of malathion powder with each plant; tumble it about then press out the air... Read More

SEEDLINGS: Cymbidiums Planted in Flats of Sphagnum Moss

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Moss is dead, obtained from Wisconsin, comes in bales of five cu.ft. and bought at florists' supply center; soak it in water, roll into bundles, place in flats, flatten with concrete block so it is... Read More

PLASTIC BAG TREATMENT: For Ailing Pseudobulbs and Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Place them in plastic bags in a moist place away from the sun or bright light; when the new roots or shoots with roots appear in a few weeks or a few months they can be potted up. ODA76-36 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

MANURES: As Fertilizers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Chicken and other animal manures contain organic materials which can accumulate in the potting medium to reduce its aeration; the major nutrients are present and most of the micronutrients. P68(3)-... Read More

POTASSIUM: Functions

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is thought to be related to cell organism, cell permeability and state of hydration;it is possibly vital to the plant's general health. AU75-45 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