Category: Orchid Doctor

PHOSPHATE: Properties

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It plays a complex role; forms many insoluble and slightly soluble compounds; their solubility is affected and altered by the pH of the media reaction; under conditions of slight to moderate acidit... Read More

PHOSPHORIC ACID: Salts Remover

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Add it to water to remove salts from the potting medium; water alone can do this quite well as six inches of water will leach out about 50% of the salts in the pot; in regions where the water conta... Read More

PHOSPHOROUS DEFICIENCY: It Seldom Occurs

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago But the foliage does become dark green, there is dwarf growth with no flowering; there is no tissue necrosis. A67-473+ Read More

PHOSPHORUS: Function in a Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It helps to make the plant flower; if a cymbidium has a low percentage in its tissue on chemical examination, few flowers will be produced. AU87(1)-12 Read More

PHOSPHORUS: Functions as Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is essential to root growth and is necessary for the production of flowers, fruit and seed. A70-139 -- functions, generally = it is abundant in seeds and young growing tissue; is taken up relati... Read More

PHOTOGRAPHY: Awarded Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago How to photograph them properly; what to do, illustrated by four photos in color illustrating the best approaches; what not to do, six photos illustrating the opposite. AA85-126 Read More

PHOTOGRAPHY: Close-ups

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A review of equipment available, ending with a recommendation that a microlens, a matched teleconverter, a set of extension tubes and a camera constitute a good compromise; refer to Ca81(3)-38; inf... Read More

PHOTOGRAPHY: Color Film Problems

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Differences in sensitivity of color film as compared to the human eye; many lavender flowers seem to have high reflectance in the far red region of the spectrum where the eye has little sensitivity... Read More

PHOTOGRAPHY: Handbook

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For advanced technology on all aspects of photographing orchid flowers refer to G.Seibels -- Handbook on orchid photography (A.0.S.,1980); notable for its avant-garde use for every shot of a black ... Read More

PHOTOGRAPHY: In 3-d

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Requires no other special equipment for a standard single-lens reflex 35mm camera than an easily-made shiftbase for the tripod and a 3-D hand viewer; focus, shift the camera three-quarters of an in... Read More