Category: Culture

SHADING: For Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In California use 73% for both them and Paphiopedilums. A86-719In New York State in winter use not more than 25%. A81-688 Read More

TRACE ELEMENTS: Added to a 20-20-20 Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They are not necessary as special additives; minor elements probably are present in the fertilizer itself, or in the water supply or in the tree-fern medium being used. A67-1010 Read More

TRANSPLANTING OF SEEDLINGS: From Agar to Agar

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Do a few flasks at a time; chemicals, equipment, procedures listed in detail; refer to A80-856 Read More

TURKEY GRAVEL (GRIT): Granite Chips

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Comes in several sizes; an additive to poultry feed; Calcite #2. A75-27 Read More

VITAMINS: Useful to Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Fungi provide niacin (nicotinic acid) which enhances the growth of seedlings; folic acid (a water-soluble vitamin) and thiamine (vitamin B/l) also stimulate growth; four combinations cited; refer t... Read More

WATER (GENERAL): Heating in the Greenhouse Ceiling

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Fifty feet of copper line painted black absorbs heat in the water which feeds both the greenhouse and the home supply, requiring less energy to bring it up to the required temperature. OIE88Mar-9 Read More

WATER SOFTENERS: Simple and Economical Solution

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Bicarbonate hardness is eliminated by a "weak acid" ion exchange resin, a commercial process marketed as a Duolite C-4338 Tank; for particulars refer to A85-334 Read More

WATERING METHODS: Converted Washing-machine

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago An old style top-loading automatic washer is required; strip it to the motor and tub; directions given for adapting fittings and valves; arranged to provide pressure feed for water and/or fertilize... Read More

WATERING METHODS: Individual Tube System

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is satisfactory, but one problem is the localized or concentrated flow of water. A76-14 Read More

WOOD TREATMENTS: Anti-rot Treatment for Greenhouses Which Are Not Harmful to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Copper napthanate preparation sold under the names of Cuprinol or Kopex is the best. A77-619 Read More