Category: Culture

CHARCOAL: Properties

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Investigation of cationic exchange capacity; retention of nutrients; bacterial activity; high water holding capacity; and a high bacteria activity; feed organic type fertilizers to it; lasts foreve... Read More

FERTILIZERS: Liquid, for Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Rutgers University1s formulation applied one, three or four weeks according to season: per 100 gallons water add 12 oz. of 20-10-10 plus six ounces of 20-20-20, plus four ounces of ammonium nitrate... Read More

FERTILIZERS: Mix of Bone Meal, Superphosphate, Cottonseed Meal, Blood Meal, Guano and Potash for Top Dressing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It can be used but it has no advantage over others but lots of risk especially from the potash and blood meal. RMH Read More

FERTILIZERS: Mix Your Own

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 3 oz. of potassium nitrate (saltpetre; sodium nitrate) and two oz. ammonium phosphate dissolved in three gals. water; one ounce to one gal. water for application to plants. OR77-30330-10-10 type, a... Read More

CHARCOAL: In Cymbidium Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Has many good qualities to recomend it; used in many parts of the world; one questionable point is its filtering effect whereby modern insecticides and fungicides added to the mix may be adsorbed a... Read More

CHARCOAL: For Vandas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If entire mix is charcoal, supply all the trace elements; be sure to leach periodically. A78-1124 Read More

CHARCOAL: As Potting Drainage

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago After one year's use the plants went back; it seems to filter out and retain harmful matter in the mix. AU79-199When used for "crock" it seemed to absorb fertilizer salts and soon became toxic to b... Read More

FIBERGLASS: Compared with Glass

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Orchids grow as well under fiberglass as under glass; in Ohio glass is preferred because of lower winter light. A75-876 Read More

CHARCOAL: As Drainage

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is no better than broken crocks, crushed rock, coarse gravel, etc.,; may be reused after soaking in 10% solution of Clorox for 15 minutes or more or heating it in the oven at 250 deg.F. for 20 t... Read More

CHARCOAL: Activated to Adsorb Ethylene

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Pulverized charcoal activated by baking for two hours at 400 deg. and then hung in the greenhouse was claimed successful; activated monthly. A76-817; it definitely will not remove it by itself; air... Read More