Category: Culture

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

DIVIDING PLANTS: The Best Time

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago When new roots are forming on the latest rhizomes, even if flowers or sheath are forming on other pseudobulbs; use discretion. A70-345; OD71-27 Read More

DIVIDING PLANTS: Divisions Progress Well Then Falter

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Water them lightly, place plant in polyethylene bag and close the top; keep out of the sun. A70-631 Read More

DIVIDING PLANTS: Use of Rooting Hormones

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Orchid divisions are not affected by them; nor is there need to treat the cut ends of rhizomes with chemicals. A75-1007 Read More

FERTILIZERS: Mixed Fresh Each Time

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Inorganic fertilizers keep well if light is excluded so algae does not grow in it. A67-901 Read More

DRENCH: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago To immerse the pot and plant in a liquid. RMH Read More

DRIP: From Greenhouse Roof, Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use "Sun Clear" for the inside of plastic roofing, it causes running without dripping. A76-403 Read More

EVAPORATIVE COOLERS: Algae Control -- Use Physan 20. A78-495 -- How to Build One

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cost of materials was less than $100, not including fan; instructions; refer to A75-584; general information on function and maintainance. A61-541+; A64-377+; A74-396+ Read More

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

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