Category: Culture

GREENHOUSES: Warm Growing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A discussion of location, size, shape, energy conservation, air movement, heating, automation, in New Zealand, refer to NZ86-82 Read More

LIGHTS, ELECTRIC: Blue Lights

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Plants grow faster under them, up to 50 to 70% faster in a blue-light enriched environment; photoreceptors in leaves absorb the light and initiate opening of spores in the stomata; no reason given.... Read More

LIGHTS, ELECTRIC: Hours of Use

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Experiments indicate that using artificial light in the early morning in the greenhouse is a waste of money; instead, turn them on at 3 ofclock in the afternoon when the light is naturally strong; ... Read More

LIGHTS, ELECTRIC: In Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Two systems are treated, one as in an enclosed room area and the other as supplemental lighting in a greenhouse; analysis of sunlight and of various lamps given; photosynthesis sensitivity curve pr... Read More

LIGHTS, GROWING UNDER: Best Fluorescent Lamps

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Opinions vary but it was first thought that the "natur-escent" types of lamps were best but later experiments show that "Tru-Bloom" produced better growth. Hort. revs. 1983,5-289 Read More

LIGHTS, GROWING UNDER: Comparison of Lamps

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 500 paphiopedilums grown under fluorescent lamps and the same number grown under high-pressure sodium lamps (SON/T) for nine months indicated the latter were better; also cheaper to install; they a... Read More

LIGHTS, GROWING UNDER: Personal Account

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Notes on general culture, temperature, humidity, suitable species, for considerable detail refer to Ca87(2)-14 Read More

LIGHTS, GROWING UNDER: Sodium Vapor Lamps

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The effect of one lamp shining in the neighbor's back yard all night should not disturb cymbidium's growth cycle as they are responders to temperature much more than to light; many other plants gro... Read More

LIPIDS: Growth Promoters

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The increase in yield in agricultural crops exceeds those with TRIA (Triacontanol) and they deserve testing for spraying seedlings ex-flask; commercial preparations are patented by A.J.Welebir; the... Read More

MAG AMP: Slow-release Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Grower experiment successful: use the coarse size and place on top of pot medium; moisten and let it "cake"; normal watering ensues; the cake slowly dissolves; roots not burned by it; descriptive n... Read More