Category: Culture

HURRICANES: Protection of Plants in Florida

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Methods: place plants flat under benches; place plants flat on benches, cover with wire mesh and nail down; move best plants to home or garage; after a storm wash salts off plants; if flooding can ... Read More

HYDROPONICS: Growing Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Granite chips and polystyrene used as media; nitrates of potash, phosphorous, calcium and magnesium used in solution; plants in pots stand in troughs of nutrient solution; refer to OR70-353Porous r... Read More

HYGROMETERS: Wet and Dry Bulb

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago One deg. F. depression on the wet bulb equals 5% drop in humidity from 100%; if the wet bulb reads 62 deg. F. then the relative humidity is 100 less 15 or 85%; keep the water supply in the bulb ade... Read More

HYPONEX: Commercial Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Popular in Japan; composed of 7% nitrogen, 6% phosphorous and 19% potassium in one formula; results in remarkable plant growth. A70-50 Read More

HYPONEX: Required Percentage of Flowers Open

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Had one flower or more missing, crippled or damaged; plant was too small, or in bad condition; other reasons. FR123 Read More

INJECTORS, SYPHON: Devices for Injecting Phosphoric or Citric Acid Into the Water Line

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Two recommended are Hydromix and Syphonex, both illustrated. A73-55 Read More

INSULATION: Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A three-layer job in New England; a glass-aluminum structure, with 5 mil Filon fiberglas mounted outside the glass and with aircap packaging material on the inside; refer to A78-100Inside lining wi... Read More

IRON: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago As a growth element it is used in the formation of chlorophyll; it is an assumed antidote against chlorosis; colors flowers darker; in many cases Iron chelate makes whites turn pink; a trace elemen... Read More

IRON: Functions in Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Vitally important in the formation of chlorophyll but it is not a part of it. AU75-47 Read More

FERTILIZERS: 30-10-10 with Soil Acidifiers and Chelated Iron

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A suitable fertilizer, use 1/2 tpg. at every watering but let 10% of the liquid run out of the pot for leaching action. A74-114 Read More