Category: Culture

GREENHOUSES: Most Efficient Use of Sun's Radiation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The Ritelite planthouse; has its glass surfaces opposed to the surface of the atmosphere; are fixed in "normal" position in mid and higher latitudes to approximate tropic light values; refer to OA7... Read More

GREENHOUSES: Plans to Build

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A publication is usually available from your government college of agriculture which recommends plans. A72-412 Read More

GREENHOUSES: Plastic Lining for Insulation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The most economical film is two-mil polyethylene which produces a slight shading effect. A65-52 Read More

GREENHOUSES: Plastics and Their Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Plastic greenhouses can be heated as satisfactorily as glass ones; crops are of equal quality; construction costs per square foot are about one-sixth; in some areas they are assessed as temporary s... Read More

GREENHOUSES: Preferred Covering

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Glass allows for a maximum of light or of shading; next comes clear fiberglass; for a strong sun area opaline or a frosted fiberglass may be best. A72-1100 Read More

GREENHOUSES: Reflecting Light From North Wall

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use bright aluminum foil and keep it algae-free; it probably exceeds reflection from a white painted wall. A65-53 Read More

GREENHOUSES: Roof of Corrugated Plastic

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use one-sixteenth inch clear colorless plastic; the orientation of the corrugations is unimportant except to shed water and dirt most efficiently. A65-52 Read More

GREENHOUSES: Roof Slope Minimum

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Moisture can be made to run down rather than drip; 35% slope is probably the minimum and 40% is often used. A67-901 Read More

GREENHOUSES: Sanitation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A program of cleaning, sweeping and disinfecting with bleach, Physan, Shield; a fungicide treatment of plants and greenhouse with Natriphene, Panogen or Tersan; refer to A66-375+Infestations of man... Read More

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

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 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