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Daniels P. How to grow Marijuana
Hydroponically. USA 1976. c70pp.
contents page only reviewed. Contents include: Introduction
to Hydroponics - what is it, germinating seeds. Growing
medium - requirements, gravel, sterilizing, sand, vermiculite,
perlite, other materials. The Container - manual/automatic
feeding, growing units, plastic pipes/fittings. Lighting
- day length, plant lights, fluorescents, incandescents,
arrangements of lights & costs. Nutrient solutions,
mineral salts, trace elements, water, pH. Feeding plants
- irrigation, when to feed. Sowing & Care. Problems
- spindly plants, insect control, natural insecticides,
predators, fungal attack, preventive measures, chemicals.
Harvesting - two weeks in advance, reduce feeding, dry
ice. Quick review of main points.
A step by step guide to hydroponic cultivation. Now