Cervantes J : Indoor Marijuana
Horticulture (2nd Ed) USA 1993 - 316pp
in this book is presented as information which should
be available to the public. The publisher does not advocate
breaking the law in any way, shape or form and does not
promote readers to break the law.", with a further
disclaimer of any product endorsements. The foreword explains
the purpose of the book "to give a simple, complete,
description of basic gardening techniques growers use
to cultivate marijuana indoors today", the factors
involved in marijuana cultivation, and "rules of
thumb" - simple guides on key points for the reader.
There is a long section on the legal considerations, including
police practice and advice on dealing with the authorities
if searched, arrested and brought to trial.
Chapter 1 includes general matters concerning cannabis
cultivation, the indoor-outdoor dilemma (indoor recommended),
and setting up a growroom. Cervantes suggests separate
areas for propagation, growth and flowering, and (p32)
also a perpetual crop "Several clones are taken
every day or week, the same amount of plants are moved
from the vegetative to the flowering room, of course
the harvest is almost perpetual!". Advises a little-used
area, painted white, enclosed and isolated, ventilated,
with water supply, a smooth or concrete floor, a heavy
duty hook for the growlamp, adequate tools and testing
kits, and a properly functioning high-intensity growlamp.
Chapter 2 is a detailed review of light types (metal
halide/HPS recommended), intensities, spectrum and coverage.
Maximising the available light through reflectors or
moveable systems. Advises use of fluorescent tubes for
rooting cuttings. There is a discussion of electrical
wiring and safety, power consumption, and setting up
a control board.
Chapter 3 is a discussion of soil types and containers.
The soil section advises a sandy, neutral soil with
added perlite, vermiculite or pumice, peat, lime or
fertiliser, depending on soil type and pH. Discusses
soil-less systems, including how to prepare a soil-less
mix from basic ingredients, and there is a discussion
on making organic composts.. Suggests container sizes
to allow 1.5 to 2 gallons (US) per month of intended
growth, photograph of the effect of pot size on development.
Chapter 4 discusses water and fertiliser. Most watering
options discussed (manual, drip-feed or gravity-feed),
fertiliser requirements, content of major elements in
various organic waste materials, and nutrient disorders
(over-fertilisation and deficiencies).
Chapter 5 is a detailed description of hydroponic gardening
systems, with sections of different systems, growing
media (rockwool etc.), provision of water, nutrients
and the need for sterile conditions.
Chapter 6 discusses heating, ventilation and air quality.
Discussion of air circulation, plant transpiration,
air temperature, use of maximum/minimum thermometers,
humidity, additional CO2, venting and extraction, to prevent odours
with negative ion generators etc.
Chapter 7 is a detailed description of the various problems
experienced from insect and fungal attack. Advises prevention
rather than cure, and primarily organic solutions (such
as predatory insects to keep down aphids, home-made
organic insecticides and fungal control.
Chapter 8 discusses the early stages of cannabis growth
from seed, advising growing many smaller plants rather
than fewer larger specimens. Suggests germination in
tissue paper or soil/compost, transplanting to larger
containers when required. Discusses attrition rates
and need to plant more seeds than will finally be required.
Chapter 9 discusses in great detail the stages of vegetative
growth, including propagation of cuttings, transplanting,
pruning and 18 hour days.
Chapter 10 deals with flowering, sexing plants (inc.
hermaphrodites), day-length (12 hrs) and sinsemilla
Chapter 11 advises on harvesting, including choosing
the best time, sampling the crop, and diagrams of the
different resin glands as they appear under microscopy.
Includes step by step advice on harvesting the plant,
manicuring and drying techniques, production of seed
crops, and achieving second crops from underdeveloped
lower branches on the plants.
Chapter 12 contains information on breeding cannabis,
including pollen collection and fertilisation of female
flowers. A lengthy section on indoor breeding is provided
by RC Clarke (author of Marijuana Botany) including
a detailed history of the development of modern hybrids,
and tips on breeding for specific characteristics, with
a review of the suitability of various hybrids (skunk,
northern lights, big bud, Afghani, haze etc.) for indoor
The book finishes with several case studies, a calendar
and step-by step checklist. There is a glossary of terms,
an index, and advertisements for other cannabis-related
Comment: This book is extremely comprehensive,
covering many aspects of indoor cannabis cultivation
in great detail. The chapter on legal advice leaves
the reader in no doubt as to the illegality of cannabis
cultivation, and the breeding chapter suggests some
access to inside knowledge of development of cannabis
varieties such as "skunk". This work contains
much scientific information, although it is presented
in straightforward language, it would be beyond many
novice growers, although a novice grower following the
instructions may be able to produce a crop. As a reference
work, this is a valuable publication, though it would
appear to be a little too complicated for the average