Van Paten G: Gardening: The Rockwool
Book USA 1991 93pp
material states "The best book on Rockwool (stonewool),
the highly productive medium that revolutionised hydroponic
cultivation. Covers many aspects of using rockwool: the
Dutch ebb & flow methods, drip systems, EC, pH, cloning
and harvesting. Offers easy to understand examples, plus
many photos, drawings and charts".
Carries disclaimer concerned with product liability,
no specific mention of cannabis or marijuana, although
states: "Readers of this book are responsible for
all plants cultivated".
1 - Rockwool, how rockwool is made, the secret of rockwool,
rockwool is safe
2 - How a plant grows in rockwool
3 - Water & nutrients, filters, nutrients, nutrient
disorders, fertilizers, organic fertilizers, osmosis,
temperature, reservoirs, pumps, garden beds, irrigation
cycle, drip irrigation, timers
4 - pH & dissolved solids, checking the pH, conditioning,
dissolved solids, checking dissolved solids, fungicides
5 - Cube gardens - growing tips, "Bobs garden",
Rockwool wick gardens
6 - Slab gardents, to set up a drip system, reusing
7 - Rockwool flock
Bibliography, glossary & index.
Comment: This large format book deals with many
aspects of growing plants in rockwool in technical detail
but with "rules of thumb" for the average
grower It makes no mention of cannabis or marijuana
throughout its text, even though I understand the author
to be the same person as Jorge Cervantes, who has authored
many books and articles on cannabis cultivation. An
existing cannabis grower may wish to consult this book,
but a non-user who saw the book would not necessarily
make the connection between this book and cannabis cultivation.
Advertising carries no explicit reference to cannabis.