Professional Marijuana Grower November-December 2018 Issue | Page 42
Greenhouse Heat
the soil to hold more water than normal. Soil testing kits
should be used to determine soil quality, pH, etc.. The
most successful greenhouse cannabis growers know that
a small amount of time spent optimizing the soil condi-
tions will encourage outstanding cannabis plants with
heavy harvests of potent buds.
Electric fan heaters are particularly good for moving
the air around the structure which helps to prevent cold
spots and reduce the risk of disease. If the greenhouse
doesn’t have power then a paraffin heater is a bet-
ter option. Save money and energy by only heating
greenhouses when necessary. Most electric greenhouse
heaters come with a built in thermostat that can be set to
come on only when the temperatures drop below a cer-
tain point. Heat circulation is important when using an
electric heater. Moving the warm air around will prevent
hot spots (and their contrasting cold spots) as well in
reducing condensation that heating encourages.
Most greenhouse cannabis growers prefer to grow
cannabis directly in the soil. This allows unrestricted
root growth and the potential to grow massive cannabis
plants which can be eight to ten feet high and just as
wide. A single plant like this can often produce over two
pounds of cannabis. However some cannabis growers
prefer the flexibility of growing their plants in containers,
allowing them the flexibility to move the plants if re-
quired. The biggest problem with growing in containers
is the need to continually water/feed them while plants
grown directly in the soil need much less attention. PMG
Large, commercial-sized greenhouses are finding wood
as an alternative to compensate for expensive gas and
petroleum products. When installing a wood stove in the
greenhouse be sure to follow all your local code require-
ments. Standalone pellet stoves are especially easy to
load and operate and most come with some kind of tem-
perature control. Some have blowers to circulate heat.
Growing Tips
Optimize the soil. This can mean replacing all the soil
with quality compost or just adding some manure, or-
ganic fertilizers, bat guano etc. In dry areas some peo-
Sunmaster_SeptG&G_HalfPage_ad_v1:Half Pg ad - Horizontal 8/20/18
ple add water absorbing crystals to the soil which allow
Victor Krantz is a master grower for The Bucket
Company. He has been involved with the agriculture
industry for 30 years producing a wide variety of
food crops and setting up commercial greenhouses in
many different states. You can find them on Instagram
@thebucketcompany or @cookiesandcreamfarm. Vic-
tor may be contacted directly at 727.424.0132.
8:46 AM Page 2
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T A I L O R E D
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42 • Professional Marijuana Grower
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November/December 2018