Professional Marijuana Grower March-April 2018 Issue | Page 16

(Continued from page 12)
positioned over the greenhouse structure. As can be
imagined, this can be quite difficult with large struc-
tures. Growers usually rely on some sort of rope and
pulley system to aid in moving the potentially heavy
shade material. Aside from the physical labor involved,
CHILLKING Chiller Systems
®
Industrial Chillers 1/2 ton to 200 tons and up
Dehumidification specialist
Each chiller factory tested before crating
Assistance in sizing & no charge planning
CHILLKING CHILLERS PLUS 10% GUARANTEE:
®
All Chillking chillers are guaranteed to produce 110%
of the nominal ton rating at 90°F ambient.
This means you get more BTU for your dollar.
Chillking is the only chiller company to guarantee their chiller
to produce 10% more than its BTU rating.
CHILLKING ® Chillers Inc
512.303.1529
chillking.com
Visit us online to see our
complete catalog of equipment
16 • Professional Marijuana Grower
the biggest disadvantage of a manual system is that
someone (usually the grower) must be present every
day for both the covering and removal of the shade
material. Forgetting just once can cause problems for a
grower, including out-of-whack atmospheric conditions
or stunted growth due to quickly alternating photoperi-
ods.
An automatic light deprivation greenhouse is one
equipped with a motorized system for covering and
removing the light deprivation material. These systems
are typically equipped with a small electric motor.
These motors can be wired for use with a chain of car
batteries to operate in locations without access to elec-
tricity. Automatic light deprivation systems offer huge
savings in labor and also allow a marijuana grower
to use a timer for the system’s motor. With the timer, a
grower can automate the system and does not have to
be present every time the covering is removed or put
back on the greenhouse.
Advantages of Light Deprivation
There are some major advantages of using light depri-
vation for cultivating marijuana, including more control
over the harvest time, multiple harvests per growing
season, higher quality, increased yields, and a re-
duced chance of failure.
More Control Over Harvest Time
As with many things in life, timing is everything. A light
deprivation greenhouse allows a grower to control the
time of flower initiation and, in turn, the time of har-
vest. This could be advantageous for many reasons,
March/April 2018