2023 Guide to Cannabis Production - 13

PLANT HEALTH
formation and growth, while eliminating compaction, root
rot, and other issues.
Minimize crop variation by providing each young plant
with the same amount of growing media. Filling your
propagation trays by hand may seem like a cost savings,
but it's often very inefficient. It can easily result in a
difference in the amount of media per tray cell by 20%
or more. In turn, this discrepancy leads to deviations in
the amount of water and nutrients each plant gets, and
ultimately in plant size and time to reach maturity.
A specialty substrate input, such as a pellet or stabilized
media plug, makes it easy to ensure each plantlet gets off
to the best start because each one will be of consistent
weight and composition. This ensures all of your plants
get the same nutrition, EC and pH values, as well as those
aeration, drainage and water-holding capacities needed for
a great outcome. Too much of any one mineral could lead
to nutrient burn, characterized by shriveled, brown leaves
or nutrient lockout, where growth is stunted.
For additional efficiency, the plug should be easy to
store and ready to use. It should be fully compatible with
automated systems for rapid handling, while protecting
the fragile plantlets, and it should be soft and spongy
enough that cuttings can be inserted without damage.
Ideally, the plugs will have a generous dibble hole to
accommodate any variations in clone size. To summarize,
you'll get the best results during propagation by ensuring
your growing media is:
* Of consistent weight and composition;
* Optimized for cannabis;
* Well-draining and with proper aeration; and
* Automation compatible.
RISK-FREE TRANSPLANTATION
When it comes time to transplant your rooted young
plants, avoid transplant shock by using a mix that contains
exactly the same material as the plug. This will create the
ideal conditions for continual, fast development. Placing the
plug in a matching grow block (aka coco block) is a fast and
effective solution here. Like plant plugs, proprietary grow
blocks are ready to use straight off the pallet. You'll have
zero to minimal transplant shock as the root zone does not
experience any significant disruption or movement.
You could transplant the young plants straight to a
grow bag (coir bag), but splitting the growing process into
three phases maximizes your available space by enabling
crop scheduling. This is a far more productive approach:
clearly, you can grow far more seedlings per square foot
than young plants, and more young plants than grown
plants. With crop scheduling, you can create a " queue "
of young plants ready for finishing off while the previous
crop matures.
WHITE GROUND
COVER
1
POT
POT
GROGRO
GRO
Flexible Planter Bag
Flexible Planter Bag
3
Flexible Planter Bag
2
1
1
GROGRO
GRO
POT
POT
Flexible Planter Bag
4
3
3
POT
POT
Flexible Planter Bag
Flexible Planter Bag
Flexible Planter Bag
Flexible Planter Bag
Flexible Planter Bag
GROGRO
GRO
Flexible Planter Bag
Flexible Planter Bag2
2
Flexible Planter Bag
4
Flexible Planter Bag
4
DeWitt White Ground Cover
DeWitt White Ground Cover is a 3.2 oz UV-stabilized
white woven polypropylene fabric that is permeable,
allowing water and nutrients to pass through. White
Ground Cover provides light reflection to the plant
which supports the growing process.
DeWitt GRO - POTS
GRO - POTS are compatible with drip or overhead irrigation and
hydroponic flood trays. The ventilated design allows drainage
and creates a healthy root system . A durable, flexible fabric
planter bag for indoor and outdoor applications. Made of 100%
coated polypropylene and UV protected . 10 sizes available.
DeWitt Sunbelt®
DeWitt's Sunbelt®
Ground Cover
consists of 3.2 oz. polypropylene,
which resists tearing, puncturing and weed penetration.
Ideal for greenhouses, outdoor displays and as a
weed barrier for plantings without topical coverings.
Striped every 12 " to aid in plant alignment.
SUNBELT
WOVEN GROUND COVER
®
2023 GUIDE TO CANNABIS PRODUCTION 13
http://www.dewittcompany.com
2023 Guide to Cannabis Production

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