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EXPANDING YOUR GREENHOUSE: GETTING
STARTED WITH HEMP
1/21/2020
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TODAY’S AGENDA
2
Webinar SpeakersModerator 1. About GrowPro
2. Understanding What is Hemp
3. Production Requirements to Consider
4. Cycle of Production
5. Best Practices for Production
6. Q&A
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3
Greenhouse Growers Insurance
Why Choose GrowPro?
• 30 years of industry experience
• Carrier rated A+, financial size XV by A.M. Best
• Industry experts for risk control guidance and
proper valuation of operations & equipment
• Competitive rates & flexible payment plans
• Expert claims handling
• World-class risk control services
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© 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only Altogether. Better.
Greenhouse Production of Hemp
What you need to know for success
Peter Armando, CEA Business Developer
January 21, 2020
NIP Group Webinar
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© 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Horticultural hemp production
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Classification: For Internal Use Only
Hemp is cannabis, but it is not marijuana• Cannabis sativa, C. indica and C. ruderalis
• Defined by THC content
► Hemp < 0.3% THC
► Marijuana > 0.3% THC
• Four primary uses for industrial hemp
► Fiber (textile, paper)
► Pulp (building materials)
► Seed/Oil (protein, feed, food, hygiene, fuel, solvent, etc)
► Flower (CBD: flower, oil, distillate, isolate)
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7 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Cannabis growers speak a different language
Traditional horticulture Hemp
Production Cultivation
Fertilizer Nutrients
Water soluble fertilizer Salts
Liners Clones
Cuttings Clones
Propagation Cloning
Pre-initiation, bulking Vegetative, veg
Stock plants Mother stock, moms
Black cloth Light deprivation, light dep
Soft chemistry Biopesticide
Biological control agents Bugs
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8 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Cannabis growers speak a different language
Traditional horticulture Hemp
High salts damage Nitrogen toxicity
Greenhouse Indoor
Cultivar Strain
Day neutral Auto flowering
Nutrient competition reducing uptake Lock out
Traits (physical characteristics) Phenotype
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9 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Hemp production requires photoperiod control
• Hemp is a short day plant
► Utilize light deprivation to exclude light (black cloth)
► Curtains can be installed truss to truss
► Assure coverage of sidewalls, door openings and exhaust fans
• Maintain vegetative growth with long days
► 18 hours of light
► Night interruption
► LED screw in replacements
• Greenhouse production outside of summer requires additional intensity for flowering
► Increase intensity or day length extension
► High Pressure Sodium – Double ended and 1000W adjustable
► Ceramic Metal Halide
► LED – Fixed spectrum and programmable spectrum
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10 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
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11 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Hemp physiology should be understood
• Dioecious – male and female reproductive organs on different plants
• Hermaphrodite – female plants with pollen structures
• Sinsemilla – pollination free, female flowers with high secondary compounds
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12 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Hemp production needs are based on final product
• Seedling and liner production
• Stock plant production
• Seed production (feminized seed)
• Flower production
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Classification: For Internal Use Only
Hemp production cycles
Photoperiod Field Greenhouse
Seedling LD n/a 21-28 days
Initial stock selection LD/SD proof n/a 4-8 weeks
Clone(propagation)
LD n/a 14-21 days
Veg(vegetative growth)
LD 8-12 weeks Varies – 7-21 days common
Flower SD 8+ weeks* 8-10 weeks*
*must be managed based on THC levels and seed shatter properties
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14 © 2020 Griffin Greenhouse Supplies, Inc.
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Greenhouse production allows year round cropping
2-3 weeks 1-2 weeks 8 weeks
12-13 week cycle
8-9 week turn on primary space
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15 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Seedling production: best practice starts with feminized seeds
• Crop time: 3-4 weeks from sow
• Sow in a 288 cell tray
► 70-75°F bottom heat
► ½” deep, coarse vermiculite cover
► Germinates in 5-7 days
• Fertility
► Use low starter charge in media
► Begin feeding with true leaves
• Build plant prior to transplant
► Transplant to 50 or 72 cell tray
► Pinch prior to transplant
► Maintain 12” height or less
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16 © 2020 Griffin Greenhouse Supplies, Inc.
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Vegetative propagation ensures 100% female crop
• Crop time: 2-3 weeks
• Requires female stock plants (mothers)
• 4-5” tip cuttings preferred
• Utilize rooting hormone
• Rockwool, engineered or stabilized
media
• Proper humidity required
► Mist system
► Humidity domes
• Bottom heat at 70-75°F
• Provide long days (18 hours)
• Fertilize when roots start to develop,
approx. 8 days
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17 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Stock production requires process
• Expect approx. 50% male plants from non-feminized seeds
• Track all stock plants with unique ID
• Stock must be grown under long days
• Bulk plants until ten cuttings supported
• Label cuttings to match stock ID
• Root cuttings and grow under long days
• Induce flowering under short days
• Identify males and females
• Discard males and associated cuttings
• Continue production of mother stock under long days
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18 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Trellis systems support tall crops through harvest
• Use with all crops over 24” tall
• Prevents branches from breaking
• Permanent framework attached to bench
• Trellis netting attached to the frame
► Single crop use
► Sold in rolls, 4-6’ wide
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19 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
CBD production requires growing through flower
• Focus on high quality flower
• Optimize cultivation techniques to achieve highest CBD levels
• Finished product: high quality flower or concentrate
• Additional processing for high end oil, isolate and distillate
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20 © 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Greenhouse production brings advantages
• Complete environmental control
• Multiple crops per year vs. single field planting
• Can increase CBD production by pruning plants longer in vegetative stage
• Easier to control pests
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Remember the vents!!
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© 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
From products to knowledge, Griffin can help with all stages of hemp production.
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© 2020 Griffin Greenhouse Supplies, Inc.
Classification: For Internal Use Only
Let us know how we can help!
By email
Gregg Urban, CEA Sales Manager – [email protected]
General team - [email protected]
By phone
Gregg Urban, CEA Sales Manager – 860-819-1230
CEA customer service – 800-888-0054 ext 89199
On the web
griffins.com
Onliant.com
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Q&A
28
Webinar SpeakersModerator 1. About GrowPro
2. Understanding What is Hemp
3. Production Requirements to Consider
4. Cycle of Production
5. Best Practices for Production
6. Q&A