For the best experience, take the course on a desktop.

Course Plan

Step 1 - Start right

Intro Tip #1 - The right variety Tip #2 - The right density Tip # 3 - Increase density on the south bed Tip # 4 - Pruning Tip # 5 - Control the number of fruit per cluster Tip # 6 - White landscape fabric Checklist

Step 2 - Get proper ventilation

Intro Energy production Tip #1 - Prevent sudden drop of temperatures Tip #2 - Protect your crops from the wind Tip #3 - Shut off your HAF at 86°F Energy consumption Tip #4 - 75°F during the day and 67°F at night Tip #5 - Close roll-ups when it’s 63°F at night Tip #6 - Combine two ventilation types Tip #7 - What If your ventilation Is not powerful enough Checklist

Step 3 - Irrigate better

Intro Before we start Tip # 1 - Adapt irrigation to transpiration Tip # 2 - Fraction irrigation depending on your soil type Tip # 3 - Adapt irrigation to sunrise and sunset times Tip # 4 - Give 30% more water during heat waves Tip # 5 - Use only 2 drip tapes after transplanting Tip # 6 - The calculator Tip # 7 - Get irrigation on auto-pilot Tip # 8 - The 30-sec diagnostic Checklist

Step 4 - The necessity of dehumidifying

Intro Tip # 1 - Anti-condensation treatment Tip # 2 - Use your heater’s fan to increase airflow Tip # 3 - Smooth temperature increase in the morning Tip # 4 - Get a sensor Tip # 5 - Pulse out air every 40 min Tip # 6 - Train your workers to spot diseases Tip # 7 - Weekly inspection Tip # 8 - Taking the dead plant material out as you prune Checklist

Step 5 - Heat to Unlock Growth

Intro Tip # 1 - Adjust the temperature depending on cloud coverage Tip # 2 - More clusters = lower temperature Tip # 3 - Use ducted heater Tip # 4 - Use backup thermostat Tip # 5 - Set up alerts Checklist

Step 5

Your checklist

If you are reading this during planning season :

Time your planting to profit from spring light. Generally March to April.
Select and install a reliable heater sized for your tunnel.
Add ducts if your heater uses a blower (it ensures an even temperature and protects plant heads).
Install a backup thermostat and set it 3°F below your main target.
Set up a temperature alert system (e.g., AcuRite, Orisha) to avoid unnoticed failures.
Plan your temperature targets by fruit load (see Step 5, Tip #3).
Print a fruit load vs. temperature chart and install it in your tunnel.

If you are reading this during the growing season :

Include heating in your dehumidification pulses.
Adjust your temperature target based on :
- Current fruit load
- Daily sunlight levels (cloudy vs. sunny)
Watch your stem size (12" below the head).
Thicker than an AA battery = energy not used efficiently.
Adjust your temperature if the stem is too thick or the growth slows.
If your heater doesn't have ducts, consider shopping for a blower model before next season.
Install a backup thermostat and set it 3°F below your main target.

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