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Entry Date
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Location
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Monday, May 27, 2024
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Matt D.
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Connecticut
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Entry 44 of 116 |
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Mid-day Readings May 27th, 2024
This just shows a point in time reading in the middle portion of the day. The “Acurite” reader does log the min and max humidity and temperature over the last 24-hours but placement can be a challenge especially when the sun is out. (Cloudy days it is more accurate.)
The CO2 control does only read 449ppm, because the fan has been on and the system is in idle mode so it is still providing readings, but no active dosing at this time. Once the fan turns off and the vents close the system will go back to active dosing while it is light out to reach the target of 1,100 ppm.
Humidity = 60% (Range 43%-99%)
Temperature = 88F (Range 68F-93F)
To get these readings there are three key components…
1.) CO2 Rain Tubing- 1/8” black tubing with a pin hole every 12” that forms a 100ft. loop where the CO2 is injected on the ground. Since most of the stomata are on the underside of the leaves.
2.) CO2 Sensor- The cord is 15ft. long so it is placed as close to the plant but there is a gap since the plant is small. However, it still provides accurate readings especially since CO2 is heavier than air so it will drift to the plant anyway. The use of fans does help avoid high CO2 pockets as well.
3.) Humidity Sensor- The sensor is directly below the CO2 one so the same physical location is where the data is all coming from for now.
Full control over all conditions is not possible, the conditions provided here are in the target ranges. (Under “ideal” conditions the minimum humidity level would be raised by about 10%.)
This article stresses the importance of water when it comes to cucurbits dealing with heat stress…
Effect of climate change on the production of Cucurbitaceae species in North African countries :
https://www.researchgate.net publication/373051566_Effect_of_climate_change_on_the_production_of_Cucurbitaceae_species_in_North_African_countries
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